| // Copyright (c) 2019, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.desugar.backports; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public final class BooleanBackportTest extends AbstractBackportTest { |
| @Parameters(name = "{0}") |
| public static Iterable<?> data() { |
| return getTestParameters() |
| .withAllRuntimesAndApiLevels() |
| .build(); |
| } |
| |
| public BooleanBackportTest(TestParameters parameters) { |
| super(parameters, Boolean.class, Main.class); |
| registerTarget(AndroidApiLevel.N, 20); |
| registerTarget(AndroidApiLevel.K, 4); |
| } |
| |
| static final class Main extends MiniAssert { |
| public static void main(String[] args) { |
| testHashCode(); |
| testCompare(); |
| testLogicalAnd(); |
| testLogicalOr(); |
| testLogicalXor(); |
| } |
| |
| private static void testHashCode() { |
| assertEquals(1231, Boolean.hashCode(true)); |
| assertEquals(1237, Boolean.hashCode(false)); |
| } |
| |
| private static void testCompare() { |
| assertTrue(Boolean.compare(true, false) > 0); |
| assertTrue(Boolean.compare(true, true) == 0); |
| assertTrue(Boolean.compare(false, false) == 0); |
| assertTrue(Boolean.compare(false, true) < 0); |
| } |
| |
| private static void testLogicalAnd() { |
| assertTrue(Boolean.logicalAnd(true, true)); |
| assertFalse(Boolean.logicalAnd(true, false)); |
| assertFalse(Boolean.logicalAnd(false, true)); |
| assertFalse(Boolean.logicalAnd(false, false)); |
| |
| // Ensure optimization does not short-circuit path to second boolean. |
| sideEffectCount = 0; |
| assertFalse(Boolean.logicalAnd(sideEffectFalse(), sideEffectFalse())); |
| assertEquals(2, sideEffectCount); |
| } |
| |
| private static void testLogicalOr() { |
| assertTrue(Boolean.logicalOr(true, true)); |
| assertTrue(Boolean.logicalOr(true, false)); |
| assertTrue(Boolean.logicalOr(false, true)); |
| assertFalse(Boolean.logicalOr(false, false)); |
| |
| // Ensure optimization does not short-circuit path to second boolean. |
| sideEffectCount = 0; |
| assertTrue(Boolean.logicalOr(sideEffectTrue(), sideEffectTrue())); |
| assertEquals(2, sideEffectCount); |
| } |
| |
| private static void testLogicalXor() { |
| assertFalse(Boolean.logicalXor(true, true)); |
| assertTrue(Boolean.logicalXor(true, false)); |
| assertTrue(Boolean.logicalXor(false, true)); |
| assertFalse(Boolean.logicalXor(false, false)); |
| } |
| |
| private static int sideEffectCount; |
| private static boolean sideEffectTrue() { |
| sideEffectCount++; |
| return true; |
| } |
| private static boolean sideEffectFalse() { |
| sideEffectCount++; |
| return false; |
| } |
| } |
| } |