// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// The Google C++ Testing Framework (Google Test)
#include <gtest/gtest.h>
#include <gtest/gtest-spi.h>
#include <ctype.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef GTEST_OS_LINUX
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
#define GTEST_HAS_GETTIMEOFDAY
#include <fcntl.h>
#include <limits.h>
#include <sched.h>
// Declares vsnprintf(). This header is not available on Windows.
#include <strings.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <unistd.h>
#include <string>
#include <vector>
#elif defined(_WIN32_WCE) // We are on Windows CE.
#include <windows.h> // NOLINT
#elif defined(_WIN32) // We are on Windows proper.
#include <io.h> // NOLINT
#include <sys/timeb.h> // NOLINT
#include <sys/types.h> // NOLINT
#include <sys/stat.h> // NOLINT
#if defined(__MINGW__) || defined(__MINGW32__)
// MinGW has gettimeofday() but not _ftime64().
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
// TODO(kenton@google.com): There are other ways to get the time on
// Windows, like GetTickCount() or GetSystemTimeAsFileTime(). MinGW
// supports these. consider using them instead.
#define GTEST_HAS_GETTIMEOFDAY
#include <sys/time.h> // NOLINT
#endif
// cpplint thinks that the header is already included, so we want to
// silence it.
#include <windows.h> // NOLINT
#else
// Assume other platforms have gettimeofday().
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
#define GTEST_HAS_GETTIMEOFDAY
// cpplint thinks that the header is already included, so we want to
// silence it.
#include <sys/time.h> // NOLINT
#include <unistd.h> // NOLINT
#endif
// Indicates that this translation unit is part of Google Test's
// implementation. It must come before gtest-internal-inl.h is
// included, or there will be a compiler error. This trick is to
// prevent a user from accidentally including gtest-internal-inl.h in
// his code.
#define GTEST_IMPLEMENTATION
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION
#ifdef GTEST_OS_WINDOWS
#define fileno _fileno
#define isatty _isatty
#define vsnprintf _vsnprintf
#endif // GTEST_OS_WINDOWS
namespace testing {
// Constants.
// A test that matches this pattern is disabled and not run.
static const char kDisableTestPattern[] = "DISABLED_*";
// A test filter that matches everything.
static const char kUniversalFilter[] = "*";
// The default output file for XML output.
static const char kDefaultOutputFile[] = "test_detail.xml";
GTEST_DEFINE_bool(
break_on_failure,
internal::BoolFromGTestEnv("break_on_failure", false),
"True iff a failed assertion should be a debugger break-point.");
GTEST_DEFINE_bool(
catch_exceptions,
internal::BoolFromGTestEnv("catch_exceptions", false),
"True iff " GTEST_NAME
" should catch exceptions and treat them as test failures.");
GTEST_DEFINE_string(
color,
internal::StringFromGTestEnv("color", "auto"),
"Whether to use colors in the output. Valid values: yes, no, "
"and auto. 'auto' means to use colors if the output is "
"being sent to a terminal and the TERM environment variable "
"is set to xterm or xterm-color.");
GTEST_DEFINE_string(
filter,
internal::StringFromGTestEnv("filter", kUniversalFilter),
"A colon-separated list of glob (not regex) patterns "
"for filtering the tests to run, optionally followed by a "
"'-' and a : separated list of negative patterns (tests to "
"exclude). A test is run if it matches one of the positive "
"patterns and does not match any of the negative patterns.");
GTEST_DEFINE_bool(list_tests, false,
"List all tests without running them.");
GTEST_DEFINE_string(
output,
internal::StringFromGTestEnv("output", ""),
"A format (currently must be \"xml\"), optionally followed "
"by a colon and an output file name or directory. A directory "
"is indicated by a trailing pathname separator. "
"Examples: \"xml:filename.xml\", \"xml::directoryname/\". "
"If a directory is specified, output files will be created "
"within that directory, with file-names based on the test "
"executable's name and, if necessary, made unique by adding "
"digits.");
GTEST_DEFINE_int32(
repeat,
internal::Int32FromGTestEnv("repeat", 1),
"How many times to repeat each test. Specify a negative number "
"for repeating forever. Useful for shaking out flaky tests.");
GTEST_DEFINE_int32(
stack_trace_depth,
internal::Int32FromGTestEnv("stack_trace_depth", kMaxStackTraceDepth),
"The maximum number of stack frames to print when an "
"assertion fails. The valid range is 0 through 100, inclusive.");
GTEST_DEFINE_bool(
show_internal_stack_frames, false,
"True iff " GTEST_NAME " should include internal stack frames when "
"printing test failure stack traces.");
namespace internal {
// GTestIsInitialized() returns true iff the user has initialized
// Google Test. Useful for catching the user mistake of not initializing
// Google Test before calling RUN_ALL_TESTS().
// A user must call testing::InitGoogleTest() to initialize Google
// Test. g_parse_gtest_flags_called is set to true iff
// InitGoogleTest() has been called. We don't protect this variable
// under a mutex as it is only accessed in the main thread.
static bool g_parse_gtest_flags_called = false;
static bool GTestIsInitialized() { return g_parse_gtest_flags_called; }
// Iterates over a list of TestCases, keeping a running sum of the
// results of calling a given int-returning method on each.
// Returns the sum.
static int SumOverTestCaseList(const internal::List<TestCase*>& case_list,
int (TestCase::*method)() const) {
int sum = 0;
for (const internal::ListNode<TestCase*>* node = case_list.Head();
node != NULL;
node = node->next()) {
sum += (node->element()->*method)();
}
return sum;
}
// Returns true iff the test case passed.
static bool TestCasePassed(const TestCase* test_case) {
return test_case->should_run() && test_case->Passed();
}
// Returns true iff the test case failed.
static bool TestCaseFailed(const TestCase* test_case) {
return test_case->should_run() && test_case->Failed();
}
// Returns true iff test_case contains at least one test that should
// run.
static bool ShouldRunTestCase(const TestCase* test_case) {
return test_case->should_run();
}
#ifdef _WIN32_WCE
// Windows CE has no C library. The abort() function is used in
// several places in Google Test. This implementation provides a reasonable
// imitation of standard behaviour.
static void abort() {
DebugBreak();
TerminateProcess(GetCurrentProcess(), 1);
}
#endif // _WIN32_WCE
// AssertHelper constructor.
AssertHelper::AssertHelper(TestPartResultType type, const char* file,
int line, const char* message)
: type_(type), file_(file), line_(line), message_(message) {
}
// Message assignment, for assertion streaming support.
void AssertHelper::operator=(const Message& message) const {
UnitTest::GetInstance()->
AddTestPartResult(type_, file_, line_,
AppendUserMessage(message_, message),
UnitTest::GetInstance()->impl()
->CurrentOsStackTraceExceptTop(1)
// Skips the stack frame for this function itself.
); // NOLINT
}
// Application pathname gotten in InitGoogleTest.
String g_executable_path;
// Returns the current application's name, removing directory path if that
// is present.
FilePath GetCurrentExecutableName() {
FilePath result;
#if defined(_WIN32_WCE) || defined(_WIN32)
result.Set(FilePath(g_executable_path).RemoveExtension("exe"));
#else
result.Set(FilePath(g_executable_path));
#endif // _WIN32_WCE || _WIN32
return result.RemoveDirectoryName();
}
// Functions for processing the gtest_output flag.
// Returns the output format, or "" for normal printed output.
String UnitTestOptions::GetOutputFormat() {
const char* const gtest_output_flag = GTEST_FLAG(output).c_str();
if (gtest_output_flag == NULL) return String("");
const char* const colon = strchr(gtest_output_flag, ':');
return (colon == NULL) ?
String(gtest_output_flag) :
String(gtest_output_flag, colon - gtest_output_flag);
}
// Returns the name of the requested output file, or the default if none
// was explicitly specified.
String UnitTestOptions::GetOutputFile() {
const char* const gtest_output_flag = GTEST_FLAG(output).c_str();
if (gtest_output_flag == NULL)
return String("");
const char* const colon = strchr(gtest_output_flag, ':');
if (colon == NULL)
return String(kDefaultOutputFile);
internal::FilePath output_name(colon + 1);
if (!output_name.IsDirectory())
return output_name.ToString();
internal::FilePath result(internal::FilePath::GenerateUniqueFileName(
output_name, internal::GetCurrentExecutableName(),
GetOutputFormat().c_str()));
return result.ToString();
}
// Returns true iff the wildcard pattern matches the string. The
// first ':' or '\0' character in pattern marks the end of it.
//
// This recursive algorithm isn't very efficient, but is clear and
// works well enough for matching test names, which are short.
bool UnitTestOptions::PatternMatchesString(const char *pattern,
const char *str) {
switch (*pattern) {
case '\0':
case ':': // Either ':' or '\0' marks the end of the pattern.
return *str == '\0';
case '?': // Matches any single character.
return *str != '\0' && PatternMatchesString(pattern + 1, str + 1);
case '*': // Matches any string (possibly empty) of characters.
return (*str != '\0' && PatternMatchesString(pattern, str + 1)) ||
PatternMatchesString(pattern + 1, str);
default: // Non-special character. Matches itself.
return *pattern == *str &&
PatternMatchesString(pattern + 1, str + 1);
}
}
bool UnitTestOptions::MatchesFilter(const String& name, const char* filter) {
const char *cur_pattern = filter;
while (true) {
if (PatternMatchesString(cur_pattern, name.c_str())) {
return true;
}
// Finds the next pattern in the filter.
cur_pattern = strchr(cur_pattern, ':');
// Returns if no more pattern can be found.
if (cur_pattern == NULL) {
return false;
}
// Skips the pattern separater (the ':' character).
cur_pattern++;
}
}
// TODO(keithray): move String function implementations to gtest-string.cc.
// Returns true iff the user-specified filter matches the test case
// name and the test name.
bool UnitTestOptions::FilterMatchesTest(const String &test_case_name,
const String &test_name) {
const String& full_name = String::Format("%s.%s",
test_case_name.c_str(),
test_name.c_str());
// Split --gtest_filter at '-', if there is one, to separate into
// positive filter and negative filter portions
const char* const p = GTEST_FLAG(filter).c_str();
const char* const dash = strchr(p, '-');
String positive;
String negative;
if (dash == NULL) {
positive = GTEST_FLAG(filter).c_str(); // Whole string is a positive filter
negative = String("");
} else {
positive.Set(p, dash - p); // Everything up to the dash
negative = String(dash+1); // Everything after the dash
if (positive.empty()) {
// Treat '-test1' as the same as '*-test1'
positive = kUniversalFilter;
}
}
// A filter is a colon-separated list of patterns. It matches a
// test if any pattern in it matches the test.
return (MatchesFilter(full_name, positive.c_str()) &&
!MatchesFilter(full_name, negative.c_str()));
}
#ifdef GTEST_OS_WINDOWS
// Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the
// given SEH exception, or EXCEPTION_CONTINUE_SEARCH otherwise.
// This function is useful as an __except condition.
int UnitTestOptions::GTestShouldProcessSEH(DWORD exception_code) {
// Google Test should handle an exception if:
// 1. the user wants it to, AND
// 2. this is not a breakpoint exception.
return (GTEST_FLAG(catch_exceptions) &&
exception_code != EXCEPTION_BREAKPOINT) ?
EXCEPTION_EXECUTE_HANDLER :
EXCEPTION_CONTINUE_SEARCH;
}
#endif // GTEST_OS_WINDOWS
} // namespace internal
// The interface for printing the result of a UnitTest
class UnitTestEventListenerInterface {
public:
// The d'tor is pure virtual as this is an abstract class.
virtual ~UnitTestEventListenerInterface() = 0;
// Called before the unit test starts.
virtual void OnUnitTestStart(const UnitTest*) {}
// Called after the unit test ends.
virtual void OnUnitTestEnd(const UnitTest*) {}
// Called before the test case starts.
virtual void OnTestCaseStart(const TestCase*) {}
// Called after the test case ends.
virtual void OnTestCaseEnd(const TestCase*) {}
// Called before the global set-up starts.
virtual void OnGlobalSetUpStart(const UnitTest*) {}
// Called after the global set-up ends.
virtual void OnGlobalSetUpEnd(const UnitTest*) {}
// Called before the global tear-down starts.
virtual void OnGlobalTearDownStart(const UnitTest*) {}
// Called after the global tear-down ends.
virtual void OnGlobalTearDownEnd(const UnitTest*) {}
// Called before the test starts.
virtual void OnTestStart(const TestInfo*) {}
// Called after the test ends.
virtual void OnTestEnd(const TestInfo*) {}
// Called after an assertion.
virtual void OnNewTestPartResult(const TestPartResult*) {}
};
// Constructs an empty TestPartResultArray.
TestPartResultArray::TestPartResultArray()
: list_(new internal::List<TestPartResult>) {
}
// Destructs a TestPartResultArray.
TestPartResultArray::~TestPartResultArray() {
delete list_;
}
// Appends a TestPartResult to the array.
void TestPartResultArray::Append(const TestPartResult& result) {
list_->PushBack(result);
}
// Returns the TestPartResult at the given index (0-based).
const TestPartResult& TestPartResultArray::GetTestPartResult(int index) const {
if (index < 0 || index >= size()) {
printf("\nInvalid index (%d) into TestPartResultArray.\n", index);
abort();
}
const internal::ListNode<TestPartResult>* p = list_->Head();
for (int i = 0; i < index; i++) {
p = p->next();
}
return p->element();
}
// Returns the number of TestPartResult objects in the array.
int TestPartResultArray::size() const {
return list_->size();
}
// The c'tor sets this object as the test part result reporter used by
// Google Test. The 'result' parameter specifies where to report the
// results.
ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter(
TestPartResultArray* result)
: old_reporter_(UnitTest::GetInstance()->impl()->
test_part_result_reporter()),
result_(result) {
internal::UnitTestImpl* const impl = UnitTest::GetInstance()->impl();
impl->set_test_part_result_reporter(this);
}
// The d'tor restores the test part result reporter used by Google Test
// before.
ScopedFakeTestPartResultReporter::~ScopedFakeTestPartResultReporter() {
UnitTest::GetInstance()->impl()->
set_test_part_result_reporter(old_reporter_);
}
// Increments the test part result count and remembers the result.
// This method is from the TestPartResultReporterInterface interface.
void ScopedFakeTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
result_->Append(result);
}
namespace internal {
// This predicate-formatter checks that 'results' contains a test part
// failure of the given type and that the failure message contains the
// given substring.
AssertionResult HasOneFailure(const char* /* results_expr */,
const char* /* type_expr */,
const char* /* substr_expr */,
const TestPartResultArray& results,
TestPartResultType type,
const char* substr) {
const String expected(
type == TPRT_FATAL_FAILURE ? "1 fatal failure" :
"1 non-fatal failure");
Message msg;
if (results.size() != 1) {
msg << "Expected: " << expected << "\n"
<< " Actual: " << results.size() << " failures";
for (int i = 0; i < results.size(); i++) {
msg << "\n" << results.GetTestPartResult(i);
}
return AssertionFailure(msg);
}
const TestPartResult& r = results.GetTestPartResult(0);
if (r.type() != type) {
msg << "Expected: " << expected << "\n"
<< " Actual:\n"
<< r;
return AssertionFailure(msg);
}
if (strstr(r.message(), substr) == NULL) {
msg << "Expected: " << expected << " containing \""
<< substr << "\"\n"
<< " Actual:\n"
<< r;
return AssertionFailure(msg);
}
return AssertionSuccess();
}
// The constructor of SingleFailureChecker remembers where to look up
// test part results, what type of failure we expect, and what
// substring the failure message should contain.
SingleFailureChecker:: SingleFailureChecker(
const TestPartResultArray* results,
TestPartResultType type,
const char* substr)
: results_(results),
type_(type),
substr_(substr) {}
// The destructor of SingleFailureChecker verifies that the given
// TestPartResultArray contains exactly one failure that has the given
// type and contains the given substring. If that's not the case, a
// non-fatal failure will be generated.
SingleFailureChecker::~SingleFailureChecker() {
EXPECT_PRED_FORMAT3(HasOneFailure, *results_, type_, substr_.c_str());
}
// Reports a test part result.
void UnitTestImpl::ReportTestPartResult(const TestPartResult& result) {
current_test_result()->AddTestPartResult(result);
result_printer()->OnNewTestPartResult(&result);
}
// Returns the current test part result reporter.
TestPartResultReporterInterface* UnitTestImpl::test_part_result_reporter() {
return test_part_result_reporter_;
}
// Sets the current test part result reporter.
void UnitTestImpl::set_test_part_result_reporter(
TestPartResultReporterInterface* reporter) {
test_part_result_reporter_ = reporter;
}
// Gets the number of successful test cases.
int UnitTestImpl::successful_test_case_count() const {
return test_cases_.CountIf(TestCasePassed);
}
// Gets the number of failed test cases.
int UnitTestImpl::failed_test_case_count() const {
return test_cases_.CountIf(TestCaseFailed);
}
// Gets the number of all test cases.
int UnitTestImpl::total_test_case_count() const {
return test_cases_.size();
}
// Gets the number of all test cases that contain at least one test
// that should run.
int UnitTestImpl::test_case_to_run_count() const {
return test_cases_.CountIf(ShouldRunTestCase);
}
// Gets the number of successful tests.
int UnitTestImpl::successful_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::successful_test_count);
}
// Gets the number of failed tests.
int UnitTestImpl::failed_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::failed_test_count);
}
// Gets the number of disabled tests.
int UnitTestImpl::disabled_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::disabled_test_count);
}
// Gets the number of all tests.
int UnitTestImpl::total_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::total_test_count);
}
// Gets the number of tests that should run.
int UnitTestImpl::test_to_run_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::test_to_run_count);
}
// Returns the current OS stack trace as a String.
//
// The maximum number of stack frames to be included is specified by
// the gtest_stack_trace_depth flag. The skip_count parameter
// specifies the number of top frames to be skipped, which doesn't
// count against the number of frames to be included.
//
// For example, if Foo() calls Bar(), which in turn calls
// CurrentOsStackTraceExceptTop(1), Foo() will be included in the
// trace but Bar() and CurrentOsStackTraceExceptTop() won't.
String UnitTestImpl::CurrentOsStackTraceExceptTop(int skip_count) {
(void)skip_count;
return String("");
}
static TimeInMillis GetTimeInMillis() {
#ifdef _WIN32_WCE // We are on Windows CE
// Difference between 1970-01-01 and 1601-01-01 in miliseconds.
// http://analogous.blogspot.com/2005/04/epoch.html
const TimeInMillis kJavaEpochToWinFileTimeDelta = 11644473600000UL;
const DWORD kTenthMicrosInMilliSecond = 10000;
SYSTEMTIME now_systime;
FILETIME now_filetime;
ULARGE_INTEGER now_int64;
// TODO(kenton@google.com): Shouldn't this just use
// GetSystemTimeAsFileTime()?
GetSystemTime(&now_systime);
if (SystemTimeToFileTime(&now_systime, &now_filetime)) {
now_int64.LowPart = now_filetime.dwLowDateTime;
now_int64.HighPart = now_filetime.dwHighDateTime;
now_int64.QuadPart = (now_int64.QuadPart / kTenthMicrosInMilliSecond) -
kJavaEpochToWinFileTimeDelta;
return now_int64.QuadPart;
}
return 0;
#elif defined(_WIN32) && !defined(GTEST_HAS_GETTIMEOFDAY)
__timeb64 now;
#ifdef _MSC_VER
// MSVC 8 deprecates _ftime64(), so we want to suppress warning 4996
// (deprecated function) there.
// TODO(kenton@google.com): Use GetTickCount()? Or use
// SystemTimeToFileTime()
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
_ftime64(&now);
#pragma warning(pop) // Restores the warning state.
#else
_ftime64(&now);
#endif // _MSC_VER
return static_cast<TimeInMillis>(now.time) * 1000 + now.millitm;
#elif defined(GTEST_HAS_GETTIMEOFDAY)
struct timeval now;
gettimeofday(&now, NULL);
return static_cast<TimeInMillis>(now.tv_sec) * 1000 + now.tv_usec / 1000;
#else
#error "Don't know how to get the current time on your system."
#endif
}
// Utilities
// class String
// Returns the input enclosed in double quotes if it's not NULL;
// otherwise returns "(null)". For example, "\"Hello\"" is returned
// for input "Hello".
//
// This is useful for printing a C string in the syntax of a literal.
//
// Known issue: escape sequences are not handled yet.
String String::ShowCStringQuoted(const char* c_str) {
return c_str ? String::Format("\"%s\"", c_str) : String("(null)");
}
// Copies at most length characters from str into a newly-allocated
// piece of memory of size length+1. The memory is allocated with new[].
// A terminating null byte is written to the memory, and a pointer to it
// is returned. If str is NULL, NULL is returned.
static char* CloneString(const char* str, size_t length) {
if (str == NULL) {
return NULL;
} else {
char* const clone = new char[length + 1];
// MSVC 8 deprecates strncpy(), so we want to suppress warning
// 4996 (deprecated function) there.
#ifdef GTEST_OS_WINDOWS // We are on Windows.
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
strncpy(clone, str, length);
#pragma warning(pop) // Restores the warning state.
#else // We are on Linux or Mac OS.
strncpy(clone, str, length);
#endif // GTEST_OS_WINDOWS
clone[length] = '\0';
return clone;
}
}
// Clones a 0-terminated C string, allocating memory using new. The
// caller is responsible for deleting[] the return value. Returns the
// cloned string, or NULL if the input is NULL.
const char * String::CloneCString(const char* c_str) {
return (c_str == NULL) ?
NULL : CloneString(c_str, strlen(c_str));
}
// Compares two C strings. Returns true iff they have the same content.
//
// Unlike strcmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CStringEquals(const char * lhs, const char * rhs) {
if ( lhs == NULL ) return rhs == NULL;
if ( rhs == NULL ) return false;
return strcmp(lhs, rhs) == 0;
}
#if GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING
// Converts an array of wide chars to a narrow string using the UTF-8
// encoding, and streams the result to the given Message object.
static void StreamWideCharsToMessage(const wchar_t* wstr, size_t len,
Message* msg) {
for (size_t i = 0; i != len; i++) {
// TODO(wan): consider allowing a testing::String object to
// contain '\0'. This will make it behave more like std::string,
// and will allow ToUtf8String() to return the correct encoding
// for '\0' s.t. we can get rid of the conditional here (and in
// several other places).
if (wstr[i]) {
*msg << internal::ToUtf8String(wstr[i]);
} else {
*msg << '\0';
}
}
}
#endif // GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING
} // namespace internal
#if GTEST_HAS_STD_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& Message::operator <<(const ::std::wstring& wstr) {
internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this);
return *this;
}
#endif // GTEST_HAS_STD_WSTRING
#if GTEST_HAS_GLOBAL_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& Message::operator <<(const ::wstring& wstr) {
internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this);
return *this;
}
#endif // GTEST_HAS_GLOBAL_WSTRING
namespace internal {
// Formats a value to be used in a failure message.
// For a char value, we print it as a C++ char literal and as an
// unsigned integer (both in decimal and in hexadecimal).
String FormatForFailureMessage(char ch) {
const unsigned int ch_as_uint = ch;
// A String object cannot contain '\0', so we print "\\0" when ch is
// '\0'.
return String::Format("'%s' (%u, 0x%X)",
ch ? String::Format("%c", ch).c_str() : "\\0",
ch_as_uint, ch_as_uint);
}
// For a wchar_t value, we print it as a C++ wchar_t literal and as an
// unsigned integer (both in decimal and in hexidecimal).
String FormatForFailureMessage(wchar_t wchar) {
// The C++ standard doesn't specify the exact size of the wchar_t
// type. It just says that it shall have the same size as another
// integral type, called its underlying type.
//
// Therefore, in order to print a wchar_t value in the numeric form,
// we first convert it to the largest integral type (UInt64) and
// then print the converted value.
//
// We use streaming to print the value as "%llu" doesn't work
// correctly with MSVC 7.1.
const UInt64 wchar_as_uint64 = wchar;
Message msg;
// A String object cannot contain '\0', so we print "\\0" when wchar is
// L'\0'.
msg << "L'" << (wchar ? ToUtf8String(wchar).c_str() : "\\0") << "' ("
<< wchar_as_uint64 << ", 0x" << ::std::setbase(16)
<< wchar_as_uint64 << ")";
return msg.GetString();
}
} // namespace internal
// AssertionResult constructor.
AssertionResult::AssertionResult(const internal::String& failure_message)
: failure_message_(failure_message) {
}
// Makes a successful assertion result.
AssertionResult AssertionSuccess() {
return AssertionResult();
}
// Makes a failed assertion result with the given failure message.
AssertionResult AssertionFailure(const Message& message) {
return AssertionResult(message.GetString());
}
namespace internal {
// Constructs and returns the message for an equality assertion
// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
//
// The first four parameters are the expressions used in the assertion
// and their values, as strings. For example, for ASSERT_EQ(foo, bar)
// where foo is 5 and bar is 6, we have:
//
// expected_expression: "foo"
// actual_expression: "bar"
// expected_value: "5"
// actual_value: "6"
//
// The ignoring_case parameter is true iff the assertion is a
// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will
// be inserted into the message.
AssertionResult EqFailure(const char* expected_expression,
const char* actual_expression,
const String& expected_value,
const String& actual_value,
bool ignoring_case) {
Message msg;
msg << "Value of: " << actual_expression;
if (actual_value != actual_expression) {
msg << "\n Actual: " << actual_value;
}
msg << "\nExpected: " << expected_expression;
if (ignoring_case) {
msg << " (ignoring case)";
}
if (expected_value != expected_expression) {
msg << "\nWhich is: " << expected_value;
}
return AssertionFailure(msg);
}
// Helper function for implementing ASSERT_NEAR.
AssertionResult DoubleNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
double val1,
double val2,
double abs_error) {
const double diff = fabs(val1 - val2);
if (diff <= abs_error) return AssertionSuccess();
// TODO(wan): do not print the value of an expression if it's
// already a literal.
Message msg;
msg << "The difference between " << expr1 << " and " << expr2
<< " is " << diff << ", which exceeds " << abs_error_expr << ", where\n"
<< expr1 << " evaluates to " << val1 << ",\n"
<< expr2 << " evaluates to " << val2 << ", and\n"
<< abs_error_expr << " evaluates to " << abs_error << ".";
return AssertionFailure(msg);
}
// Helper template for implementing FloatLE() and DoubleLE().
template <typename RawType>
AssertionResult FloatingPointLE(const char* expr1,
const char* expr2,
RawType val1,
RawType val2) {
// Returns success if val1 is less than val2,
if (val1 < val2) {
return AssertionSuccess();
}
// or if val1 is almost equal to val2.
const FloatingPoint<RawType> lhs(val1), rhs(val2);
if (lhs.AlmostEquals(rhs)) {
return AssertionSuccess();
}
// Note that the above two checks will both fail if either val1 or
// val2 is NaN, as the IEEE floating-point standard requires that
// any predicate involving a NaN must return false.
StrStream val1_ss;
val1_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val1;
StrStream val2_ss;
val2_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val2;
Message msg;
msg << "Expected: (" << expr1 << ") <= (" << expr2 << ")\n"
<< " Actual: " << StrStreamToString(&val1_ss) << " vs "
<< StrStreamToString(&val2_ss);
return AssertionFailure(msg);
}
} // namespace internal
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult FloatLE(const char* expr1, const char* expr2,
float val1, float val2) {
return internal::FloatingPointLE<float>(expr1, expr2, val1, val2);
}
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult DoubleLE(const char* expr1, const char* expr2,
double val1, double val2) {
return internal::FloatingPointLE<double>(expr1, expr2, val1, val2);
}
namespace internal {
// The helper function for {ASSERT|EXPECT}_EQ with int or enum
// arguments.
AssertionResult CmpHelperEQ(const char* expected_expression,
const char* actual_expression,
BiggestInt expected,
BiggestInt actual) {
if (expected == actual) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
FormatForComparisonFailureMessage(expected, actual),
FormatForComparisonFailureMessage(actual, expected),
false);
}
// A macro for implementing the helper functions needed to implement
// ASSERT_?? and EXPECT_?? with integer or enum arguments. It is here
// just to avoid copy-and-paste of similar code.
#define GTEST_IMPL_CMP_HELPER(op_name, op)\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
BiggestInt val1, BiggestInt val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
Message msg;\
msg << "Expected: (" << expr1 << ") " #op " (" << expr2\
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2)\
<< " vs " << FormatForComparisonFailureMessage(val2, val1);\
return AssertionFailure(msg);\
}\
}
// Implements the helper function for {ASSERT|EXPECT}_NE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER(NE, !=)
// Implements the helper function for {ASSERT|EXPECT}_LE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER(LE, <=)
// Implements the helper function for {ASSERT|EXPECT}_LT with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER(LT, < )
// Implements the helper function for {ASSERT|EXPECT}_GE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER(GE, >=)
// Implements the helper function for {ASSERT|EXPECT}_GT with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER(GT, > )
#undef GTEST_IMPL_CMP_HELPER
// The helper function for {ASSERT|EXPECT}_STREQ.
AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual) {
if (String::CStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowCStringQuoted(expected),
String::ShowCStringQuoted(actual),
false);
}
// The helper function for {ASSERT|EXPECT}_STRCASEEQ.
AssertionResult CmpHelperSTRCASEEQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual) {
if (String::CaseInsensitiveCStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowCStringQuoted(expected),
String::ShowCStringQuoted(actual),
true);
}
// The helper function for {ASSERT|EXPECT}_STRNE.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2) {
if (!String::CStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << "), actual: \""
<< s1 << "\" vs \"" << s2 << "\"";
return AssertionFailure(msg);
}
}
// The helper function for {ASSERT|EXPECT}_STRCASENE.
AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2) {
if (!String::CaseInsensitiveCStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << ") (ignoring case), actual: \""
<< s1 << "\" vs \"" << s2 << "\"";
return AssertionFailure(msg);
}
}
} // namespace internal
namespace {
// Helper functions for implementing IsSubString() and IsNotSubstring().
// This group of overloaded functions return true iff needle is a
// substring of haystack. NULL is considered a substring of itself
// only.
bool IsSubstringPred(const char* needle, const char* haystack) {
if (needle == NULL || haystack == NULL)
return needle == haystack;
return strstr(haystack, needle) != NULL;
}
bool IsSubstringPred(const wchar_t* needle, const wchar_t* haystack) {
if (needle == NULL || haystack == NULL)
return needle == haystack;
return wcsstr(haystack, needle) != NULL;
}
// StringType here can be either ::std::string or ::std::wstring.
template <typename StringType>
bool IsSubstringPred(const StringType& needle,
const StringType& haystack) {
return haystack.find(needle) != StringType::npos;
}
// This function implements either IsSubstring() or IsNotSubstring(),
// depending on the value of the expected_to_be_substring parameter.
// StringType here can be const char*, const wchar_t*, ::std::string,
// or ::std::wstring.
template <typename StringType>
AssertionResult IsSubstringImpl(
bool expected_to_be_substring,
const char* needle_expr, const char* haystack_expr,
const StringType& needle, const StringType& haystack) {
if (IsSubstringPred(needle, haystack) == expected_to_be_substring)
return AssertionSuccess();
const bool is_wide_string = sizeof(needle[0]) > 1;
const char* const begin_string_quote = is_wide_string ? "L\"" : "\"";
return AssertionFailure(
Message()
<< "Value of: " << needle_expr << "\n"
<< " Actual: " << begin_string_quote << needle << "\"\n"
<< "Expected: " << (expected_to_be_substring ? "" : "not ")
<< "a substring of " << haystack_expr << "\n"
<< "Which is: " << begin_string_quote << haystack << "\"");
}
} // namespace
// IsSubstring() and IsNotSubstring() check whether needle is a
// substring of haystack (NULL is considered a substring of itself
// only), and return an appropriate error message when they fail.
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#if GTEST_HAS_STD_STRING
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#endif // GTEST_HAS_STD_STRING
#if GTEST_HAS_STD_WSTRING
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#endif // GTEST_HAS_STD_WSTRING
namespace internal {
#ifdef GTEST_OS_WINDOWS
namespace {
// Helper function for IsHRESULT{SuccessFailure} predicates
AssertionResult HRESULTFailureHelper(const char* expr,
const char* expected,
long hr) { // NOLINT
#ifdef _WIN32_WCE
// Windows CE doesn't support FormatMessage.
const char error_text[] = "";
#else
// Looks up the human-readable system message for the HRESULT code
// and since we're not passing any params to FormatMessage, we don't
// want inserts expanded.
const DWORD kFlags = FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS;
const DWORD kBufSize = 4096; // String::Format can't exceed this length.
// Gets the system's human readable message string for this HRESULT.
char error_text[kBufSize] = { '\0' };
DWORD message_length = ::FormatMessageA(kFlags,
0, // no source, we're asking system
hr, // the error
0, // no line width restrictions
error_text, // output buffer
kBufSize, // buf size
NULL); // no arguments for inserts
// Trims tailing white space (FormatMessage leaves a trailing cr-lf)
for (; message_length && isspace(error_text[message_length - 1]);
--message_length) {
error_text[message_length - 1] = '\0';
}
#endif // _WIN32_WCE
const String error_hex(String::Format("0x%08X ", hr));
Message msg;
msg << "Expected: " << expr << " " << expected << ".\n"
<< " Actual: " << error_hex << error_text << "\n";
return ::testing::AssertionFailure(msg);
}
} // namespace
AssertionResult IsHRESULTSuccess(const char* expr, long hr) { // NOLINT
if (SUCCEEDED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "succeeds", hr);
}
AssertionResult IsHRESULTFailure(const char* expr, long hr) { // NOLINT
if (FAILED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "fails", hr);
}
#endif // GTEST_OS_WINDOWS
// Utility functions for encoding Unicode text (wide strings) in
// UTF-8.
// A Unicode code-point can have upto 21 bits, and is encoded in UTF-8
// like this:
//
// Code-point length Encoding
// 0 - 7 bits 0xxxxxxx
// 8 - 11 bits 110xxxxx 10xxxxxx
// 12 - 16 bits 1110xxxx 10xxxxxx 10xxxxxx
// 17 - 21 bits 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
// The maximum code-point a one-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint1 = (static_cast<UInt32>(1) << 7) - 1;
// The maximum code-point a two-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint2 = (static_cast<UInt32>(1) << (5 + 6)) - 1;
// The maximum code-point a three-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint3 = (static_cast<UInt32>(1) << (4 + 2*6)) - 1;
// The maximum code-point a four-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint4 = (static_cast<UInt32>(1) << (3 + 3*6)) - 1;
// Chops off the n lowest bits from a bit pattern. Returns the n
// lowest bits. As a side effect, the original bit pattern will be
// shifted to the right by n bits.
inline UInt32 ChopLowBits(UInt32* bits, int n) {
const UInt32 low_bits = *bits & ((static_cast<UInt32>(1) << n) - 1);
*bits >>= n;
return low_bits;
}
// Converts a Unicode code-point to its UTF-8 encoding.
String ToUtf8String(wchar_t wchar) {
char str[5] = {}; // Initializes str to all '\0' characters.
UInt32 code = static_cast<UInt32>(wchar);
if (code <= kMaxCodePoint1) {
str[0] = static_cast<char>(code); // 0xxxxxxx
} else if (code <= kMaxCodePoint2) {
str[1] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xC0 | code); // 110xxxxx
} else if (code <= kMaxCodePoint3) {
str[2] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xE0 | code); // 1110xxxx
} else if (code <= kMaxCodePoint4) {
str[3] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[2] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xF0 | code); // 11110xxx
} else {
return String::Format("(Invalid Unicode 0x%llX)",
static_cast<UInt64>(wchar));
}
return String(str);
}
// Converts a wide C string to a String using the UTF-8 encoding.
// NULL will be converted to "(null)".
String String::ShowWideCString(const wchar_t * wide_c_str) {
if (wide_c_str == NULL) return String("(null)");
StrStream ss;
while (*wide_c_str) {
ss << internal::ToUtf8String(*wide_c_str++);
}
return internal::StrStreamToString(&ss);
}
// Similar to ShowWideCString(), except that this function encloses
// the converted string in double quotes.
String String::ShowWideCStringQuoted(const wchar_t* wide_c_str) {
if (wide_c_str == NULL) return String("(null)");
return String::Format("L\"%s\"",
String::ShowWideCString(wide_c_str).c_str());
}
// Compares two wide C strings. Returns true iff they have the same
// content.
//
// Unlike wcscmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::WideCStringEquals(const wchar_t * lhs, const wchar_t * rhs) {
if (lhs == NULL) return rhs == NULL;
if (rhs == NULL) return false;
return wcscmp(lhs, rhs) == 0;
}
// Helper function for *_STREQ on wide strings.
AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const wchar_t* expected,
const wchar_t* actual) {
if (String::WideCStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowWideCStringQuoted(expected),
String::ShowWideCStringQuoted(actual),
false);
}
// Helper function for *_STRNE on wide strings.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const wchar_t* s1,
const wchar_t* s2) {
if (!String::WideCStringEquals(s1, s2)) {
return AssertionSuccess();
}
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << "), actual: "
<< String::ShowWideCStringQuoted(s1)
<< " vs " << String::ShowWideCStringQuoted(s2);
return AssertionFailure(msg);
}
// Compares two C strings, ignoring case. Returns true iff they have
// the same content.
//
// Unlike strcasecmp(), this function can handle NULL argument(s). A
// NULL C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CaseInsensitiveCStringEquals(const char * lhs, const char * rhs) {
if ( lhs == NULL ) return rhs == NULL;
if ( rhs == NULL ) return false;
#ifdef GTEST_OS_WINDOWS
return _stricmp(lhs, rhs) == 0;
#else // GTEST_OS_WINDOWS
return strcasecmp(lhs, rhs) == 0;
#endif // GTEST_OS_WINDOWS
}
// Constructs a String by copying a given number of chars from a
// buffer. E.g. String("hello", 3) will create the string "hel".
String::String(const char * buffer, size_t len) {
char * const temp = new char[ len + 1 ];
memcpy(temp, buffer, len);
temp[ len ] = '\0';
c_str_ = temp;
}
// Compares this with another String.
// Returns < 0 if this is less than rhs, 0 if this is equal to rhs, or > 0
// if this is greater than rhs.
int String::Compare(const String & rhs) const {
if ( c_str_ == NULL ) {
return rhs.c_str_ == NULL ? 0 : -1; // NULL < anything except NULL
}
return rhs.c_str_ == NULL ? 1 : strcmp(c_str_, rhs.c_str_);
}
// Returns true iff this String ends with the given suffix. *Any*
// String is considered to end with a NULL or empty suffix.
bool String::EndsWith(const char* suffix) const {
if (suffix == NULL || CStringEquals(suffix, "")) return true;
if (c_str_ == NULL) return false;
const size_t this_len = strlen(c_str_);
const size_t suffix_len = strlen(suffix);
return (this_len >= suffix_len) &&
CStringEquals(c_str_ + this_len - suffix_len, suffix);
}
// Returns true iff this String ends with the given suffix, ignoring case.
// Any String is considered to end with a NULL or empty suffix.
bool String::EndsWithCaseInsensitive(const char* suffix) const {
if (suffix == NULL || CStringEquals(suffix, "")) return true;
if (c_str_ == NULL) return false;
const size_t this_len = strlen(c_str_);
const size_t suffix_len = strlen(suffix);
return (this_len >= suffix_len) &&
CaseInsensitiveCStringEquals(c_str_ + this_len - suffix_len, suffix);
}
// Sets the 0-terminated C string this String object represents. The
// old string in this object is deleted, and this object will own a
// clone of the input string. This function copies only up to length
// bytes (plus a terminating null byte), or until the first null byte,
// whichever comes first.
//
// This function works even when the c_str parameter has the same
// value as that of the c_str_ field.
void String::Set(const char * c_str, size_t length) {
// Makes sure this works when c_str == c_str_
const char* const temp = CloneString(c_str, length);
delete[] c_str_;
c_str_ = temp;
}
// Assigns a C string to this object. Self-assignment works.
const String& String::operator=(const char* c_str) {
// Makes sure this works when c_str == c_str_
if (c_str != c_str_) {
delete[] c_str_;
c_str_ = CloneCString(c_str);
}
return *this;
}
// Formats a list of arguments to a String, using the same format
// spec string as for printf.
//
// We do not use the StringPrintf class as it is not universally
// available.
//
// The result is limited to 4096 characters (including the tailing 0).
// If 4096 characters are not enough to format the input,
// "<buffer exceeded>" is returned.
String String::Format(const char * format, ...) {
va_list args;
va_start(args, format);
char buffer[4096];
// MSVC 8 deprecates vsnprintf(), so we want to suppress warning
// 4996 (deprecated function) there.
#ifdef GTEST_OS_WINDOWS // We are on Windows.
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
const int size =
vsnprintf(buffer, sizeof(buffer)/sizeof(buffer[0]) - 1, format, args);
#pragma warning(pop) // Restores the warning state.
#else // We are on Linux or Mac OS.
const int size =
vsnprintf(buffer, sizeof(buffer)/sizeof(buffer[0]) - 1, format, args);
#endif // GTEST_OS_WINDOWS
va_end(args);
return String(size >= 0 ? buffer : "<buffer exceeded>");
}
// Converts the buffer in a StrStream to a String, converting NUL
// bytes to "\\0" along the way.
String StrStreamToString(StrStream* ss) {
#if GTEST_HAS_STD_STRING
const ::std::string& str = ss->str();
const char* const start = str.c_str();
const char* const end = start + str.length();
#else
const char* const start = ss->str();
const char* const end = start + ss->pcount();
#endif // GTEST_HAS_STD_STRING
// We need to use a helper StrStream to do this transformation
// because String doesn't support push_back().
StrStream helper;
for (const char* ch = start; ch != end; ++ch) {
if (*ch == '\0') {
helper << "\\0"; // Replaces NUL with "\\0";
} else {
helper.put(*ch);
}
}
#if GTEST_HAS_STD_STRING
return String(helper.str().c_str());
#else
const String str(helper.str(), helper.pcount());
helper.freeze(false);
ss->freeze(false);
return str;
#endif // GTEST_HAS_STD_STRING
}
// Appends the user-supplied message to the Google-Test-generated message.
String AppendUserMessage(const String& gtest_msg,
const Message& user_msg) {
// Appends the user message if it's non-empty.
const String user_msg_string = user_msg.GetString();
if (user_msg_string.empty()) {
return gtest_msg;
}
Message msg;
msg << gtest_msg << "\n" << user_msg_string;
return msg.GetString();
}
} // namespace internal
// Prints a TestPartResult object.
std::ostream& operator<<(std::ostream& os, const TestPartResult& result) {
return os << result.file_name() << ":"
<< result.line_number() << ": "
<< (result.type() == TPRT_SUCCESS ? "Success" :
result.type() == TPRT_FATAL_FAILURE ? "Fatal failure" :
"Non-fatal failure") << ":\n"
<< result.message() << std::endl;
}
namespace internal {
// class TestResult
// Creates an empty TestResult.
TestResult::TestResult()
: death_test_count_(0),
elapsed_time_(0) {
}
// D'tor.
TestResult::~TestResult() {
}
// Adds a test part result to the list.
void TestResult::AddTestPartResult(const TestPartResult& test_part_result) {
test_part_results_.PushBack(test_part_result);
}
// Adds a test property to the list. If a property with the same key as the
// supplied property is already represented, the value of this test_property
// replaces the old value for that key.
void TestResult::RecordProperty(const TestProperty& test_property) {
if (!ValidateTestProperty(test_property)) {
return;
}
MutexLock lock(&test_properites_mutex_);
ListNode<TestProperty>* const node_with_matching_key =
test_properties_.FindIf(TestPropertyKeyIs(test_property.key()));
if (node_with_matching_key == NULL) {
test_properties_.PushBack(test_property);
return;
}
TestProperty& property_with_matching_key = node_with_matching_key->element();
property_with_matching_key.SetValue(test_property.value());
}
// Adds a failure if the key is a reserved attribute of Google Test testcase tags.
// Returns true if the property is valid.
bool TestResult::ValidateTestProperty(const TestProperty& test_property) {
String key(test_property.key());
if (key == "name" || key == "status" || key == "time" || key == "classname") {
ADD_FAILURE()
<< "Reserved key used in RecordProperty(): "
<< key
<< " ('name', 'status', 'time', and 'classname' are reserved by "
<< GTEST_NAME << ")";
return false;
}
return true;
}
// Clears the object.
void TestResult::Clear() {
test_part_results_.Clear();
test_properties_.Clear();
death_test_count_ = 0;
elapsed_time_ = 0;
}
// Returns true iff the test part passed.
static bool TestPartPassed(const TestPartResult & result) {
return result.passed();
}
// Gets the number of successful test parts.
int TestResult::successful_part_count() const {
return test_part_results_.CountIf(TestPartPassed);
}
// Returns true iff the test part failed.
static bool TestPartFailed(const TestPartResult & result) {
return result.failed();
}
// Gets the number of failed test parts.
int TestResult::failed_part_count() const {
return test_part_results_.CountIf(TestPartFailed);
}
// Returns true iff the test part fatally failed.
static bool TestPartFatallyFailed(const TestPartResult & result) {
return result.fatally_failed();
}
// Returns true iff the test fatally failed.
bool TestResult::HasFatalFailure() const {
return test_part_results_.CountIf(TestPartFatallyFailed) > 0;
}
// Gets the number of all test parts. This is the sum of the number
// of successful test parts and the number of failed test parts.
int TestResult::total_part_count() const {
return test_part_results_.size();
}
} // namespace internal
// class Test
// Creates a Test object.
// The c'tor saves the values of all Google Test flags.
Test::Test()
: gtest_flag_saver_(new internal::GTestFlagSaver) {
}
// The d'tor restores the values of all Google Test flags.
Test::~Test() {
delete gtest_flag_saver_;
}
// Sets up the test fixture.
//
// A sub-class may override this.
void Test::SetUp() {
}
// Tears down the test fixture.
//
// A sub-class may override this.
void Test::TearDown() {
}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const char* key, const char* value) {
UnitTest::GetInstance()->RecordPropertyForCurrentTest(key, value);
}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const char* key, int value) {
Message value_message;
value_message << value;
RecordProperty(key, value_message.GetString().c_str());
}
#ifdef GTEST_OS_WINDOWS
// We are on Windows.
// Adds an "exception thrown" fatal failure to the current test.
static void AddExceptionThrownFailure(DWORD exception_code,
const char* location) {
Message message;
message << "Exception thrown with code 0x" << std::setbase(16) <<
exception_code << std::setbase(10) << " in " << location << ".";
UnitTest* const unit_test = UnitTest::GetInstance();
unit_test->AddTestPartResult(
TPRT_FATAL_FAILURE,
static_cast<const char *>(NULL),
// We have no info about the source file where the exception
// occurred.
-1, // We have no info on which line caused the exception.
message.GetString(),
internal::String(""));
}
#endif // GTEST_OS_WINDOWS
// Google Test requires all tests in the same test case to use the same test
// fixture class. This function checks if the current test has the
// same fixture class as the first test in the current test case. If
// yes, it returns true; otherwise it generates a Google Test failure and
// returns false.
bool Test::HasSameFixtureClass() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
const TestCase* const test_case = impl->current_test_case();
// Info about the first test in the current test case.
const internal::TestInfoImpl* const first_test_info =
test_case->test_info_list().Head()->element()->impl();
const internal::TypeId first_fixture_id = first_test_info->fixture_class_id();
const char* const first_test_name = first_test_info->name();
// Info about the current test.
const internal::TestInfoImpl* const this_test_info =
impl->current_test_info()->impl();
const internal::TypeId this_fixture_id = this_test_info->fixture_class_id();
const char* const this_test_name = this_test_info->name();
if (this_fixture_id != first_fixture_id) {
// Is the first test defined using TEST?
const bool first_is_TEST = first_fixture_id == internal::GetTypeId<Test>();
// Is this test defined using TEST?
const bool this_is_TEST = this_fixture_id == internal::GetTypeId<Test>();
if (first_is_TEST || this_is_TEST) {
// The user mixed TEST and TEST_F in this test case - we'll tell
// him/her how to fix it.
// Gets the name of the TEST and the name of the TEST_F. Note
// that first_is_TEST and this_is_TEST cannot both be true, as
// the fixture IDs are different for the two tests.
const char* const TEST_name =
first_is_TEST ? first_test_name : this_test_name;
const char* const TEST_F_name =
first_is_TEST ? this_test_name : first_test_name;
ADD_FAILURE()
<< "All tests in the same test case must use the same test fixture\n"
<< "class, so mixing TEST_F and TEST in the same test case is\n"
<< "illegal. In test case " << this_test_info->test_case_name()
<< ",\n"
<< "test " << TEST_F_name << " is defined using TEST_F but\n"
<< "test " << TEST_name << " is defined using TEST. You probably\n"
<< "want to change the TEST to TEST_F or move it to another test\n"
<< "case.";
} else {
// The user defined two fixture classes with the same name in
// two namespaces - we'll tell him/her how to fix it.
ADD_FAILURE()
<< "All tests in the same test case must use the same test fixture\n"
<< "class. However, in test case "
<< this_test_info->test_case_name() << ",\n"
<< "you defined test " << first_test_name
<< " and test " << this_test_name << "\n"
<< "using two different test fixture classes. This can happen if\n"
<< "the two classes are from different namespaces or translation\n"
<< "units and have the same name. You should probably rename one\n"
<< "of the classes to put the tests into different test cases.";
}
return false;
}
return true;
}
// Runs the test and updates the test result.
void Test::Run() {
if (!HasSameFixtureClass()) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
#ifdef GTEST_OS_WINDOWS
// We are on Windows.
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
SetUp();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "SetUp()");
}
// We will run the test only if SetUp() had no fatal failure.
if (!HasFatalFailure()) {
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
TestBody();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "the test body");
}
}
// However, we want to clean up as much as possible. Hence we will
// always call TearDown(), even if SetUp() or the test body has
// failed.
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
TearDown();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "TearDown()");
}
#else // We are on Linux or Mac - exceptions are disabled.
impl->os_stack_trace_getter()->UponLeavingGTest();
SetUp();
// We will run the test only if SetUp() was successful.
if (!HasFatalFailure()) {
impl->os_stack_trace_getter()->UponLeavingGTest();
TestBody();
}
// However, we want to clean up as much as possible. Hence we will
// always call TearDown(), even if SetUp() or the test body has
// failed.
impl->os_stack_trace_getter()->UponLeavingGTest();
TearDown();
#endif // GTEST_OS_WINDOWS
}
// Returns true iff the current test has a fatal failure.
bool Test::HasFatalFailure() {
return internal::GetUnitTestImpl()->current_test_result()->HasFatalFailure();
}
// class TestInfo
// Constructs a TestInfo object.
TestInfo::TestInfo(const char* test_case_name,
const char* name,
internal::TypeId fixture_class_id,
TestMaker maker) {
impl_ = new internal::TestInfoImpl(this, test_case_name, name,
fixture_class_id, maker);
}
// Destructs a TestInfo object.
TestInfo::~TestInfo() {
delete impl_;
}
// Creates a TestInfo object and registers it with the UnitTest
// singleton; returns the created object.
//
// Arguments:
//
// test_case_name: name of the test case
// name: name of the test
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
// maker: pointer to the function that creates a test object
TestInfo* TestInfo::MakeAndRegisterInstance(
const char* test_case_name,
const char* name,
internal::TypeId fixture_class_id,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc,
TestMaker maker) {
TestInfo* const test_info =
new TestInfo(test_case_name, name, fixture_class_id, maker);
internal::GetUnitTestImpl()->AddTestInfo(set_up_tc, tear_down_tc, test_info);
return test_info;
}
// Returns the test case name.
const char* TestInfo::test_case_name() const {
return impl_->test_case_name();
}
// Returns the test name.
const char* TestInfo::name() const {
return impl_->name();
}
// Returns true if this test should run.
bool TestInfo::should_run() const { return impl_->should_run(); }
// Returns the result of the test.
const internal::TestResult* TestInfo::result() const { return impl_->result(); }
// Increments the number of death tests encountered in this test so
// far.
int TestInfo::increment_death_test_count() {
return impl_->result()->increment_death_test_count();
}
namespace {
// A predicate that checks the test name of a TestInfo against a known
// value.
//
// This is used for implementation of the TestCase class only. We put
// it in the anonymous namespace to prevent polluting the outer
// namespace.
//
// TestNameIs is copyable.
class TestNameIs {
public:
// Constructor.
//
// TestNameIs has NO default constructor.
explicit TestNameIs(const char* name)
: name_(name) {}
// Returns true iff the test name of test_info matches name_.
bool operator()(const TestInfo * test_info) const {
return test_info && internal::String(test_info->name()).Compare(name_) == 0;
}
private:
internal::String name_;
};
} // namespace
// Finds and returns a TestInfo with the given name. If one doesn't
// exist, returns NULL.
TestInfo * TestCase::GetTestInfo(const char* test_name) {
// Can we find a TestInfo with the given name?
internal::ListNode<TestInfo *> * const node = test_info_list_->FindIf(
TestNameIs(test_name));
// Returns the TestInfo found.
return node ? node->element() : NULL;
}
namespace internal {
// Creates the test object, runs it, records its result, and then
// deletes it.
void TestInfoImpl::Run() {
if (!should_run_) return;
// Tells UnitTest where to store test result.
UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_info(parent_);
// Notifies the unit test event listener that a test is about to
// start.
UnitTestEventListenerInterface* const result_printer =
impl->result_printer();
result_printer->OnTestStart(parent_);
const TimeInMillis start = GetTimeInMillis();
impl->os_stack_trace_getter()->UponLeavingGTest();
#ifdef GTEST_OS_WINDOWS
// We are on Windows.
Test* test = NULL;
__try {
// Creates the test object.
test = (*maker_)();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(),
"the test fixture's constructor");
return;
}
#else // We are on Linux or Mac OS - exceptions are disabled.
// TODO(wan): If test->Run() throws, test won't be deleted. This is
// not a problem now as we don't use exceptions. If we were to
// enable exceptions, we should revise the following to be
// exception-safe.
// Creates the test object.
Test* test = (*maker_)();
#endif // GTEST_OS_WINDOWS
// Runs the test only if the constructor of the test fixture didn't
// generate a fatal failure.
if (!Test::HasFatalFailure()) {
test->Run();
}
// Deletes the test object.
impl->os_stack_trace_getter()->UponLeavingGTest();
delete test;
test = NULL;
result_.set_elapsed_time(GetTimeInMillis() - start);
// Notifies the unit test event listener that a test has just finished.
result_printer->OnTestEnd(parent_);
// Tells UnitTest to stop associating assertion results to this
// test.
impl->set_current_test_info(NULL);
}
} // namespace internal
// class TestCase
// Gets the number of successful tests in this test case.
int TestCase::successful_test_count() const {
return test_info_list_->CountIf(TestPassed);
}
// Gets the number of failed tests in this test case.
int TestCase::failed_test_count() const {
return test_info_list_->CountIf(TestFailed);
}
int TestCase::disabled_test_count() const {
return test_info_list_->CountIf(TestDisabled);
}
// Get the number of tests in this test case that should run.
int TestCase::test_to_run_count() const {
return test_info_list_->CountIf(ShouldRunTest);
}
// Gets the number of all tests.
int TestCase::total_test_count() const {
return test_info_list_->size();
}
// Creates a TestCase with the given name.
//
// Arguments:
//
// name: name of the test case
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
TestCase::TestCase(const char* name,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc)
: name_(name),
set_up_tc_(set_up_tc),
tear_down_tc_(tear_down_tc),
should_run_(false),
elapsed_time_(0) {
test_info_list_ = new internal::List<TestInfo *>;
}
// Destructor of TestCase.
TestCase::~TestCase() {
// Deletes every Test in the collection.
test_info_list_->ForEach(internal::Delete<TestInfo>);
// Then deletes the Test collection.
delete test_info_list_;
test_info_list_ = NULL;
}
// Adds a test to this test case. Will delete the test upon
// destruction of the TestCase object.
void TestCase::AddTestInfo(TestInfo * test_info) {
test_info_list_->PushBack(test_info);
}
// Runs every test in this TestCase.
void TestCase::Run() {
if (!should_run_) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_case(this);
UnitTestEventListenerInterface * const result_printer =
impl->result_printer();
result_printer->OnTestCaseStart(this);
impl->os_stack_trace_getter()->UponLeavingGTest();
set_up_tc_();
const internal::TimeInMillis start = internal::GetTimeInMillis();
test_info_list_->ForEach(internal::TestInfoImpl::RunTest);
elapsed_time_ = internal::GetTimeInMillis() - start;
impl->os_stack_trace_getter()->UponLeavingGTest();
tear_down_tc_();
result_printer->OnTestCaseEnd(this);
impl->set_current_test_case(NULL);
}
// Clears the results of all tests in this test case.
void TestCase::ClearResult() {
test_info_list_->ForEach(internal::TestInfoImpl::ClearTestResult);
}
// class UnitTestEventListenerInterface
// The virtual d'tor.
UnitTestEventListenerInterface::~UnitTestEventListenerInterface() {
}
// A result printer that never prints anything. Used in the child process
// of an exec-style death test to avoid needless output clutter.
class NullUnitTestResultPrinter : public UnitTestEventListenerInterface {};
// Formats a countable noun. Depending on its quantity, either the
// singular form or the plural form is used. e.g.
//
// FormatCountableNoun(1, "formula", "formuli") returns "1 formula".
// FormatCountableNoun(5, "book", "books") returns "5 books".
static internal::String FormatCountableNoun(int count,
const char * singular_form,
const char * plural_form) {
return internal::String::Format("%d %s", count,
count == 1 ? singular_form : plural_form);
}
// Formats the count of tests.
static internal::String FormatTestCount(int test_count) {
return FormatCountableNoun(test_count, "test", "tests");
}
// Formats the count of test cases.
static internal::String FormatTestCaseCount(int test_case_count) {
return FormatCountableNoun(test_case_count, "test case", "test cases");
}
// Converts a TestPartResultType enum to human-friendly string
// representation. Both TPRT_NONFATAL_FAILURE and TPRT_FATAL_FAILURE
// are translated to "Failure", as the user usually doesn't care about
// the difference between the two when viewing the test result.
static const char * TestPartResultTypeToString(TestPartResultType type) {
switch (type) {
case TPRT_SUCCESS:
return "Success";
case TPRT_NONFATAL_FAILURE:
case TPRT_FATAL_FAILURE:
return "Failure";
}
return "Unknown result type";
}
// Prints a TestPartResult.
static void PrintTestPartResult(
const TestPartResult & test_part_result) {
const char * const file_name = test_part_result.file_name();
printf("%s", file_name == NULL ? "unknown file" : file_name);
if (test_part_result.line_number() >= 0) {
printf(":%d", test_part_result.line_number());
}
printf(": %s\n", TestPartResultTypeToString(test_part_result.type()));
printf("%s\n", test_part_result.message());
fflush(stdout);
}
// class PrettyUnitTestResultPrinter
namespace internal {
enum GTestColor {
COLOR_RED,
COLOR_GREEN,
COLOR_YELLOW
};
#ifdef _WIN32
// Returns the character attribute for the given color.
WORD GetColorAttribute(GTestColor color) {
switch (color) {
case COLOR_RED: return FOREGROUND_RED;
case COLOR_GREEN: return FOREGROUND_GREEN;
case COLOR_YELLOW: return FOREGROUND_RED | FOREGROUND_GREEN;
}
return 0;
}
#else
// Returns the ANSI color code for the given color.
const char* GetAnsiColorCode(GTestColor color) {
switch (color) {
case COLOR_RED: return "1";
case COLOR_GREEN: return "2";
case COLOR_YELLOW: return "3";
};
return NULL;
}
#endif // _WIN32
// Returns true iff Google Test should use colors in the output.
bool ShouldUseColor(bool stdout_is_tty) {
const char* const gtest_color = GTEST_FLAG(color).c_str();
if (String::CaseInsensitiveCStringEquals(gtest_color, "auto")) {
#ifdef _WIN32
// On Windows the TERM variable is usually not set, but the
// console there does support colors.
return stdout_is_tty;
#else
// On non-Windows platforms, we rely on the TERM variable.
const char* const term = GetEnv("TERM");
const bool term_supports_color =
String::CStringEquals(term, "xterm") ||
String::CStringEquals(term, "xterm-color") ||
String::CStringEquals(term, "cygwin");
return stdout_is_tty && term_supports_color;
#endif // _WIN32
}
return String::CaseInsensitiveCStringEquals(gtest_color, "yes") ||
String::CaseInsensitiveCStringEquals(gtest_color, "true") ||
String::CaseInsensitiveCStringEquals(gtest_color, "t") ||
String::CStringEquals(gtest_color, "1");
// We take "yes", "true", "t", and "1" as meaning "yes". If the
// value is neither one of these nor "auto", we treat it as "no" to
// be conservative.
}
// Helpers for printing colored strings to stdout. Note that on Windows, we
// cannot simply emit special characters and have the terminal change colors.
// This routine must actually emit the characters rather than return a string
// that would be colored when printed, as can be done on Linux.
void ColoredPrintf(GTestColor color, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
static const bool use_color = ShouldUseColor(isatty(fileno(stdout)) != 0);
// The '!= 0' comparison is necessary to satisfy MSVC 7.1.
if (!use_color) {
vprintf(fmt, args);
va_end(args);
return;
}
#ifdef _WIN32
const HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE);
// Gets the current text color.
CONSOLE_SCREEN_BUFFER_INFO buffer_info;
GetConsoleScreenBufferInfo(stdout_handle, &buffer_info);
const WORD old_color_attrs = buffer_info.wAttributes;
SetConsoleTextAttribute(stdout_handle,
GetColorAttribute(color) | FOREGROUND_INTENSITY);
vprintf(fmt, args);
// Restores the text color.
SetConsoleTextAttribute(stdout_handle, old_color_attrs);
#else
printf("\033[0;3%sm", GetAnsiColorCode(color));
vprintf(fmt, args);
printf("\033[m"); // Resets the terminal to default.
#endif // _WIN32
va_end(args);
}
} // namespace internal
using internal::ColoredPrintf;
using internal::COLOR_RED;
using internal::COLOR_GREEN;
using internal::COLOR_YELLOW;
// This class implements the UnitTestEventListenerInterface interface.
//
// Class PrettyUnitTestResultPrinter is copyable.
class PrettyUnitTestResultPrinter : public UnitTestEventListenerInterface {
public:
PrettyUnitTestResultPrinter() {}
static void PrintTestName(const char * test_case, const char * test) {
printf("%s.%s", test_case, test);
}
// The following methods override what's in the
// UnitTestEventListenerInterface class.
virtual void OnUnitTestStart(const UnitTest * unit_test);
virtual void OnGlobalSetUpStart(const UnitTest*);
virtual void OnTestCaseStart(const TestCase * test_case);
virtual void OnTestStart(const TestInfo * test_info);
virtual void OnNewTestPartResult(const TestPartResult * result);
virtual void OnTestEnd(const TestInfo * test_info);
virtual void OnGlobalTearDownStart(const UnitTest*);
virtual void OnUnitTestEnd(const UnitTest * unit_test);
private:
internal::String test_case_name_;
};
// Called before the unit test starts.
void PrettyUnitTestResultPrinter::OnUnitTestStart(
const UnitTest * unit_test) {
const char * const filter = GTEST_FLAG(filter).c_str();
// Prints the filter if it's not *. This reminds the user that some
// tests may be skipped.
if (!internal::String::CStringEquals(filter, kUniversalFilter)) {
ColoredPrintf(COLOR_YELLOW,
"Note: %s filter = %s\n", GTEST_NAME, filter);
}
const internal::UnitTestImpl* const impl = unit_test->impl();
ColoredPrintf(COLOR_GREEN, "[==========] ");
printf("Running %s from %s.\n",
FormatTestCount(impl->test_to_run_count()).c_str(),
FormatTestCaseCount(impl->test_case_to_run_count()).c_str());
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnGlobalSetUpStart(const UnitTest*) {
ColoredPrintf(COLOR_GREEN, "[----------] ");
printf("Global test environment set-up.\n");
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnTestCaseStart(
const TestCase * test_case) {
test_case_name_ = test_case->name();
const internal::String counts =
FormatCountableNoun(test_case->test_to_run_count(), "test", "tests");
ColoredPrintf(COLOR_GREEN, "[----------] ");
printf("%s from %s\n", counts.c_str(), test_case_name_.c_str());
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnTestStart(const TestInfo * test_info) {
ColoredPrintf(COLOR_GREEN, "[ RUN ] ");
PrintTestName(test_case_name_.c_str(), test_info->name());
printf("\n");
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnTestEnd(const TestInfo * test_info) {
if (test_info->result()->Passed()) {
ColoredPrintf(COLOR_GREEN, "[ OK ] ");
} else {
ColoredPrintf(COLOR_RED, "[ FAILED ] ");
}
PrintTestName(test_case_name_.c_str(), test_info->name());
printf("\n");
fflush(stdout);
}
// Called after an assertion failure.
void PrettyUnitTestResultPrinter::OnNewTestPartResult(
const TestPartResult * result) {
// If the test part succeeded, we don't need to do anything.
if (result->type() == TPRT_SUCCESS)
return;
// Print failure message from the assertion (e.g. expected this and got that).
PrintTestPartResult(*result);
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnGlobalTearDownStart(const UnitTest*) {
ColoredPrintf(COLOR_GREEN, "[----------] ");
printf("Global test environment tear-down\n");
fflush(stdout);
}
namespace internal {
// Internal helper for printing the list of failed tests.
static void PrintFailedTestsPretty(const UnitTestImpl* impl) {
const int failed_test_count = impl->failed_test_count();
if (failed_test_count == 0) {
return;
}
for (const internal::ListNode<TestCase*>* node = impl->test_cases()->Head();
node != NULL; node = node->next()) {
const TestCase* const tc = node->element();
if (!tc->should_run() || (tc->failed_test_count() == 0)) {
continue;
}
for (const internal::ListNode<TestInfo*>* tinode =
tc->test_info_list().Head();
tinode != NULL; tinode = tinode->next()) {
const TestInfo* const ti = tinode->element();
if (!tc->ShouldRunTest(ti) || tc->TestPassed(ti)) {
continue;
}
ColoredPrintf(COLOR_RED, "[ FAILED ] ");
printf("%s.%s\n", ti->test_case_name(), ti->name());
}
}
}
} // namespace internal
void PrettyUnitTestResultPrinter::OnUnitTestEnd(
const UnitTest * unit_test) {
const internal::UnitTestImpl* const impl = unit_test->impl();
ColoredPrintf(COLOR_GREEN, "[==========] ");
printf("%s from %s ran.\n",
FormatTestCount(impl->test_to_run_count()).c_str(),
FormatTestCaseCount(impl->test_case_to_run_count()).c_str());
ColoredPrintf(COLOR_GREEN, "[ PASSED ] ");
printf("%s.\n", FormatTestCount(impl->successful_test_count()).c_str());
int num_failures = impl->failed_test_count();
if (!impl->Passed()) {
const int failed_test_count = impl->failed_test_count();
ColoredPrintf(COLOR_RED, "[ FAILED ] ");
printf("%s, listed below:\n", FormatTestCount(failed_test_count).c_str());
internal::PrintFailedTestsPretty(impl);
printf("\n%2d FAILED %s\n", num_failures,
num_failures == 1 ? "TEST" : "TESTS");
}
int num_disabled = impl->disabled_test_count();
if (num_disabled) {
if (!num_failures) {
printf("\n"); // Add a spacer if no FAILURE banner is displayed.
}
ColoredPrintf(COLOR_YELLOW,
" YOU HAVE %d DISABLED %s\n\n",
num_disabled,
num_disabled == 1 ? "TEST" : "TESTS");
}
// Ensure that Google Test output is printed before, e.g., heapchecker output.
fflush(stdout);
}
// End PrettyUnitTestResultPrinter
// class UnitTestEventsRepeater
//
// This class forwards events to other event listeners.
class UnitTestEventsRepeater : public UnitTestEventListenerInterface {
public:
typedef internal::List<UnitTestEventListenerInterface *> Listeners;
typedef internal::ListNode<UnitTestEventListenerInterface *> ListenersNode;
UnitTestEventsRepeater() {}
virtual ~UnitTestEventsRepeater();
void AddListener(UnitTestEventListenerInterface *listener);
virtual void OnUnitTestStart(const UnitTest* unit_test);
virtual void OnUnitTestEnd(const UnitTest* unit_test);
virtual void OnGlobalSetUpStart(const UnitTest* unit_test);
virtual void OnGlobalSetUpEnd(const UnitTest* unit_test);
virtual void OnGlobalTearDownStart(const UnitTest* unit_test);
virtual void OnGlobalTearDownEnd(const UnitTest* unit_test);
virtual void OnTestCaseStart(const TestCase* test_case);
virtual void OnTestCaseEnd(const TestCase* test_case);
virtual void OnTestStart(const TestInfo* test_info);
virtual void OnTestEnd(const TestInfo* test_info);
virtual void OnNewTestPartResult(const TestPartResult* result);
private:
Listeners listeners_;
GTEST_DISALLOW_COPY_AND_ASSIGN(UnitTestEventsRepeater);
};
UnitTestEventsRepeater::~UnitTestEventsRepeater() {
for (ListenersNode* listener = listeners_.Head();
listener != NULL;
listener = listener->next()) {
delete listener->element();
}
}
void UnitTestEventsRepeater::AddListener(
UnitTestEventListenerInterface *listener) {
listeners_.PushBack(listener);
}
// Since the methods are identical, use a macro to reduce boilerplate.
// This defines a member that repeats the call to all listeners.
#define GTEST_REPEATER_METHOD(Name, Type) \
void UnitTestEventsRepeater::Name(const Type* parameter) { \
for (ListenersNode* listener = listeners_.Head(); \
listener != NULL; \
listener = listener->next()) { \
listener->element()->Name(parameter); \
} \
}
GTEST_REPEATER_METHOD(OnUnitTestStart, UnitTest)
GTEST_REPEATER_METHOD(OnUnitTestEnd, UnitTest)
GTEST_REPEATER_METHOD(OnGlobalSetUpStart, UnitTest)
GTEST_REPEATER_METHOD(OnGlobalSetUpEnd, UnitTest)
GTEST_REPEATER_METHOD(OnGlobalTearDownStart, UnitTest)
GTEST_REPEATER_METHOD(OnGlobalTearDownEnd, UnitTest)
GTEST_REPEATER_METHOD(OnTestCaseStart, TestCase)
GTEST_REPEATER_METHOD(OnTestCaseEnd, TestCase)
GTEST_REPEATER_METHOD(OnTestStart, TestInfo)
GTEST_REPEATER_METHOD(OnTestEnd, TestInfo)
GTEST_REPEATER_METHOD(OnNewTestPartResult, TestPartResult)
#undef GTEST_REPEATER_METHOD
// End PrettyUnitTestResultPrinter
// This class generates an XML output file.
class XmlUnitTestResultPrinter : public UnitTestEventListenerInterface {
public:
explicit XmlUnitTestResultPrinter(const char* output_file);
virtual void OnUnitTestEnd(const UnitTest* unit_test);
private:
// Is c a whitespace character that is normalized to a space character
// when it appears in an XML attribute value?
static bool IsNormalizableWhitespace(char c) {
return c == 0x9 || c == 0xA || c == 0xD;
}
// May c appear in a well-formed XML document?
static bool IsValidXmlCharacter(char c) {
return IsNormalizableWhitespace(c) || c >= 0x20;
}
// Returns an XML-escaped copy of the input string str. If
// is_attribute is true, the text is meant to appear as an attribute
// value, and normalizable whitespace is preserved by replacing it
// with character references.
static internal::String EscapeXml(const char* str,
bool is_attribute);
// Convenience wrapper around EscapeXml when str is an attribute value.
static internal::String EscapeXmlAttribute(const char* str) {
return EscapeXml(str, true);
}
// Convenience wrapper around EscapeXml when str is not an attribute value.
static internal::String EscapeXmlText(const char* str) {
return EscapeXml(str, false);
}
// Prints an XML representation of a TestInfo object.
static void PrintXmlTestInfo(FILE* out,
const char* test_case_name,
const TestInfo* test_info);
// Prints an XML representation of a TestCase object
static void PrintXmlTestCase(FILE* out, const TestCase* test_case);
// Prints an XML summary of unit_test to output stream out.
static void PrintXmlUnitTest(FILE* out, const UnitTest* unit_test);
// Produces a string representing the test properties in a result as space
// delimited XML attributes based on the property key="value" pairs.
// When the String is not empty, it includes a space at the beginning,
// to delimit this attribute from prior attributes.
static internal::String TestPropertiesAsXmlAttributes(
const internal::TestResult* result);
// The output file.
const internal::String output_file_;
GTEST_DISALLOW_COPY_AND_ASSIGN(XmlUnitTestResultPrinter);
};
// Creates a new XmlUnitTestResultPrinter.
XmlUnitTestResultPrinter::XmlUnitTestResultPrinter(const char* output_file)
: output_file_(output_file) {
if (output_file_.c_str() == NULL || output_file_.empty()) {
fprintf(stderr, "XML output file may not be null\n");
fflush(stderr);
exit(EXIT_FAILURE);
}
}
// Called after the unit test ends.
void XmlUnitTestResultPrinter::OnUnitTestEnd(const UnitTest* unit_test) {
FILE* xmlout = NULL;
internal::FilePath output_file(output_file_);
internal::FilePath output_dir(output_file.RemoveFileName());
if (output_dir.CreateDirectoriesRecursively()) {
// MSVC 8 deprecates fopen(), so we want to suppress warning 4996
// (deprecated function) there.
#ifdef GTEST_OS_WINDOWS
// We are on Windows.
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
xmlout = fopen(output_file_.c_str(), "w");
#pragma warning(pop) // Restores the warning state.
#else // We are on Linux or Mac OS.
xmlout = fopen(output_file_.c_str(), "w");
#endif // GTEST_OS_WINDOWS
}
if (xmlout == NULL) {
// TODO(wan): report the reason of the failure.
//
// We don't do it for now as:
//
// 1. There is no urgent need for it.
// 2. It's a bit involved to make the errno variable thread-safe on
// all three operating systems (Linux, Windows, and Mac OS).
// 3. To interpret the meaning of errno in a thread-safe way,
// we need the strerror_r() function, which is not available on
// Windows.
fprintf(stderr,
"Unable to open file \"%s\"\n",
output_file_.c_str());
fflush(stderr);
exit(EXIT_FAILURE);
}
PrintXmlUnitTest(xmlout, unit_test);
fclose(xmlout);
}
// Returns an XML-escaped copy of the input string str. If is_attribute
// is true, the text is meant to appear as an attribute value, and
// normalizable whitespace is preserved by replacing it with character
// references.
//
// Invalid XML characters in str, if any, are stripped from the output.
// It is expected that most, if not all, of the text processed by this
// module will consist of ordinary English text.
// If this module is ever modified to produce version 1.1 XML output,
// most invalid characters can be retained using character references.
// TODO(wan): It might be nice to have a minimally invasive, human-readable
// escaping scheme for invalid characters, rather than dropping them.
internal::String XmlUnitTestResultPrinter::EscapeXml(const char* str,
bool is_attribute) {
Message m;
if (str != NULL) {
for (const char* src = str; *src; ++src) {
switch (*src) {
case '<':
m << "<";
break;
case '>':
m << ">";
break;
case '&':
m << "&";
break;
case '\'':
if (is_attribute)
m << "'";
else
m << '\'';
break;
case '"':
if (is_attribute)
m << """;
else
m << '"';
break;
default:
if (IsValidXmlCharacter(*src)) {
if (is_attribute && IsNormalizableWhitespace(*src))
m << internal::String::Format("&#x%02X;", unsigned(*src));
else
m << *src;
}
break;
}
}
}
return m.GetString();
}
// The following routines generate an XML representation of a UnitTest
// object.
//
// This is how Google Test concepts map to the DTD:
//
// <testsuite name="AllTests"> <-- corresponds to a UnitTest object
// <testsuite name="testcase-name"> <-- corresponds to a TestCase object
// <testcase name="test-name"> <-- corresponds to a TestInfo object
// <failure message="..." />
// <failure message="..." /> <-- individual assertion failures
// <failure message="..." />
// </testcase>
// </testsuite>
// </testsuite>
// Prints an XML representation of a TestInfo object.
// TODO(wan): There is also value in printing properties with the plain printer.
void XmlUnitTestResultPrinter::PrintXmlTestInfo(FILE* out,
const char* test_case_name,
const TestInfo* test_info) {
const internal::TestResult * const result = test_info->result();
const internal::List<TestPartResult> &results = result->test_part_results();
fprintf(out,
" <testcase name=\"%s\" status=\"%s\" time=\"%s\" "
"classname=\"%s\"%s",
EscapeXmlAttribute(test_info->name()).c_str(),
test_info->should_run() ? "run" : "notrun",
internal::StreamableToString(result->elapsed_time()).c_str(),
EscapeXmlAttribute(test_case_name).c_str(),
TestPropertiesAsXmlAttributes(result).c_str());
int failures = 0;
for (const internal::ListNode<TestPartResult>* part_node = results.Head();
part_node != NULL;
part_node = part_node->next()) {
const TestPartResult& part = part_node->element();
if (part.failed()) {
const internal::String message =
internal::String::Format("%s:%d\n%s", part.file_name(),
part.line_number(), part.message());
if (++failures == 1)
fprintf(out, ">\n");
fprintf(out,
" <failure message=\"%s\" type=\"\"/>\n",
EscapeXmlAttribute(message.c_str()).c_str());
}
}
if (failures == 0)
fprintf(out, " />\n");
else
fprintf(out, " </testcase>\n");
}
// Prints an XML representation of a TestCase object
void XmlUnitTestResultPrinter::PrintXmlTestCase(FILE* out,
const TestCase* test_case) {
fprintf(out,
" <testsuite name=\"%s\" tests=\"%d\" failures=\"%d\" "
"disabled=\"%d\" ",
EscapeXmlAttribute(test_case->name()).c_str(),
test_case->total_test_count(),
test_case->failed_test_count(),
test_case->disabled_test_count());
fprintf(out,
"errors=\"0\" time=\"%s\">\n",
internal::StreamableToString(test_case->elapsed_time()).c_str());
for (const internal::ListNode<TestInfo*>* info_node =
test_case->test_info_list().Head();
info_node != NULL;
info_node = info_node->next()) {
PrintXmlTestInfo(out, test_case->name(), info_node->element());
}
fprintf(out, " </testsuite>\n");
}
// Prints an XML summary of unit_test to output stream out.
void XmlUnitTestResultPrinter::PrintXmlUnitTest(FILE* out,
const UnitTest* unit_test) {
const internal::UnitTestImpl* const impl = unit_test->impl();
fprintf(out, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
fprintf(out,
"<testsuite tests=\"%d\" failures=\"%d\" disabled=\"%d\" "
"errors=\"0\" time=\"%s\" ",
impl->total_test_count(),
impl->failed_test_count(),
impl->disabled_test_count(),
internal::StreamableToString(impl->elapsed_time()).c_str());
fprintf(out, "name=\"AllTests\">\n");
for (const internal::ListNode<TestCase*>* case_node =
impl->test_cases()->Head();
case_node != NULL;
case_node = case_node->next()) {
PrintXmlTestCase(out, case_node->element());
}
fprintf(out, "</testsuite>\n");
}
// Produces a string representing the test properties in a result as space
// delimited XML attributes based on the property key="value" pairs.
internal::String XmlUnitTestResultPrinter::TestPropertiesAsXmlAttributes(
const internal::TestResult* result) {
using internal::TestProperty;
Message attributes;
const internal::List<TestProperty>& properties = result->test_properties();
for (const internal::ListNode<TestProperty>* property_node =
properties.Head();
property_node != NULL;
property_node = property_node->next()) {
const TestProperty& property = property_node->element();
attributes << " " << property.key() << "="
<< "\"" << EscapeXmlAttribute(property.value()) << "\"";
}
return attributes.GetString();
}
// End XmlUnitTestResultPrinter
namespace internal {
// Class ScopedTrace
// Pushes the given source file location and message onto a per-thread
// trace stack maintained by Google Test.
// L < UnitTest::mutex_
ScopedTrace::ScopedTrace(const char* file, int line, const Message& message) {
TraceInfo trace;
trace.file = file;
trace.line = line;
trace.message = message.GetString();
UnitTest::GetInstance()->PushGTestTrace(trace);
}
// Pops the info pushed by the c'tor.
// L < UnitTest::mutex_
ScopedTrace::~ScopedTrace() {
UnitTest::GetInstance()->PopGTestTrace();
}
// class OsStackTraceGetter
// Returns the current OS stack trace as a String. Parameters:
//
// max_depth - the maximum number of stack frames to be included
// in the trace.
// skip_count - the number of top frames to be skipped; doesn't count
// against max_depth.
//
// L < mutex_
// We use "L < mutex_" to denote that the function may acquire mutex_.
String OsStackTraceGetter::CurrentStackTrace(int, int) {
return String("");
}
// L < mutex_
void OsStackTraceGetter::UponLeavingGTest() {
}
const char* const
OsStackTraceGetter::kElidedFramesMarker =
"... " GTEST_NAME " internal frames ...";
} // namespace internal
// class UnitTest
// Gets the singleton UnitTest object. The first time this method is
// called, a UnitTest object is constructed and returned. Consecutive
// calls will return the same object.
//
// We don't protect this under mutex_ as a user is not supposed to
// call this before main() starts, from which point on the return
// value will never change.
UnitTest * UnitTest::GetInstance() {
// When compiled with MSVC 7.1 in optimized mode, destroying the
// UnitTest object upon exiting the program messes up the exit code,
// causing successful tests to appear failed. We have to use a
// different implementation in this case to bypass the compiler bug.
// This implementation makes the compiler happy, at the cost of
// leaking the UnitTest object.
#if _MSC_VER == 1310 && !defined(_DEBUG) // MSVC 7.1 and optimized build.
static UnitTest* const instance = new UnitTest;
return instance;
#else
static UnitTest instance;
return &instance;
#endif // _MSC_VER==1310 && !defined(_DEBUG)
}
// Registers and returns a global test environment. When a test
// program is run, all global test environments will be set-up in the
// order they were registered. After all tests in the program have
// finished, all global test environments will be torn-down in the
// *reverse* order they were registered.
//
// The UnitTest object takes ownership of the given environment.
//
// We don't protect this under mutex_, as we only support calling it
// from the main thread.
Environment* UnitTest::AddEnvironment(Environment* env) {
if (env == NULL) {
return NULL;
}
impl_->environments()->PushBack(env);
impl_->environments_in_reverse_order()->PushFront(env);
return env;
}
// Adds a TestPartResult to the current TestResult object. All Google Test
// assertion macros (e.g. ASSERT_TRUE, EXPECT_EQ, etc) eventually call
// this to report their results. The user code should use the
// assertion macros instead of calling this directly.
// L < mutex_
void UnitTest::AddTestPartResult(TestPartResultType result_type,
const char* file_name,
int line_number,
const internal::String& message,
const internal::String& os_stack_trace) {
Message msg;
msg << message;
internal::MutexLock lock(&mutex_);
if (impl_->gtest_trace_stack()->size() > 0) {
msg << "\n" << GTEST_NAME << " trace:";
for (internal::ListNode<internal::TraceInfo>* node =
impl_->gtest_trace_stack()->Head();
node != NULL;
node = node->next()) {
const internal::TraceInfo& trace = node->element();
msg << "\n" << trace.file << ":" << trace.line << ": " << trace.message;
}
}
if (os_stack_trace.c_str() != NULL && !os_stack_trace.empty()) {
msg << "\nStack trace:\n" << os_stack_trace;
}
const TestPartResult result =
TestPartResult(result_type, file_name, line_number,
msg.GetString().c_str());
impl_->test_part_result_reporter()->ReportTestPartResult(result);
// If this is a failure and the user wants the debugger to break on
// failures ...
if (result_type != TPRT_SUCCESS && GTEST_FLAG(break_on_failure)) {
// ... then we generate a seg fault.
*static_cast<int*>(NULL) = 1;
}
}
// Creates and adds a property to the current TestResult. If a property matching
// the supplied value already exists, updates its value instead.
void UnitTest::RecordPropertyForCurrentTest(const char* key,
const char* value) {
const internal::TestProperty test_property(key, value);
impl_->current_test_result()->RecordProperty(test_property);
}
// Runs all tests in this UnitTest object and prints the result.
// Returns 0 if successful, or 1 otherwise.
//
// We don't protect this under mutex_, as we only support calling it
// from the main thread.
int UnitTest::Run() {
#ifdef GTEST_OS_WINDOWS
#if !defined(_WIN32_WCE)
// SetErrorMode doesn't exist on CE.
if (GTEST_FLAG(catch_exceptions)) {
// The user wants Google Test to catch exceptions thrown by the tests.
// This lets fatal errors be handled by us, instead of causing pop-ups.
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOALIGNMENTFAULTEXCEPT |
SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX);
}
#endif // _WIN32_WCE
__try {
return impl_->RunAllTests();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
printf("Exception thrown with code 0x%x.\nFAIL\n", GetExceptionCode());
fflush(stdout);
return 1;
}
#else
// We are on Linux or Mac OS. There is no exception of any kind.
return impl_->RunAllTests();
#endif // GTEST_OS_WINDOWS
}
// Returns the TestCase object for the test that's currently running,
// or NULL if no test is running.
// L < mutex_
const TestCase* UnitTest::current_test_case() const {
internal::MutexLock lock(&mutex_);
return impl_->current_test_case();
}
// Returns the TestInfo object for the test that's currently running,
// or NULL if no test is running.
// L < mutex_
const TestInfo* UnitTest::current_test_info() const {
internal::MutexLock lock(&mutex_);
return impl_->current_test_info();
}
// Creates an empty UnitTest.
UnitTest::UnitTest() {
impl_ = new internal::UnitTestImpl(this);
}
// Destructor of UnitTest.
UnitTest::~UnitTest() {
delete impl_;
}
// Pushes a trace defined by SCOPED_TRACE() on to the per-thread
// Google Test trace stack.
// L < mutex_
void UnitTest::PushGTestTrace(const internal::TraceInfo& trace) {
internal::MutexLock lock(&mutex_);
impl_->gtest_trace_stack()->PushFront(trace);
}
// Pops a trace from the per-thread Google Test trace stack.
// L < mutex_
void UnitTest::PopGTestTrace() {
internal::MutexLock lock(&mutex_);
impl_->gtest_trace_stack()->PopFront(NULL);
}
namespace internal {
UnitTestImpl::UnitTestImpl(UnitTest* parent)
: parent_(parent),
test_cases_(),
last_death_test_case_(NULL),
current_test_case_(NULL),
current_test_info_(NULL),
ad_hoc_test_result_(),
result_printer_(NULL),
os_stack_trace_getter_(NULL),
#ifdef GTEST_HAS_DEATH_TEST
elapsed_time_(0),
internal_run_death_test_flag_(NULL),
death_test_factory_(new DefaultDeathTestFactory) {
#else
elapsed_time_(0) {
#endif // GTEST_HAS_DEATH_TEST
// We do the assignment here instead of in the initializer list, as
// doing that latter causes MSVC to issue a warning about using
// 'this' in initializers.
test_part_result_reporter_ = this;
}
UnitTestImpl::~UnitTestImpl() {
// Deletes every TestCase.
test_cases_.ForEach(internal::Delete<TestCase>);
// Deletes every Environment.
environments_.ForEach(internal::Delete<Environment>);
// Deletes the current test result printer.
delete result_printer_;
delete os_stack_trace_getter_;
}
// A predicate that checks the name of a TestCase against a known
// value.
//
// This is used for implementation of the UnitTest class only. We put
// it in the anonymous namespace to prevent polluting the outer
// namespace.
//
// TestCaseNameIs is copyable.
class TestCaseNameIs {
public:
// Constructor.
explicit TestCaseNameIs(const String& name)
: name_(name) {}
// Returns true iff the name of test_case matches name_.
bool operator()(const TestCase* test_case) const {
return test_case != NULL && strcmp(test_case->name(), name_.c_str()) == 0;
}
private:
String name_;
};
// Finds and returns a TestCase with the given name. If one doesn't
// exist, creates one and returns it.
//
// Arguments:
//
// test_case_name: name of the test case
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
TestCase* UnitTestImpl::GetTestCase(const char* test_case_name,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc) {
// Can we find a TestCase with the given name?
internal::ListNode<TestCase*>* node = test_cases_.FindIf(
TestCaseNameIs(test_case_name));
if (node == NULL) {
// No. Let's create one.
TestCase* const test_case =
new TestCase(test_case_name, set_up_tc, tear_down_tc);
// Is this a death test case?
if (String(test_case_name).EndsWith("DeathTest")) {
// Yes. Inserts the test case after the last death test case
// defined so far.
node = test_cases_.InsertAfter(last_death_test_case_, test_case);
last_death_test_case_ = node;
} else {
// No. Appends to the end of the list.
test_cases_.PushBack(test_case);
node = test_cases_.Last();
}
}
// Returns the TestCase found.
return node->element();
}
// Helpers for setting up / tearing down the given environment. They
// are for use in the List::ForEach() method.
static void SetUpEnvironment(Environment* env) { env->SetUp(); }
static void TearDownEnvironment(Environment* env) { env->TearDown(); }
// Runs all tests in this UnitTest object, prints the result, and
// returns 0 if all tests are successful, or 1 otherwise. If any
// exception is thrown during a test on Windows, this test is
// considered to be failed, but the rest of the tests will still be
// run. (We disable exceptions on Linux and Mac OS X, so the issue
// doesn't apply there.)
int UnitTestImpl::RunAllTests() {
// Makes sure InitGoogleTest() was called.
if (!GTestIsInitialized()) {
printf("%s",
"\nThis test program did NOT call ::testing::InitGoogleTest "
"before calling RUN_ALL_TESTS(). Please fix it.\n");
return 1;
}
// Lists all the tests and exits if the --gtest_list_tests
// flag was specified.
if (GTEST_FLAG(list_tests)) {
ListAllTests();
return 0;
}
// True iff we are in a subprocess for running a thread-safe-style
// death test.
bool in_subprocess_for_death_test = false;
#ifdef GTEST_HAS_DEATH_TEST
internal_run_death_test_flag_.reset(ParseInternalRunDeathTestFlag());
in_subprocess_for_death_test = (internal_run_death_test_flag_.get() != NULL);
#endif // GTEST_HAS_DEATH_TEST
UnitTestEventListenerInterface * const printer = result_printer();
// Compares the full test names with the filter to decide which
// tests to run.
const bool has_tests_to_run = FilterTests() > 0;
// True iff at least one test has failed.
bool failed = false;
// How many times to repeat the tests? We don't want to repeat them
// when we are inside the subprocess of a death test.
const int repeat = in_subprocess_for_death_test ? 1 : GTEST_FLAG(repeat);
// Repeats forever if the repeat count is negative.
const bool forever = repeat < 0;
for (int i = 0; forever || i != repeat; i++) {
if (repeat != 1) {
printf("\nRepeating all tests (iteration %d) . . .\n\n", i + 1);
}
// Tells the unit test event listener that the tests are about to
// start.
printer->OnUnitTestStart(parent_);
const TimeInMillis start = GetTimeInMillis();
// Runs each test case if there is at least one test to run.
if (has_tests_to_run) {
// Sets up all environments beforehand.
printer->OnGlobalSetUpStart(parent_);
environments_.ForEach(SetUpEnvironment);
printer->OnGlobalSetUpEnd(parent_);
// Runs the tests only if there was no fatal failure during global
// set-up.
if (!Test::HasFatalFailure()) {
test_cases_.ForEach(TestCase::RunTestCase);
}
// Tears down all environments in reverse order afterwards.
printer->OnGlobalTearDownStart(parent_);
environments_in_reverse_order_.ForEach(TearDownEnvironment);
printer->OnGlobalTearDownEnd(parent_);
}
elapsed_time_ = GetTimeInMillis() - start;
// Tells the unit test event listener that the tests have just
// finished.
printer->OnUnitTestEnd(parent_);
// Gets the result and clears it.
if (!Passed()) {
failed = true;
}
ClearResult();
}
// Returns 0 if all tests passed, or 1 other wise.
return failed ? 1 : 0;
}
// Compares the name of each test with the user-specified filter to
// decide whether the test should be run, then records the result in
// each TestCase and TestInfo object.
// Returns the number of tests that should run.
int UnitTestImpl::FilterTests() {
int num_runnable_tests = 0;
for (const internal::ListNode<TestCase *> *test_case_node =
test_cases_.Head();
test_case_node != NULL;
test_case_node = test_case_node->next()) {
TestCase * const test_case = test_case_node->element();
const String &test_case_name = test_case->name();
test_case->set_should_run(false);
for (const internal::ListNode<TestInfo *> *test_info_node =
test_case->test_info_list().Head();
test_info_node != NULL;
test_info_node = test_info_node->next()) {
TestInfo * const test_info = test_info_node->element();
const String test_name(test_info->name());
// A test is disabled if test case name or test name matches
// kDisableTestPattern.
const bool is_disabled =
internal::UnitTestOptions::PatternMatchesString(kDisableTestPattern,
test_case_name.c_str()) ||
internal::UnitTestOptions::PatternMatchesString(kDisableTestPattern,
test_name.c_str());
test_info->impl()->set_is_disabled(is_disabled);
const bool should_run = !is_disabled &&
internal::UnitTestOptions::FilterMatchesTest(test_case_name,
test_name);
test_info->impl()->set_should_run(should_run);
test_case->set_should_run(test_case->should_run() || should_run);
if (should_run) {
num_runnable_tests++;
}
}
}
return num_runnable_tests;
}
// Lists all tests by name.
void UnitTestImpl::ListAllTests() {
for (const internal::ListNode<TestCase*>* test_case_node = test_cases_.Head();
test_case_node != NULL;
test_case_node = test_case_node->next()) {
const TestCase* const test_case = test_case_node->element();
// Prints the test case name following by an indented list of test nodes.
printf("%s.\n", test_case->name());
for (const internal::ListNode<TestInfo*>* test_info_node =
test_case->test_info_list().Head();
test_info_node != NULL;
test_info_node = test_info_node->next()) {
const TestInfo* const test_info = test_info_node->element();
printf(" %s\n", test_info->name());
}
}
fflush(stdout);
}
// Sets the unit test result printer.
//
// Does nothing if the input and the current printer object are the
// same; otherwise, deletes the old printer object and makes the
// input the current printer.
void UnitTestImpl::set_result_printer(
UnitTestEventListenerInterface* result_printer) {
if (result_printer_ != result_printer) {
delete result_printer_;
result_printer_ = result_printer;
}
}
// Returns the current unit test result printer if it is not NULL;
// otherwise, creates an appropriate result printer, makes it the
// current printer, and returns it.
UnitTestEventListenerInterface* UnitTestImpl::result_printer() {
if (result_printer_ != NULL) {
return result_printer_;
}
#ifdef GTEST_HAS_DEATH_TEST
if (internal_run_death_test_flag_.get() != NULL) {
result_printer_ = new NullUnitTestResultPrinter;
return result_printer_;
}
#endif // GTEST_HAS_DEATH_TEST
UnitTestEventsRepeater *repeater = new UnitTestEventsRepeater;
const String& output_format = internal::UnitTestOptions::GetOutputFormat();
if (output_format == "xml") {
repeater->AddListener(new XmlUnitTestResultPrinter(
internal::UnitTestOptions::GetOutputFile().c_str()));
} else if (output_format != "") {
printf("WARNING: unrecognized output format \"%s\" ignored.\n",
output_format.c_str());
fflush(stdout);
}
repeater->AddListener(new PrettyUnitTestResultPrinter);
result_printer_ = repeater;
return result_printer_;
}
// Sets the OS stack trace getter.
//
// Does nothing if the input and the current OS stack trace getter are
// the same; otherwise, deletes the old getter and makes the input the
// current getter.
void UnitTestImpl::set_os_stack_trace_getter(
OsStackTraceGetterInterface* getter) {
if (os_stack_trace_getter_ != getter) {
delete os_stack_trace_getter_;
os_stack_trace_getter_ = getter;
}
}
// Returns the current OS stack trace getter if it is not NULL;
// otherwise, creates an OsStackTraceGetter, makes it the current
// getter, and returns it.
OsStackTraceGetterInterface* UnitTestImpl::os_stack_trace_getter() {
if (os_stack_trace_getter_ == NULL) {
os_stack_trace_getter_ = new OsStackTraceGetter;
}
return os_stack_trace_getter_;
}
// Returns the TestResult for the test that's currently running, or
// the TestResult for the ad hoc test if no test is running.
internal::TestResult* UnitTestImpl::current_test_result() {
return current_test_info_ ?
current_test_info_->impl()->result() : &ad_hoc_test_result_;
}
// TestInfoImpl constructor.
TestInfoImpl::TestInfoImpl(TestInfo* parent,
const char* test_case_name,
const char* name,
TypeId fixture_class_id,
TestMaker maker) :
parent_(parent),
test_case_name_(String(test_case_name)),
name_(String(name)),
fixture_class_id_(fixture_class_id),
should_run_(false),
is_disabled_(false),
maker_(maker) {
}
// TestInfoImpl destructor.
TestInfoImpl::~TestInfoImpl() {
}
} // namespace internal
namespace internal {
// Parses a string as a command line flag. The string should have
// the format "--flag=value". When def_optional is true, the "=value"
// part can be omitted.
//
// Returns the value of the flag, or NULL if the parsing failed.
const char* ParseFlagValue(const char* str,
const char* flag,
bool def_optional) {
// str and flag must not be NULL.
if (str == NULL || flag == NULL) return NULL;
// The flag must start with "--" followed by GTEST_FLAG_PREFIX.
const String flag_str = String::Format("--%s%s", GTEST_FLAG_PREFIX, flag);
const size_t flag_len = flag_str.GetLength();
if (strncmp(str, flag_str.c_str(), flag_len) != 0) return NULL;
// Skips the flag name.
const char* flag_end = str + flag_len;
// When def_optional is true, it's OK to not have a "=value" part.
if (def_optional && (flag_end[0] == '\0')) {
return flag_end;
}
// If def_optional is true and there are more characters after the
// flag name, or if def_optional is false, there must be a '=' after
// the flag name.
if (flag_end[0] != '=') return NULL;
// Returns the string after "=".
return flag_end + 1;
}
// Parses a string for a bool flag, in the form of either
// "--flag=value" or "--flag".
//
// In the former case, the value is taken as true as long as it does
// not start with '0', 'f', or 'F'.
//
// In the latter case, the value is taken as true.
//
// On success, stores the value of the flag in *value, and returns
// true. On failure, returns false without changing *value.
bool ParseBoolFlag(const char* str, const char* flag, bool* value) {
// Gets the value of the flag as a string.
const char* const value_str = ParseFlagValue(str, flag, true);
// Aborts if the parsing failed.
if (value_str == NULL) return false;
// Converts the string value to a bool.
*value = !(*value_str == '0' || *value_str == 'f' || *value_str == 'F');
return true;
}
// Parses a string for an Int32 flag, in the form of
// "--flag=value".
//
// On success, stores the value of the flag in *value, and returns
// true. On failure, returns false without changing *value.
bool ParseInt32Flag(const char* str, const char* flag, Int32* value) {
// Gets the value of the flag as a string.
const char* const value_str = ParseFlagValue(str, flag, false);
// Aborts if the parsing failed.
if (value_str == NULL) return false;
// Sets *value to the value of the flag.
return ParseInt32(Message() << "The value of flag --" << flag,
value_str, value);
}
// Parses a string for a string flag, in the form of
// "--flag=value".
//
// On success, stores the value of the flag in *value, and returns
// true. On failure, returns false without changing *value.
bool ParseStringFlag(const char* str, const char* flag, String* value) {
// Gets the value of the flag as a string.
const char* const value_str = ParseFlagValue(str, flag, false);
// Aborts if the parsing failed.
if (value_str == NULL) return false;
// Sets *value to the value of the flag.
*value = value_str;
return true;
}
// The internal implementation of InitGoogleTest().
//
// The type parameter CharType can be instantiated to either char or
// wchar_t.
template <typename CharType>
void InitGoogleTestImpl(int* argc, CharType** argv) {
g_parse_gtest_flags_called = true;
if (*argc <= 0) return;
#ifdef GTEST_HAS_DEATH_TEST
g_argvs.clear();
for (int i = 0; i != *argc; i++) {
g_argvs.push_back(StreamableToString(argv[i]));
}
#endif // GTEST_HAS_DEATH_TEST
for (int i = 1; i != *argc; i++) {
const String arg_string = StreamableToString(argv[i]);
const char* const arg = arg_string.c_str();
using internal::ParseBoolFlag;
using internal::ParseInt32Flag;
using internal::ParseStringFlag;
// Do we see a Google Test flag?
if (ParseBoolFlag(arg, kBreakOnFailureFlag,
>EST_FLAG(break_on_failure)) ||
ParseBoolFlag(arg, kCatchExceptionsFlag,
>EST_FLAG(catch_exceptions)) ||
ParseStringFlag(arg, kColorFlag, >EST_FLAG(color)) ||
ParseStringFlag(arg, kDeathTestStyleFlag,
>EST_FLAG(death_test_style)) ||
ParseStringFlag(arg, kFilterFlag, >EST_FLAG(filter)) ||
ParseStringFlag(arg, kInternalRunDeathTestFlag,
>EST_FLAG(internal_run_death_test)) ||
ParseBoolFlag(arg, kListTestsFlag, >EST_FLAG(list_tests)) ||
ParseStringFlag(arg, kOutputFlag, >EST_FLAG(output)) ||
ParseInt32Flag(arg, kRepeatFlag, >EST_FLAG(repeat))
) {
// Yes. Shift the remainder of the argv list left by one. Note
// that argv has (*argc + 1) elements, the last one always being
// NULL. The following loop moves the trailing NULL element as
// well.
for (int j = i; j != *argc; j++) {
argv[j] = argv[j + 1];
}
// Decrements the argument count.
(*argc)--;
// We also need to decrement the iterator as we just removed
// an element.
i--;
}
}
}
} // namespace internal
// Initializes Google Test. This must be called before calling
// RUN_ALL_TESTS(). In particular, it parses a command line for the
// flags that Google Test recognizes. Whenever a Google Test flag is
// seen, it is removed from argv, and *argc is decremented.
//
// No value is returned. Instead, the Google Test flag variables are
// updated.
void InitGoogleTest(int* argc, char** argv) {
internal::g_executable_path = argv[0];
internal::InitGoogleTestImpl(argc, argv);
}
// This overloaded version can be used in Windows programs compiled in
// UNICODE mode.
#ifdef GTEST_OS_WINDOWS
void InitGoogleTest(int* argc, wchar_t** argv) {
// g_executable_path uses normal characters rather than wide chars, so call
// StreamableToString to convert argv[0] to normal characters (utf8 encoding).
internal::g_executable_path = internal::StreamableToString(argv[0]);
internal::InitGoogleTestImpl(argc, argv);
}
#endif // GTEST_OS_WINDOWS
} // namespace testing