blob: 1c3c89ea3d58e09c8230141255abdc30691792da [file] [log] [blame]
/*
* 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_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_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();
}
/*
* Determine if two floating point numbers are approximately equal.
*
* (Assumes that floating point is generally working, so we can't use
* this for the first set of tests.)
*/
static boolean approxEqual(float a, float b, float maxDelta) {
if (a > b)
return (a - b) < maxDelta;
else
return (b - a) < maxDelta;
}
static boolean approxEqual(double a, double b, double maxDelta) {
if (a > b)
return (a - b) < maxDelta;
else
return (b - a) < maxDelta;
}
/**
* 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) {
}
}
public static void test_String_charAt() {
String testStr = "Now is the time";
Assert.assertEquals('N', testStr.charAt(0));
Assert.assertEquals('o', testStr.charAt(1));
Assert.assertEquals(' ', testStr.charAt(10));
Assert.assertEquals('e', testStr.charAt(testStr.length()-1));
try {
testStr.charAt(-1);
Assert.fail();
} catch (StringIndexOutOfBoundsException expected) {
}
try {
testStr.charAt(80);
Assert.fail();
} catch (StringIndexOutOfBoundsException expected) {
}
String strNull = null;
try {
strNull.charAt(0);
Assert.fail();
} catch (NullPointerException expected) {
}
}
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";
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(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);
String strNull = null;
try {
strNull.indexOf('a');
Assert.fail();
} catch (NullPointerException expected) {
}
try {
strNull.indexOf('a', 0);
Assert.fail();
} catch (NullPointerException expected) {
}
try {
strNull.indexOf('a', -1);
Assert.fail();
} catch (NullPointerException expected) {
}
}
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() {
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() {
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);
}
public static void test_Math_min_I() {
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() {
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() {
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() {
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() {
Assert.assertTrue(approxEqual(Math.min(0.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.min(1.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.min(0.0f, 1.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.min(0.0f, Float.MAX_VALUE), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.min(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE, 0.001f));
Assert.assertTrue(approxEqual(Math.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE, 0.001f));
}
public static void test_Math_max_F() {
Assert.assertTrue(approxEqual(Math.max(0.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.max(1.0f, 0.0f), 1.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.max(0.0f, 1.0f), 1.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE, 0.001f));
Assert.assertTrue(approxEqual(Math.max(Float.MIN_VALUE, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(Math.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE, 0.001f));
}
public static void test_Math_min_D() {
Assert.assertTrue(approxEqual(Math.min(0.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.min(1.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.min(0.0d, 1.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.min(0.0d, Double.MAX_VALUE), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.min(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE, 0.001d));
Assert.assertTrue(approxEqual(Math.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE, 0.001d));
}
public static void test_Math_max_D() {
Assert.assertTrue(approxEqual(Math.max(0.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.max(1.0d, 0.0d), 1.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.max(0.0d, 1.0d), 1.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE, 0.001d));
Assert.assertTrue(approxEqual(Math.max(Double.MIN_VALUE, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(Math.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE, 0.001d));
}
public static void test_StrictMath_abs_I() {
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() {
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() {
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() {
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() {
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() {
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() {
Assert.assertTrue(approxEqual(StrictMath.min(0.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.min(1.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.min(0.0f, 1.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.min(0.0f, Float.MAX_VALUE), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.min(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE, 0.001f));
}
public static void test_StrictMath_max_F() {
Assert.assertTrue(approxEqual(StrictMath.max(0.0f, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.max(1.0f, 0.0f), 1.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.max(0.0f, 1.0f), 1.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.max(Float.MIN_VALUE, 0.0f), 0.0f, 0.001f));
Assert.assertTrue(approxEqual(StrictMath.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE, 0.001f));
}
public static void test_StrictMath_min_D() {
Assert.assertTrue(approxEqual(StrictMath.min(0.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.min(1.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.min(0.0d, 1.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.min(0.0d, Double.MAX_VALUE), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.min(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE, 0.001d));
}
public static void test_StrictMath_max_D() {
Assert.assertTrue(approxEqual(StrictMath.max(0.0d, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.max(1.0d, 0.0d), 1.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.max(0.0d, 1.0d), 1.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.max(Double.MIN_VALUE, 0.0d), 0.0d, 0.001d));
Assert.assertTrue(approxEqual(StrictMath.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE, 0.001d));
}
public static void test_Float_floatToRawIntBits() {
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() {
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() {
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() {
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() {
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() {
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() {
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() {
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() {
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);
}
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);
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);
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);
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));
}
}