/* * Copyright (C) 2009 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <memory> #include <string> #include <gtest/gtest.h> #include "edify/expr.h" static void expect(const std::string& expr_str, const char* expected) { std::unique_ptr<Expr> e; int error_count = 0; EXPECT_EQ(0, ParseString(expr_str, &e, &error_count)); EXPECT_EQ(0, error_count); State state(expr_str, nullptr); std::string result; bool status = Evaluate(&state, e, &result); if (expected == nullptr) { EXPECT_FALSE(status); } else { EXPECT_STREQ(expected, result.c_str()); } } class EdifyTest : public ::testing::Test { protected: void SetUp() { RegisterBuiltins(); } }; TEST_F(EdifyTest, parsing) { expect("a", "a"); expect("\"a\"", "a"); expect("\"\\x61\"", "a"); expect("# this is a comment\n" " a\n" " \n", "a"); } TEST_F(EdifyTest, sequence) { // sequence operator expect("a; b; c", "c"); } TEST_F(EdifyTest, concat) { // string concat operator expect("a + b", "ab"); expect("a + \n \"b\"", "ab"); expect("a + b +\nc\n", "abc"); // string concat function expect("concat(a, b)", "ab"); expect("concat(a,\n \"b\")", "ab"); expect("concat(a + b,\nc,\"d\")", "abcd"); expect("\"concat\"(a + b,\nc,\"d\")", "abcd"); } TEST_F(EdifyTest, logical) { // logical and expect("a && b", "b"); expect("a && \"\"", ""); expect("\"\" && b", ""); expect("\"\" && \"\"", ""); expect("\"\" && abort()", ""); // test short-circuiting expect("t && abort()", nullptr); // logical or expect("a || b", "a"); expect("a || \"\"", "a"); expect("\"\" || b", "b"); expect("\"\" || \"\"", ""); expect("a || abort()", "a"); // test short-circuiting expect("\"\" || abort()", NULL); // logical not expect("!a", ""); expect("! \"\"", "t"); expect("!!a", "t"); } TEST_F(EdifyTest, precedence) { // precedence expect("\"\" == \"\" && b", "b"); expect("a + b == ab", "t"); expect("ab == a + b", "t"); expect("a + (b == ab)", "a"); expect("(ab == a) + b", "b"); } TEST_F(EdifyTest, substring) { // substring function expect("is_substring(cad, abracadabra)", "t"); expect("is_substring(abrac, abracadabra)", "t"); expect("is_substring(dabra, abracadabra)", "t"); expect("is_substring(cad, abracxadabra)", ""); expect("is_substring(abrac, axbracadabra)", ""); expect("is_substring(dabra, abracadabrxa)", ""); } TEST_F(EdifyTest, ifelse) { // ifelse function expect("ifelse(t, yes, no)", "yes"); expect("ifelse(!t, yes, no)", "no"); expect("ifelse(t, yes, abort())", "yes"); expect("ifelse(!t, abort(), no)", "no"); } TEST_F(EdifyTest, if_statement) { // if "statements" expect("if t then yes else no endif", "yes"); expect("if \"\" then yes else no endif", "no"); expect("if \"\" then yes endif", ""); expect("if \"\"; t then yes endif", "yes"); } TEST_F(EdifyTest, comparison) { // numeric comparisons expect("less_than_int(3, 14)", "t"); expect("less_than_int(14, 3)", ""); expect("less_than_int(x, 3)", ""); expect("less_than_int(3, x)", ""); expect("greater_than_int(3, 14)", ""); expect("greater_than_int(14, 3)", "t"); expect("greater_than_int(x, 3)", ""); expect("greater_than_int(3, x)", ""); } TEST_F(EdifyTest, big_string) { expect(std::string(8192, 's'), std::string(8192, 's').c_str()); } TEST_F(EdifyTest, unknown_function) { const char* script1 = "unknown_function()"; std::unique_ptr<Expr> expr; int error_count = 0; EXPECT_EQ(1, ParseString(script1, &expr, &error_count)); EXPECT_EQ(1, error_count); const char* script2 = "abc; unknown_function()"; error_count = 0; EXPECT_EQ(1, ParseString(script2, &expr, &error_count)); EXPECT_EQ(1, error_count); const char* script3 = "unknown_function1() || yes"; error_count = 0; EXPECT_EQ(1, ParseString(script3, &expr, &error_count)); EXPECT_EQ(1, error_count); }