/* * Copyright (C) 2007 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. */ import junit.framework.Assert; import java.util.Arrays; import java.lang.reflect.Method; public class Main { public static void main(String args[]) throws Exception { test_Double_doubleToRawLongBits(); test_Double_longBitsToDouble(); test_Float_floatToRawIntBits(); test_Float_intBitsToFloat(); test_Math_abs_I(); test_Math_abs_J(); test_Math_min_I(); test_Math_max_I(); test_Math_min_J(); test_Math_max_J(); test_Math_min_F(); test_Math_max_F(); test_Math_min_D(); test_Math_max_D(); test_Math_sqrt(); test_Math_ceil(); test_Math_floor(); test_Math_rint(); test_Math_round_D(); test_Math_round_F(); test_Short_reverseBytes(); test_Integer_reverseBytes(); test_Long_reverseBytes(); test_Integer_reverse(); test_Long_reverse(); test_StrictMath_abs_I(); test_StrictMath_abs_J(); test_StrictMath_min_I(); test_StrictMath_max_I(); test_StrictMath_min_J(); test_StrictMath_max_J(); test_StrictMath_min_F(); test_StrictMath_max_F(); test_StrictMath_min_D(); test_StrictMath_max_D(); test_StrictMath_sqrt(); test_StrictMath_ceil(); test_StrictMath_floor(); test_StrictMath_rint(); test_StrictMath_round_D(); test_StrictMath_round_F(); test_String_charAt(); test_String_compareTo(); test_String_indexOf(); test_String_isEmpty(); test_String_length(); test_Thread_currentThread(); initSupportMethodsForPeekPoke(); test_Memory_peekByte(); test_Memory_peekShort(); test_Memory_peekInt(); test_Memory_peekLong(); test_Memory_pokeByte(); test_Memory_pokeShort(); test_Memory_pokeInt(); test_Memory_pokeLong(); } /** * Will test inlining Thread.currentThread(). */ public static void test_Thread_currentThread() { // 1. Do not use result. Thread.currentThread(); // 2. Result should not be null. Assert.assertNotNull(Thread.currentThread()); } public static void test_String_length() { String str0 = ""; String str1 = "x"; String str80 = "01234567890123456789012345678901234567890123456789012345678901234567890123456789"; Assert.assertEquals(str0.length(), 0); Assert.assertEquals(str1.length(), 1); Assert.assertEquals(str80.length(), 80); String strNull = null; try { strNull.length(); Assert.fail(); } catch (NullPointerException expected) { } } public static void test_String_isEmpty() { String str0 = ""; String str1 = "x"; Assert.assertTrue(str0.isEmpty()); Assert.assertFalse(str1.isEmpty()); String strNull = null; try { strNull.isEmpty(); Assert.fail(); } catch (NullPointerException expected) { } } // Break up the charAt tests. The optimizing compiler doesn't optimize methods with try-catch yet, // so we need to separate out the tests that are expected to throw exception public static void test_String_charAt() { String testStr = "Now is the time to test some stuff"; Assert.assertEquals(testStr.length() - 1, 33); // 33 = testStr.length()-1 as a constant. Assert.assertEquals('f', testStr.charAt(33)); test_String_charAt(testStr, 'N', 'o', ' ', 'f'); test_String_charAt(testStr.substring(3,15), ' ', 'i', 'm', 'e'); } public static void test_String_charAt(String testStr, char a, char b, char c, char d) { Assert.assertEquals(a, testStr.charAt(0)); Assert.assertEquals(b, testStr.charAt(1)); Assert.assertEquals(c, testStr.charAt(10)); Assert.assertEquals(d, testStr.charAt(testStr.length()-1)); test_String_charAtExc(testStr); test_String_charAtExc2(testStr); } private static void test_String_charAtExc(String testStr) { try { testStr.charAt(-1); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { testStr.charAt(80); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { if (testStr.length() == 34) { testStr.charAt(34); // 34 = "Now is the time to test some stuff".length() } else { Assert.assertEquals(testStr.length(), 12); // 12 = " is the time".length() testStr.charAt(12); } Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { test_String_charAt_inner(testStr, -1); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { test_String_charAt_inner(testStr, 80); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { if (testStr.length() == 34) { // 34 = "Now is the time to test some stuff".length() test_String_charAt_inner(testStr, 34); } else { Assert.assertEquals(testStr.length(), 12); // 12 = " is the time".length() test_String_charAt_inner(testStr, 12); } Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } String strEmpty = ""; try { strEmpty.charAt(0); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } String strNull = null; try { strNull.charAt(0); Assert.fail(); } catch (NullPointerException expected) { } } private static char test_String_charAt_inner(String s, int index) { // Using non-constant index here (assuming that this method wasn't inlined). return s.charAt(index); } private static void test_String_charAtExc2(String testStr) { try { test_String_charAtExc3(testStr); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } try { test_String_charAtExc4(testStr); Assert.fail(); } catch (StringIndexOutOfBoundsException expected) { } } private static void test_String_charAtExc3(String testStr) { Assert.assertEquals('N', testStr.charAt(-1)); } private static void test_String_charAtExc4(String testStr) { Assert.assertEquals('N', testStr.charAt(100)); } static int start; private static int[] negIndex = { -100000 }; public static void test_String_indexOf() { String str0 = ""; String str1 = "/"; String str3 = "abc"; String str10 = "abcdefghij"; String str40 = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabc"; Assert.assertEquals(str0.indexOf('a'), -1); Assert.assertEquals(str3.indexOf('a'), 0); Assert.assertEquals(str3.indexOf('b'), 1); Assert.assertEquals(str3.indexOf('c'), 2); Assert.assertEquals(str10.indexOf('j'), 9); Assert.assertEquals(str40.indexOf('a'), 0); Assert.assertEquals(str40.indexOf('b'), 38); Assert.assertEquals(str40.indexOf('c'), 39); Assert.assertEquals(str0.indexOf('a',20), -1); Assert.assertEquals(str0.indexOf('a',0), -1); Assert.assertEquals(str0.indexOf('a',-1), -1); Assert.assertEquals(str1.indexOf('/',++start), -1); Assert.assertEquals(str1.indexOf('a',negIndex[0]), -1); Assert.assertEquals(str3.indexOf('a',0), 0); Assert.assertEquals(str3.indexOf('a',1), -1); Assert.assertEquals(str3.indexOf('a',1234), -1); Assert.assertEquals(str3.indexOf('b',0), 1); Assert.assertEquals(str3.indexOf('b',1), 1); Assert.assertEquals(str3.indexOf('c',2), 2); Assert.assertEquals(str10.indexOf('j',5), 9); Assert.assertEquals(str10.indexOf('j',9), 9); Assert.assertEquals(str40.indexOf('a',10), 10); Assert.assertEquals(str40.indexOf('b',40), -1); testIndexOfNull(); // Same data as above, but stored so it's not a literal in the next test. -2 stands for // indexOf(I) instead of indexOf(II). start--; int[][] searchData = { { 'a', -2, -1 }, { 'a', -2, 0 }, { 'b', -2, 1 }, { 'c', -2, 2 }, { 'j', -2, 9 }, { 'a', -2, 0 }, { 'b', -2, 38 }, { 'c', -2, 39 }, { 'a', 20, -1 }, { 'a', 0, -1 }, { 'a', -1, -1 }, { '/', ++start, -1 }, { 'a', negIndex[0], -1 }, { 'a', 0, 0 }, { 'a', 1, -1 }, { 'a', 1234, -1 }, { 'b', 0, 1 }, { 'b', 1, 1 }, { 'c', 2, 2 }, { 'j', 5, 9 }, { 'j', 9, 9 }, { 'a', 10, 10 }, { 'b', 40, -1 }, }; testStringIndexOfChars(searchData); testSurrogateIndexOf(); } private static void testStringIndexOfChars(int[][] searchData) { // Use a try-catch to avoid inlining. try { testStringIndexOfCharsImpl(searchData); } catch (Exception e) { System.out.println("Unexpected exception"); } } private static void testStringIndexOfCharsImpl(int[][] searchData) { String str0 = ""; String str1 = "/"; String str3 = "abc"; String str10 = "abcdefghij"; String str40 = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabc"; Assert.assertEquals(str0.indexOf(searchData[0][0]), searchData[0][2]); Assert.assertEquals(str3.indexOf(searchData[1][0]), searchData[1][2]); Assert.assertEquals(str3.indexOf(searchData[2][0]), searchData[2][2]); Assert.assertEquals(str3.indexOf(searchData[3][0]), searchData[3][2]); Assert.assertEquals(str10.indexOf(searchData[4][0]), searchData[4][2]); Assert.assertEquals(str40.indexOf(searchData[5][0]), searchData[5][2]); Assert.assertEquals(str40.indexOf(searchData[6][0]), searchData[6][2]); Assert.assertEquals(str40.indexOf(searchData[7][0]), searchData[7][2]); Assert.assertEquals(str0.indexOf(searchData[8][0], searchData[8][1]), searchData[8][2]); Assert.assertEquals(str0.indexOf(searchData[9][0], searchData[9][1]), searchData[9][2]); Assert.assertEquals(str0.indexOf(searchData[10][0], searchData[10][1]), searchData[10][2]); Assert.assertEquals(str1.indexOf(searchData[11][0], searchData[11][1]), searchData[11][2]); Assert.assertEquals(str1.indexOf(searchData[12][0], searchData[12][1]), searchData[12][2]); Assert.assertEquals(str3.indexOf(searchData[13][0], searchData[13][1]), searchData[13][2]); Assert.assertEquals(str3.indexOf(searchData[14][0], searchData[14][1]), searchData[14][2]); Assert.assertEquals(str3.indexOf(searchData[15][0], searchData[15][1]), searchData[15][2]); Assert.assertEquals(str3.indexOf(searchData[16][0], searchData[16][1]), searchData[16][2]); Assert.assertEquals(str3.indexOf(searchData[17][0], searchData[17][1]), searchData[17][2]); Assert.assertEquals(str3.indexOf(searchData[18][0], searchData[18][1]), searchData[18][2]); Assert.assertEquals(str10.indexOf(searchData[19][0], searchData[19][1]), searchData[19][2]); Assert.assertEquals(str10.indexOf(searchData[20][0], searchData[20][1]), searchData[20][2]); Assert.assertEquals(str40.indexOf(searchData[21][0], searchData[21][1]), searchData[21][2]); Assert.assertEquals(str40.indexOf(searchData[22][0], searchData[22][1]), searchData[22][2]); } private static void testSurrogateIndexOf() { int supplementaryChar = 0x20b9f; String surrogatePair = "\ud842\udf9f"; String stringWithSurrogates = "hello " + surrogatePair + " world"; Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar), "hello ".length()); Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 2), "hello ".length()); Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 6), 6); Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 7), -1); Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar - 0x10000), -1); Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar | 0x80000000), -1); } private static void testIndexOfNull() { String strNull = null; try { testNullIndex(strNull, 'a'); Assert.fail(); } catch (NullPointerException expected) { } try { testNullIndex(strNull, 'a', 0); Assert.fail(); } catch (NullPointerException expected) { } try { testNullIndex(strNull, 'a', -1); Assert.fail(); } catch (NullPointerException expected) { } } private static int testNullIndex(String strNull, int c) { return strNull.indexOf(c); } private static int testNullIndex(String strNull, int c, int startIndex) { return strNull.indexOf(c, startIndex); } public static void test_String_compareTo() { String test = "0123456789"; String test1 = new String("0123456789"); // different object String test2 = new String("0123456780"); // different value String offset = new String("xxx0123456789yyy"); String sub = offset.substring(3, 13); String str32 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; String str33 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxy"; String lc = "abcdefg"; String uc = "ABCDEFG"; Object blah = new Object(); Assert.assertTrue(lc.toUpperCase().equals(uc)); Assert.assertEquals(str32.compareTo(str33), -1); Assert.assertEquals(str33.compareTo(str32), 1); Assert.assertTrue(test.equals(test)); Assert.assertTrue(test.equals(test1)); Assert.assertFalse(test.equals(test2)); Assert.assertEquals(test.compareTo(test1), 0); Assert.assertTrue(test1.compareTo(test2) > 0); Assert.assertTrue(test2.compareTo(test1) < 0); // Compare string with a nonzero offset, in left/right side. Assert.assertEquals(test.compareTo(sub), 0); Assert.assertEquals(sub.compareTo(test), 0); Assert.assertTrue(test.equals(sub)); Assert.assertTrue(sub.equals(test)); // Same base, one is a substring. Assert.assertFalse(offset.equals(sub)); Assert.assertFalse(sub.equals(offset)); // Wrong class. Assert.assertFalse(test.equals(blah)); // Null lhs - throw. try { test.compareTo(null); Assert.fail("didn't get expected npe"); } catch (NullPointerException npe) { } // Null rhs - okay. Assert.assertFalse(test.equals(null)); test = test.substring(1); Assert.assertTrue(test.equals("123456789")); Assert.assertFalse(test.equals(test1)); test = test.substring(1); Assert.assertTrue(test.equals("23456789")); test = test.substring(1); Assert.assertTrue(test.equals("3456789")); test = test.substring(1); Assert.assertTrue(test.equals("456789")); test = test.substring(3,5); Assert.assertTrue(test.equals("78")); test = "this/is/a/path"; String[] strings = test.split("/"); Assert.assertEquals(4, strings.length); Assert.assertEquals("this is a path", test.replaceAll("/", " ")); Assert.assertEquals("this is a path", test.replace("/", " ")); } public static void test_Math_abs_I() { Math.abs(-1); Assert.assertEquals(Math.abs(0), 0); Assert.assertEquals(Math.abs(123), 123); Assert.assertEquals(Math.abs(-123), 123); Assert.assertEquals(Math.abs(Integer.MAX_VALUE), Integer.MAX_VALUE); Assert.assertEquals(Math.abs(Integer.MIN_VALUE), Integer.MIN_VALUE); Assert.assertEquals(Math.abs(Integer.MIN_VALUE - 1), Integer.MAX_VALUE); Assert.assertEquals(Math.abs(Integer.MIN_VALUE + 1), Integer.MAX_VALUE); } public static void test_Math_abs_J() { Math.abs(-1L); Assert.assertEquals(Math.abs(0L), 0L); Assert.assertEquals(Math.abs(123L), 123L); Assert.assertEquals(Math.abs(-123L), 123L); Assert.assertEquals(Math.abs(Long.MAX_VALUE), Long.MAX_VALUE); Assert.assertEquals(Math.abs(Long.MIN_VALUE), Long.MIN_VALUE); Assert.assertEquals(Math.abs(Long.MIN_VALUE - 1), Long.MAX_VALUE); Assert.assertEquals(Math.abs(2147483648L), 2147483648L); } public static void test_Math_min_I() { Math.min(1, 0); Assert.assertEquals(Math.min(0, 0), 0); Assert.assertEquals(Math.min(1, 0), 0); Assert.assertEquals(Math.min(0, 1), 0); Assert.assertEquals(Math.min(0, Integer.MAX_VALUE), 0); Assert.assertEquals(Math.min(Integer.MIN_VALUE, 0), Integer.MIN_VALUE); Assert.assertEquals(Math.min(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MIN_VALUE); } public static void test_Math_max_I() { Math.max(1, 0); Assert.assertEquals(Math.max(0, 0), 0); Assert.assertEquals(Math.max(1, 0), 1); Assert.assertEquals(Math.max(0, 1), 1); Assert.assertEquals(Math.max(0, Integer.MAX_VALUE), Integer.MAX_VALUE); Assert.assertEquals(Math.max(Integer.MIN_VALUE, 0), 0); Assert.assertEquals(Math.max(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MAX_VALUE); } public static void test_Math_min_J() { Math.min(1L, 0L); Assert.assertEquals(Math.min(0L, 0L), 0L); Assert.assertEquals(Math.min(1L, 0L), 0L); Assert.assertEquals(Math.min(0L, 1L), 0L); Assert.assertEquals(Math.min(0L, Long.MAX_VALUE), 0L); Assert.assertEquals(Math.min(Long.MIN_VALUE, 0L), Long.MIN_VALUE); Assert.assertEquals(Math.min(Long.MIN_VALUE, Long.MAX_VALUE), Long.MIN_VALUE); } public static void test_Math_max_J() { Math.max(1L, 0L); Assert.assertEquals(Math.max(0L, 0L), 0L); Assert.assertEquals(Math.max(1L, 0L), 1L); Assert.assertEquals(Math.max(0L, 1L), 1L); Assert.assertEquals(Math.max(0L, Long.MAX_VALUE), Long.MAX_VALUE); Assert.assertEquals(Math.max(Long.MIN_VALUE, 0L), 0L); Assert.assertEquals(Math.max(Long.MIN_VALUE, Long.MAX_VALUE), Long.MAX_VALUE); } public static void test_Math_min_F() { Math.min(1.0f, Float.NaN); Assert.assertTrue(Float.isNaN(Math.min(1.0f, Float.NaN))); Assert.assertTrue(Float.isNaN(Math.min(Float.NaN, 1.0f))); Assert.assertEquals(Math.min(-0.0f, 0.0f), -0.0f); Assert.assertEquals(Math.min(0.0f, -0.0f), -0.0f); Assert.assertEquals(Math.min(-0.0f, -0.0f), -0.0f); Assert.assertEquals(Math.min(0.0f, 0.0f), 0.0f); Assert.assertEquals(Math.min(1.0f, 0.0f), 0.0f); Assert.assertEquals(Math.min(0.0f, 1.0f), 0.0f); Assert.assertEquals(Math.min(0.0f, Float.MAX_VALUE), 0.0f); Assert.assertEquals(Math.min(Float.MIN_VALUE, 0.0f), 0.0f); Assert.assertEquals(Math.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE); } public static void test_Math_max_F() { Math.max(1.0f, Float.NaN); Assert.assertTrue(Float.isNaN(Math.max(1.0f, Float.NaN))); Assert.assertTrue(Float.isNaN(Math.max(Float.NaN, 1.0f))); Assert.assertEquals(Math.max(-0.0f, 0.0f), 0.0f); Assert.assertEquals(Math.max(0.0f, -0.0f), 0.0f); Assert.assertEquals(Math.max(-0.0f, -0.0f), -0.0f); Assert.assertEquals(Math.max(0.0f, 0.0f), 0.0f); Assert.assertEquals(Math.max(1.0f, 0.0f), 1.0f); Assert.assertEquals(Math.max(0.0f, 1.0f), 1.0f); Assert.assertEquals(Math.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE); Assert.assertEquals(Math.max(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE); Assert.assertEquals(Math.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE); } public static void test_Math_min_D() { Math.min(1.0d, Double.NaN); Assert.assertTrue(Double.isNaN(Math.min(1.0d, Double.NaN))); Assert.assertTrue(Double.isNaN(Math.min(Double.NaN, 1.0d))); Assert.assertEquals(Math.min(-0.0d, 0.0d), -0.0d); Assert.assertEquals(Math.min(0.0d, -0.0d), -0.0d); Assert.assertEquals(Math.min(-0.0d, -0.0d), -0.0d); Assert.assertEquals(Math.min(0.0d, 0.0d), 0.0d); Assert.assertEquals(Math.min(1.0d, 0.0d), 0.0d); Assert.assertEquals(Math.min(0.0d, 1.0d), 0.0d); Assert.assertEquals(Math.min(0.0d, Double.MAX_VALUE), 0.0d); Assert.assertEquals(Math.min(Double.MIN_VALUE, 0.0d), 0.0d); Assert.assertEquals(Math.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE); } public static void test_Math_max_D() { Math.max(1.0d, Double.NaN); Assert.assertTrue(Double.isNaN(Math.max(1.0d, Double.NaN))); Assert.assertTrue(Double.isNaN(Math.max(Double.NaN, 1.0d))); Assert.assertEquals(Math.max(-0.0d, 0.0d), 0.0d); Assert.assertEquals(Math.max(0.0d, -0.0d), 0.0d); Assert.assertEquals(Math.max(-0.0d, -0.0d), -0.0d); Assert.assertEquals(Math.max(0.0d, 0.0d), 0.0d); Assert.assertEquals(Math.max(1.0d, 0.0d), 1.0d); Assert.assertEquals(Math.max(0.0d, 1.0d), 1.0d); Assert.assertEquals(Math.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE); Assert.assertEquals(Math.max(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE); Assert.assertEquals(Math.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE); } public static void test_Math_sqrt() { Math.sqrt(+4.0); Assert.assertEquals(Math.sqrt(+4.0), +2.0d, 0.0); Assert.assertEquals(Math.sqrt(+49.0), +7.0d, 0.0); Assert.assertEquals(Math.sqrt(+1.44), +1.2d, 0.0); } public static void test_Math_ceil() { Math.ceil(-0.9); Assert.assertEquals(Math.ceil(+0.0), +0.0d, 0.0); Assert.assertEquals(Math.ceil(-0.0), -0.0d, 0.0); Assert.assertEquals(Math.ceil(-0.9), -0.0d, 0.0); Assert.assertEquals(Math.ceil(-0.5), -0.0d, 0.0); Assert.assertEquals(Math.ceil(0.0), -0.0d, 0.0); Assert.assertEquals(Math.ceil(+2.0), +2.0d, 0.0); Assert.assertEquals(Math.ceil(+2.1), +3.0d, 0.0); Assert.assertEquals(Math.ceil(+2.5), +3.0d, 0.0); Assert.assertEquals(Math.ceil(+2.9), +3.0d, 0.0); Assert.assertEquals(Math.ceil(+3.0), +3.0d, 0.0); Assert.assertEquals(Math.ceil(-2.0), -2.0d, 0.0); Assert.assertEquals(Math.ceil(-2.1), -2.0d, 0.0); Assert.assertEquals(Math.ceil(-2.5), -2.0d, 0.0); Assert.assertEquals(Math.ceil(-2.9), -2.0d, 0.0); Assert.assertEquals(Math.ceil(-3.0), -3.0d, 0.0); Assert.assertEquals(Math.ceil(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(Math.ceil(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(Math.ceil(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_Math_floor() { Math.floor(+2.1); Assert.assertEquals(Math.floor(+0.0), +0.0d, 0.0); Assert.assertEquals(Math.floor(-0.0), -0.0d, 0.0); Assert.assertEquals(Math.floor(+2.0), +2.0d, 0.0); Assert.assertEquals(Math.floor(+2.1), +2.0d, 0.0); Assert.assertEquals(Math.floor(+2.5), +2.0d, 0.0); Assert.assertEquals(Math.floor(+2.9), +2.0d, 0.0); Assert.assertEquals(Math.floor(+3.0), +3.0d, 0.0); Assert.assertEquals(Math.floor(-2.0), -2.0d, 0.0); Assert.assertEquals(Math.floor(-2.1), -3.0d, 0.0); Assert.assertEquals(Math.floor(-2.5), -3.0d, 0.0); Assert.assertEquals(Math.floor(-2.9), -3.0d, 0.0); Assert.assertEquals(Math.floor(-3.0), -3.0d, 0.0); Assert.assertEquals(Math.floor(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(Math.floor(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(Math.floor(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_Math_rint() { Math.rint(+2.1); Assert.assertEquals(Math.rint(+0.0), +0.0d, 0.0); Assert.assertEquals(Math.rint(-0.0), -0.0d, 0.0); Assert.assertEquals(Math.rint(+2.0), +2.0d, 0.0); Assert.assertEquals(Math.rint(+2.1), +2.0d, 0.0); Assert.assertEquals(Math.rint(+2.5), +2.0d, 0.0); Assert.assertEquals(Math.rint(+2.9), +3.0d, 0.0); Assert.assertEquals(Math.rint(+3.0), +3.0d, 0.0); Assert.assertEquals(Math.rint(-2.0), -2.0d, 0.0); Assert.assertEquals(Math.rint(-2.1), -2.0d, 0.0); Assert.assertEquals(Math.rint(-2.5), -2.0d, 0.0); Assert.assertEquals(Math.rint(-2.9), -3.0d, 0.0); Assert.assertEquals(Math.rint(-3.0), -3.0d, 0.0); Assert.assertEquals(Math.rint(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(Math.rint(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(Math.rint(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_Math_round_D() { Math.round(2.1d); Assert.assertEquals(Math.round(+0.0d), (long)+0.0); Assert.assertEquals(Math.round(-0.0d), (long)+0.0); Assert.assertEquals(Math.round(2.0d), 2l); Assert.assertEquals(Math.round(2.1d), 2l); Assert.assertEquals(Math.round(2.5d), 3l); Assert.assertEquals(Math.round(2.9d), 3l); Assert.assertEquals(Math.round(3.0d), 3l); Assert.assertEquals(Math.round(-2.0d), -2l); Assert.assertEquals(Math.round(-2.1d), -2l); Assert.assertEquals(Math.round(-2.5d), -2l); Assert.assertEquals(Math.round(-2.9d), -3l); Assert.assertEquals(Math.round(-3.0d), -3l); Assert.assertEquals(Math.round(0.49999999999999994d), 1l); Assert.assertEquals(Math.round(Double.NaN), (long)+0.0d); Assert.assertEquals(Math.round(Long.MAX_VALUE + 1.0d), Long.MAX_VALUE); Assert.assertEquals(Math.round(Long.MIN_VALUE - 1.0d), Long.MIN_VALUE); Assert.assertEquals(Math.round(Double.POSITIVE_INFINITY), Long.MAX_VALUE); Assert.assertEquals(Math.round(Double.NEGATIVE_INFINITY), Long.MIN_VALUE); } public static void test_Math_round_F() { Math.round(2.1f); Assert.assertEquals(Math.round(+0.0f), (int)+0.0); Assert.assertEquals(Math.round(-0.0f), (int)+0.0); Assert.assertEquals(Math.round(2.0f), 2); Assert.assertEquals(Math.round(2.1f), 2); Assert.assertEquals(Math.round(2.5f), 3); Assert.assertEquals(Math.round(2.9f), 3); Assert.assertEquals(Math.round(3.0f), 3); Assert.assertEquals(Math.round(-2.0f), -2); Assert.assertEquals(Math.round(-2.1f), -2); Assert.assertEquals(Math.round(-2.5f), -2); Assert.assertEquals(Math.round(-2.9f), -3); Assert.assertEquals(Math.round(-3.0f), -3); Assert.assertEquals(Math.round(Float.NaN), (int)+0.0f); Assert.assertEquals(Math.round(Integer.MAX_VALUE + 1.0f), Integer.MAX_VALUE); Assert.assertEquals(Math.round(Integer.MIN_VALUE - 1.0f), Integer.MIN_VALUE); Assert.assertEquals(Math.round(Float.POSITIVE_INFINITY), Integer.MAX_VALUE); Assert.assertEquals(Math.round(Float.NEGATIVE_INFINITY), Integer.MIN_VALUE); } public static void test_StrictMath_abs_I() { StrictMath.abs(-1); Assert.assertEquals(StrictMath.abs(0), 0); Assert.assertEquals(StrictMath.abs(123), 123); Assert.assertEquals(StrictMath.abs(-123), 123); Assert.assertEquals(StrictMath.abs(Integer.MAX_VALUE), Integer.MAX_VALUE); Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE), Integer.MIN_VALUE); Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE - 1), Integer.MAX_VALUE); Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE + 1), Integer.MAX_VALUE); } public static void test_StrictMath_abs_J() { StrictMath.abs(-1L); Assert.assertEquals(StrictMath.abs(0L), 0L); Assert.assertEquals(StrictMath.abs(123L), 123L); Assert.assertEquals(StrictMath.abs(-123L), 123L); Assert.assertEquals(StrictMath.abs(Long.MAX_VALUE), Long.MAX_VALUE); Assert.assertEquals(StrictMath.abs(Long.MIN_VALUE), Long.MIN_VALUE); Assert.assertEquals(StrictMath.abs(Long.MIN_VALUE - 1), Long.MAX_VALUE); } public static void test_StrictMath_min_I() { StrictMath.min(1, 0); Assert.assertEquals(StrictMath.min(0, 0), 0); Assert.assertEquals(StrictMath.min(1, 0), 0); Assert.assertEquals(StrictMath.min(0, 1), 0); Assert.assertEquals(StrictMath.min(0, Integer.MAX_VALUE), 0); Assert.assertEquals(StrictMath.min(Integer.MIN_VALUE, 0), Integer.MIN_VALUE); Assert.assertEquals(StrictMath.min(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MIN_VALUE); } public static void test_StrictMath_max_I() { StrictMath.max(1, 0); Assert.assertEquals(StrictMath.max(0, 0), 0); Assert.assertEquals(StrictMath.max(1, 0), 1); Assert.assertEquals(StrictMath.max(0, 1), 1); Assert.assertEquals(StrictMath.max(0, Integer.MAX_VALUE), Integer.MAX_VALUE); Assert.assertEquals(StrictMath.max(Integer.MIN_VALUE, 0), 0); Assert.assertEquals(StrictMath.max(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MAX_VALUE); } public static void test_StrictMath_min_J() { StrictMath.min(1L, 0L); Assert.assertEquals(StrictMath.min(0L, 0L), 0L); Assert.assertEquals(StrictMath.min(1L, 0L), 0L); Assert.assertEquals(StrictMath.min(0L, 1L), 0L); Assert.assertEquals(StrictMath.min(0L, Long.MAX_VALUE), 0L); Assert.assertEquals(StrictMath.min(Long.MIN_VALUE, 0L), Long.MIN_VALUE); Assert.assertEquals(StrictMath.min(Long.MIN_VALUE, Long.MAX_VALUE), Long.MIN_VALUE); } public static void test_StrictMath_max_J() { StrictMath.max(1L, 0L); Assert.assertEquals(StrictMath.max(0L, 0L), 0L); Assert.assertEquals(StrictMath.max(1L, 0L), 1L); Assert.assertEquals(StrictMath.max(0L, 1L), 1L); Assert.assertEquals(StrictMath.max(0L, Long.MAX_VALUE), Long.MAX_VALUE); Assert.assertEquals(StrictMath.max(Long.MIN_VALUE, 0L), 0L); Assert.assertEquals(StrictMath.max(Long.MIN_VALUE, Long.MAX_VALUE), Long.MAX_VALUE); } public static void test_StrictMath_min_F() { StrictMath.min(1.0f, Float.NaN); Assert.assertTrue(Float.isNaN(StrictMath.min(1.0f, Float.NaN))); Assert.assertTrue(Float.isNaN(StrictMath.min(Float.NaN, 1.0f))); Assert.assertEquals(StrictMath.min(-0.0f, 0.0f), -0.0f); Assert.assertEquals(StrictMath.min(0.0f, -0.0f), -0.0f); Assert.assertEquals(StrictMath.min(-0.0f, -0.0f), -0.0f); Assert.assertEquals(StrictMath.min(0.0f, 0.0f), 0.0f); Assert.assertEquals(StrictMath.min(1.0f, 0.0f), 0.0f); Assert.assertEquals(StrictMath.min(0.0f, 1.0f), 0.0f); Assert.assertEquals(StrictMath.min(0.0f, Float.MAX_VALUE), 0.0f); Assert.assertEquals(StrictMath.min(Float.MIN_VALUE, 0.0f), 0.0f); Assert.assertEquals(StrictMath.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE); } public static void test_StrictMath_max_F() { StrictMath.max(1.0f, Float.NaN); Assert.assertTrue(Float.isNaN(StrictMath.max(1.0f, Float.NaN))); Assert.assertTrue(Float.isNaN(StrictMath.max(Float.NaN, 1.0f))); Assert.assertEquals(StrictMath.max(-0.0f, 0.0f), 0.0f); Assert.assertEquals(StrictMath.max(0.0f, -0.0f), 0.0f); Assert.assertEquals(StrictMath.max(-0.0f, -0.0f), -0.0f); Assert.assertEquals(StrictMath.max(0.0f, 0.0f), 0.0f); Assert.assertEquals(StrictMath.max(1.0f, 0.0f), 1.0f); Assert.assertEquals(StrictMath.max(0.0f, 1.0f), 1.0f); Assert.assertEquals(StrictMath.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE); Assert.assertEquals(StrictMath.max(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE); Assert.assertEquals(StrictMath.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE); } public static void test_StrictMath_min_D() { StrictMath.min(1.0d, Double.NaN); Assert.assertTrue(Double.isNaN(StrictMath.min(1.0d, Double.NaN))); Assert.assertTrue(Double.isNaN(StrictMath.min(Double.NaN, 1.0d))); Assert.assertEquals(StrictMath.min(-0.0d, 0.0d), -0.0d); Assert.assertEquals(StrictMath.min(0.0d, -0.0d), -0.0d); Assert.assertEquals(StrictMath.min(-0.0d, -0.0d), -0.0d); Assert.assertEquals(StrictMath.min(0.0d, 0.0d), 0.0d); Assert.assertEquals(StrictMath.min(1.0d, 0.0d), 0.0d); Assert.assertEquals(StrictMath.min(0.0d, 1.0d), 0.0d); Assert.assertEquals(StrictMath.min(0.0d, Double.MAX_VALUE), 0.0d); Assert.assertEquals(StrictMath.min(Double.MIN_VALUE, 0.0d), 0.0d); Assert.assertEquals(StrictMath.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE); } public static void test_StrictMath_max_D() { StrictMath.max(1.0d, Double.NaN); Assert.assertTrue(Double.isNaN(StrictMath.max(1.0d, Double.NaN))); Assert.assertTrue(Double.isNaN(StrictMath.max(Double.NaN, 1.0d))); Assert.assertEquals(StrictMath.max(-0.0d, 0.0d), 0.0d); Assert.assertEquals(StrictMath.max(0.0d, -0.0d), 0.0d); Assert.assertEquals(StrictMath.max(-0.0d, -0.0d), -0.0d); Assert.assertEquals(StrictMath.max(0.0d, 0.0d), 0.0d); Assert.assertEquals(StrictMath.max(1.0d, 0.0d), 1.0d); Assert.assertEquals(StrictMath.max(0.0d, 1.0d), 1.0d); Assert.assertEquals(StrictMath.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE); Assert.assertEquals(StrictMath.max(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE); Assert.assertEquals(StrictMath.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE); } public static void test_StrictMath_sqrt() { StrictMath.sqrt(+4.0); Assert.assertEquals(StrictMath.sqrt(+4.0), +2.0d, 0.0); Assert.assertEquals(StrictMath.sqrt(+49.0), +7.0d, 0.0); Assert.assertEquals(StrictMath.sqrt(+1.44), +1.2d, 0.0); } public static void test_StrictMath_ceil() { StrictMath.ceil(-0.9); Assert.assertEquals(StrictMath.ceil(+0.0), +0.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-0.0), -0.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-0.9), -0.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-0.5), -0.0d, 0.0); Assert.assertEquals(StrictMath.ceil(0.0), -0.0d, 0.0); Assert.assertEquals(StrictMath.ceil(+2.0), +2.0d, 0.0); Assert.assertEquals(StrictMath.ceil(+2.1), +3.0d, 0.0); Assert.assertEquals(StrictMath.ceil(+2.5), +3.0d, 0.0); Assert.assertEquals(StrictMath.ceil(+2.9), +3.0d, 0.0); Assert.assertEquals(StrictMath.ceil(+3.0), +3.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-2.0), -2.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-2.1), -2.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-2.5), -2.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-2.9), -2.0d, 0.0); Assert.assertEquals(StrictMath.ceil(-3.0), -3.0d, 0.0); Assert.assertEquals(StrictMath.ceil(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(StrictMath.ceil(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(StrictMath.ceil(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_StrictMath_floor() { StrictMath.floor(+2.1); Assert.assertEquals(StrictMath.floor(+0.0), +0.0d, 0.0); Assert.assertEquals(StrictMath.floor(-0.0), -0.0d, 0.0); Assert.assertEquals(StrictMath.floor(+2.0), +2.0d, 0.0); Assert.assertEquals(StrictMath.floor(+2.1), +2.0d, 0.0); Assert.assertEquals(StrictMath.floor(+2.5), +2.0d, 0.0); Assert.assertEquals(StrictMath.floor(+2.9), +2.0d, 0.0); Assert.assertEquals(StrictMath.floor(+3.0), +3.0d, 0.0); Assert.assertEquals(StrictMath.floor(-2.0), -2.0d, 0.0); Assert.assertEquals(StrictMath.floor(-2.1), -3.0d, 0.0); Assert.assertEquals(StrictMath.floor(-2.5), -3.0d, 0.0); Assert.assertEquals(StrictMath.floor(-2.9), -3.0d, 0.0); Assert.assertEquals(StrictMath.floor(-3.0), -3.0d, 0.0); Assert.assertEquals(StrictMath.floor(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(StrictMath.floor(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(StrictMath.floor(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_StrictMath_rint() { StrictMath.rint(+2.1); Assert.assertEquals(StrictMath.rint(+0.0), +0.0d, 0.0); Assert.assertEquals(StrictMath.rint(-0.0), -0.0d, 0.0); Assert.assertEquals(StrictMath.rint(+2.0), +2.0d, 0.0); Assert.assertEquals(StrictMath.rint(+2.1), +2.0d, 0.0); Assert.assertEquals(StrictMath.rint(+2.5), +2.0d, 0.0); Assert.assertEquals(StrictMath.rint(+2.9), +3.0d, 0.0); Assert.assertEquals(StrictMath.rint(+3.0), +3.0d, 0.0); Assert.assertEquals(StrictMath.rint(-2.0), -2.0d, 0.0); Assert.assertEquals(StrictMath.rint(-2.1), -2.0d, 0.0); Assert.assertEquals(StrictMath.rint(-2.5), -2.0d, 0.0); Assert.assertEquals(StrictMath.rint(-2.9), -3.0d, 0.0); Assert.assertEquals(StrictMath.rint(-3.0), -3.0d, 0.0); Assert.assertEquals(StrictMath.rint(Double.NaN), Double.NaN, 0.0); Assert.assertEquals(StrictMath.rint(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0); Assert.assertEquals(StrictMath.rint(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0); } public static void test_StrictMath_round_D() { StrictMath.round(2.1d); Assert.assertEquals(StrictMath.round(+0.0d), (long)+0.0); Assert.assertEquals(StrictMath.round(-0.0d), (long)+0.0); Assert.assertEquals(StrictMath.round(2.0d), 2l); Assert.assertEquals(StrictMath.round(2.1d), 2l); Assert.assertEquals(StrictMath.round(2.5d), 3l); Assert.assertEquals(StrictMath.round(2.9d), 3l); Assert.assertEquals(StrictMath.round(3.0d), 3l); Assert.assertEquals(StrictMath.round(-2.0d), -2l); Assert.assertEquals(StrictMath.round(-2.1d), -2l); Assert.assertEquals(StrictMath.round(-2.5d), -2l); Assert.assertEquals(StrictMath.round(-2.9d), -3l); Assert.assertEquals(StrictMath.round(-3.0d), -3l); Assert.assertEquals(StrictMath.round(0.49999999999999994d), 1l); Assert.assertEquals(StrictMath.round(Double.NaN), (long)+0.0d); Assert.assertEquals(StrictMath.round(Long.MAX_VALUE + 1.0d), Long.MAX_VALUE); Assert.assertEquals(StrictMath.round(Long.MIN_VALUE - 1.0d), Long.MIN_VALUE); Assert.assertEquals(StrictMath.round(Double.POSITIVE_INFINITY), Long.MAX_VALUE); Assert.assertEquals(StrictMath.round(Double.NEGATIVE_INFINITY), Long.MIN_VALUE); } public static void test_StrictMath_round_F() { StrictMath.round(2.1f); Assert.assertEquals(StrictMath.round(+0.0f), (int)+0.0); Assert.assertEquals(StrictMath.round(-0.0f), (int)+0.0); Assert.assertEquals(StrictMath.round(2.0f), 2); Assert.assertEquals(StrictMath.round(2.1f), 2); Assert.assertEquals(StrictMath.round(2.5f), 3); Assert.assertEquals(StrictMath.round(2.9f), 3); Assert.assertEquals(StrictMath.round(3.0f), 3); Assert.assertEquals(StrictMath.round(-2.0f), -2); Assert.assertEquals(StrictMath.round(-2.1f), -2); Assert.assertEquals(StrictMath.round(-2.5f), -2); Assert.assertEquals(StrictMath.round(-2.9f), -3); Assert.assertEquals(StrictMath.round(-3.0f), -3); Assert.assertEquals(StrictMath.round(Float.NaN), (int)+0.0f); Assert.assertEquals(StrictMath.round(Integer.MAX_VALUE + 1.0f), Integer.MAX_VALUE); Assert.assertEquals(StrictMath.round(Integer.MIN_VALUE - 1.0f), Integer.MIN_VALUE); Assert.assertEquals(StrictMath.round(Float.POSITIVE_INFINITY), Integer.MAX_VALUE); Assert.assertEquals(StrictMath.round(Float.NEGATIVE_INFINITY), Integer.MIN_VALUE); } public static void test_Float_floatToRawIntBits() { Float.floatToRawIntBits(-1.0f); Assert.assertEquals(Float.floatToRawIntBits(-1.0f), 0xbf800000); Assert.assertEquals(Float.floatToRawIntBits(0.0f), 0); Assert.assertEquals(Float.floatToRawIntBits(1.0f), 0x3f800000); Assert.assertEquals(Float.floatToRawIntBits(Float.NaN), 0x7fc00000); Assert.assertEquals(Float.floatToRawIntBits(Float.POSITIVE_INFINITY), 0x7f800000); Assert.assertEquals(Float.floatToRawIntBits(Float.NEGATIVE_INFINITY), 0xff800000); } public static void test_Float_intBitsToFloat() { Float.intBitsToFloat(0xbf800000); Assert.assertEquals(Float.intBitsToFloat(0xbf800000), -1.0f); Assert.assertEquals(Float.intBitsToFloat(0x00000000), 0.0f); Assert.assertEquals(Float.intBitsToFloat(0x3f800000), 1.0f); Assert.assertEquals(Float.intBitsToFloat(0x7fc00000), Float.NaN); Assert.assertEquals(Float.intBitsToFloat(0x7f800000), Float.POSITIVE_INFINITY); Assert.assertEquals(Float.intBitsToFloat(0xff800000), Float.NEGATIVE_INFINITY); } public static void test_Double_doubleToRawLongBits() { Double.doubleToRawLongBits(-1.0); Assert.assertEquals(Double.doubleToRawLongBits(-1.0), 0xbff0000000000000L); Assert.assertEquals(Double.doubleToRawLongBits(0.0), 0x0000000000000000L); Assert.assertEquals(Double.doubleToRawLongBits(1.0), 0x3ff0000000000000L); Assert.assertEquals(Double.doubleToRawLongBits(Double.NaN), 0x7ff8000000000000L); Assert.assertEquals(Double.doubleToRawLongBits(Double.POSITIVE_INFINITY), 0x7ff0000000000000L); Assert.assertEquals(Double.doubleToRawLongBits(Double.NEGATIVE_INFINITY), 0xfff0000000000000L); } public static void test_Double_longBitsToDouble() { Double.longBitsToDouble(0xbff0000000000000L); Assert.assertEquals(Double.longBitsToDouble(0xbff0000000000000L), -1.0); Assert.assertEquals(Double.longBitsToDouble(0x0000000000000000L), 0.0); Assert.assertEquals(Double.longBitsToDouble(0x3ff0000000000000L), 1.0); Assert.assertEquals(Double.longBitsToDouble(0x7ff8000000000000L), Double.NaN); Assert.assertEquals(Double.longBitsToDouble(0x7ff0000000000000L), Double.POSITIVE_INFINITY); Assert.assertEquals(Double.longBitsToDouble(0xfff0000000000000L), Double.NEGATIVE_INFINITY); } public static void test_Short_reverseBytes() { Short.reverseBytes((short)0x1357); Assert.assertEquals(Short.reverseBytes((short)0x0000), (short)0x0000); Assert.assertEquals(Short.reverseBytes((short)0xffff), (short)0xffff); Assert.assertEquals(Short.reverseBytes((short)0x8000), (short)0x0080); Assert.assertEquals(Short.reverseBytes((short)0x0080), (short)0x8000); Assert.assertEquals(Short.reverseBytes((short)0x0123), (short)0x2301); Assert.assertEquals(Short.reverseBytes((short)0x4567), (short)0x6745); Assert.assertEquals(Short.reverseBytes((short)0x89ab), (short)0xab89); Assert.assertEquals(Short.reverseBytes((short)0xcdef), (short)0xefcd); } public static void test_Integer_reverseBytes() { Integer.reverseBytes(0x13579bdf); Assert.assertEquals(Integer.reverseBytes(0x00000000), 0x00000000); Assert.assertEquals(Integer.reverseBytes(0xffffffff), 0xffffffff); Assert.assertEquals(Integer.reverseBytes(0x80000000), 0x00000080); Assert.assertEquals(Integer.reverseBytes(0x00000080), 0x80000000); Assert.assertEquals(Integer.reverseBytes(0x01234567), 0x67452301); Assert.assertEquals(Integer.reverseBytes(0x89abcdef), 0xefcdab89); } public static void test_Long_reverseBytes() { Long.reverseBytes(0x13579bdf2468ace0L); Assert.assertEquals(Long.reverseBytes(0x0000000000000000L), 0x0000000000000000L); Assert.assertEquals(Long.reverseBytes(0xffffffffffffffffL), 0xffffffffffffffffL); Assert.assertEquals(Long.reverseBytes(0x8000000000000000L), 0x0000000000000080L); Assert.assertEquals(Long.reverseBytes(0x0000000000000080L), 0x8000000000000000L); Assert.assertEquals(Long.reverseBytes(0x0123456789abcdefL), 0xefcdab8967452301L); } public static void test_Integer_reverse() { Integer.reverse(0x12345678); Assert.assertEquals(Integer.reverse(1), 0x80000000); Assert.assertEquals(Integer.reverse(-1), 0xffffffff); Assert.assertEquals(Integer.reverse(0), 0); Assert.assertEquals(Integer.reverse(0x12345678), 0x1e6a2c48); Assert.assertEquals(Integer.reverse(0x87654321), 0x84c2a6e1); Assert.assertEquals(Integer.reverse(Integer.MAX_VALUE), 0xfffffffe); Assert.assertEquals(Integer.reverse(Integer.MIN_VALUE), 1); } public static void test_Long_reverse() { Long.reverse(0x1234567812345678L); Assert.assertEquals(Long.reverse(1L), 0x8000000000000000L); Assert.assertEquals(Long.reverse(-1L), 0xffffffffffffffffL); Assert.assertEquals(Long.reverse(0L), 0L); Assert.assertEquals(Long.reverse(0x1234567812345678L), 0x1e6a2c481e6a2c48L); Assert.assertEquals(Long.reverse(0x8765432187654321L), 0x84c2a6e184c2a6e1L); Assert.assertEquals(Long.reverse(Long.MAX_VALUE), 0xfffffffffffffffeL); Assert.assertEquals(Long.reverse(Long.MIN_VALUE), 1L); Assert.assertEquals(test_Long_reverse_b22324327(0xaaaaaaaaaaaaaaaaL, 0x5555555555555555L), 157472205507277347L); } // A bit more complicated than the above. Use local variables to stress register allocation. private static long test_Long_reverse_b22324327(long l1, long l2) { // A couple of local integers. Use them in a loop, so they get promoted. int i1 = 0, i2 = 1, i3 = 2, i4 = 3, i5 = 4, i6 = 5, i7 = 6, i8 = 7; for (int k = 0; k < 10; k++) { i1 += 1; i2 += 2; i3 += 3; i4 += 4; i5 += 5; i6 += 6; i7 += 7; i8 += 8; } // Do the Long.reverse() calls, save the results. long r1 = Long.reverse(l1); long r2 = Long.reverse(l2); // Some more looping with the ints. for (int k = 0; k < 10; k++) { i1 += 1; i2 += 2; i3 += 3; i4 += 4; i5 += 5; i6 += 6; i7 += 7; i8 += 8; } // Include everything in the result, so things are kept live. Try to be a little bit clever to // avoid things being folded somewhere. return (r1 / i1) + (r2 / i2) + i3 + i4 + i5 + i6 + i7 + i8; } static Object runtime; static Method address_of; static Method new_non_movable_array; static Method peek_byte; static Method peek_short; static Method peek_int; static Method peek_long; static Method poke_byte; static Method poke_short; static Method poke_int; static Method poke_long; public static void initSupportMethodsForPeekPoke() throws Exception { Class<?> vm_runtime = Class.forName("dalvik.system.VMRuntime"); Method get_runtime = vm_runtime.getDeclaredMethod("getRuntime"); runtime = get_runtime.invoke(null); address_of = vm_runtime.getDeclaredMethod("addressOf", Object.class); new_non_movable_array = vm_runtime.getDeclaredMethod("newNonMovableArray", Class.class, Integer.TYPE); Class<?> io_memory = Class.forName("libcore.io.Memory"); peek_byte = io_memory.getDeclaredMethod("peekByte", Long.TYPE); peek_int = io_memory.getDeclaredMethod("peekInt", Long.TYPE, Boolean.TYPE); peek_short = io_memory.getDeclaredMethod("peekShort", Long.TYPE, Boolean.TYPE); peek_long = io_memory.getDeclaredMethod("peekLong", Long.TYPE, Boolean.TYPE); poke_byte = io_memory.getDeclaredMethod("pokeByte", Long.TYPE, Byte.TYPE); poke_short = io_memory.getDeclaredMethod("pokeShort", Long.TYPE, Short.TYPE, Boolean.TYPE); poke_int = io_memory.getDeclaredMethod("pokeInt", Long.TYPE, Integer.TYPE, Boolean.TYPE); poke_long = io_memory.getDeclaredMethod("pokeLong", Long.TYPE, Long.TYPE, Boolean.TYPE); } public static void test_Memory_peekByte() throws Exception { byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 2); b[0] = 0x12; b[1] = 0x11; long address = (long)address_of.invoke(runtime, b); Assert.assertEquals((byte)peek_byte.invoke(null, address), 0x12); Assert.assertEquals((byte)peek_byte.invoke(null, address + 1), 0x11); } public static void test_Memory_peekShort() throws Exception { byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 3); b[0] = 0x13; b[1] = 0x12; b[2] = 0x11; long address = (long)address_of.invoke(runtime, b); peek_short.invoke(null, address, false); Assert.assertEquals((short)peek_short.invoke(null, address, false), 0x1213); // Aligned read Assert.assertEquals((short)peek_short.invoke(null, address + 1, false), 0x1112); // Unaligned read } public static void test_Memory_peekInt() throws Exception { byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 5); b[0] = 0x15; b[1] = 0x14; b[2] = 0x13; b[3] = 0x12; b[4] = 0x11; long address = (long)address_of.invoke(runtime, b); peek_int.invoke(null, address, false); Assert.assertEquals((int)peek_int.invoke(null, address, false), 0x12131415); Assert.assertEquals((int)peek_int.invoke(null, address + 1, false), 0x11121314); } public static void test_Memory_peekLong() throws Exception { byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 9); b[0] = 0x19; b[1] = 0x18; b[2] = 0x17; b[3] = 0x16; b[4] = 0x15; b[5] = 0x14; b[6] = 0x13; b[7] = 0x12; b[8] = 0x11; long address = (long)address_of.invoke(runtime, b); peek_long.invoke(null, address, false); Assert.assertEquals((long)peek_long.invoke(null, address, false), 0x1213141516171819L); Assert.assertEquals((long)peek_long.invoke(null, address + 1, false), 0x1112131415161718L); } public static void test_Memory_pokeByte() throws Exception { byte[] r = {0x11, 0x12}; byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 2); long address = (long)address_of.invoke(runtime, b); poke_byte.invoke(null, address, (byte)0x11); poke_byte.invoke(null, address + 1, (byte)0x12); Assert.assertTrue(Arrays.equals(r, b)); } public static void test_Memory_pokeShort() throws Exception { byte[] ra = {0x12, 0x11, 0x13}; byte[] ru = {0x12, 0x22, 0x21}; byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 3); long address = (long)address_of.invoke(runtime, b); // Aligned write b[2] = 0x13; poke_short.invoke(null, address, (short)0x1112, false); Assert.assertTrue(Arrays.equals(ra, b)); // Unaligned write poke_short.invoke(null, address + 1, (short)0x2122, false); Assert.assertTrue(Arrays.equals(ru, b)); } public static void test_Memory_pokeInt() throws Exception { byte[] ra = {0x14, 0x13, 0x12, 0x11, 0x15}; byte[] ru = {0x14, 0x24, 0x23, 0x22, 0x21}; byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 5); long address = (long)address_of.invoke(runtime, b); b[4] = 0x15; poke_int.invoke(null, address, (int)0x11121314, false); Assert.assertTrue(Arrays.equals(ra, b)); poke_int.invoke(null, address + 1, (int)0x21222324, false); Assert.assertTrue(Arrays.equals(ru, b)); } public static void test_Memory_pokeLong() throws Exception { byte[] ra = {0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x19}; byte[] ru = {0x18, 0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21}; byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 9); long address = (long)address_of.invoke(runtime, b); b[8] = 0x19; poke_long.invoke(null, address, (long)0x1112131415161718L, false); Assert.assertTrue(Arrays.equals(ra, b)); poke_long.invoke(null, address + 1, (long)0x2122232425262728L, false); Assert.assertTrue(Arrays.equals(ru, b)); } }