| // Copyright (c) 2021, 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.ir.optimize.library; |
| |
| import static com.android.tools.r8.utils.codeinspector.CodeMatchers.invokesMethodWithHolderAndName; |
| import static com.android.tools.r8.utils.codeinspector.CodeMatchers.invokesMethodWithName; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.notIf; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.onlyIf; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import java.util.Objects; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class ObjectsEqualsTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters() |
| .withDexRuntimes() |
| .withApiLevelsStartingAtIncluding(AndroidApiLevel.K) |
| .build(); |
| } |
| |
| public ObjectsEqualsTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject mainClassSubject = inspector.clazz(Main.class); |
| assertThat(mainClassSubject, isPresent()); |
| |
| MethodSubject testNonNullArgumentsMethodSubject = |
| mainClassSubject.uniqueMethodWithName("testNonNullArguments"); |
| assertThat(testNonNullArgumentsMethodSubject, isPresent()); |
| assertThat( |
| testNonNullArgumentsMethodSubject, |
| not(invokesMethodWithHolderAndName("java.util.Objects", "equals"))); |
| assertThat( |
| testNonNullArgumentsMethodSubject, |
| invokesMethodWithHolderAndName("java.lang.Object", "equals")); |
| |
| MethodSubject testNullAndNullArgumentsMethodSubject = |
| mainClassSubject.uniqueMethodWithName("testNullAndNullArguments"); |
| assertThat(testNullAndNullArgumentsMethodSubject, isPresent()); |
| assertThat( |
| testNullAndNullArgumentsMethodSubject, not(invokesMethodWithName("equals"))); |
| |
| MethodSubject testNullAndNonNullArgumentsMethodSubject = |
| mainClassSubject.uniqueMethodWithName("testNullAndNonNullArguments"); |
| assertThat(testNullAndNonNullArgumentsMethodSubject, isPresent()); |
| assertThat( |
| testNullAndNonNullArgumentsMethodSubject, not(invokesMethodWithName("equals"))); |
| |
| MethodSubject testNullAndMaybeNullArgumentsMethodSubject = |
| mainClassSubject.uniqueMethodWithName("testNullAndMaybeNullArguments"); |
| assertThat(testNullAndMaybeNullArgumentsMethodSubject, isPresent()); |
| assertThat( |
| testNullAndMaybeNullArgumentsMethodSubject, |
| notIf(invokesMethodWithName("equals"), canUseJavaUtilObjectsIsNull(parameters))); |
| assertThat( |
| testNullAndMaybeNullArgumentsMethodSubject, |
| onlyIf(canUseJavaUtilObjectsIsNull(parameters), invokesMethodWithName("isNull"))); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("false", "true", "false", "false"); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| testNonNullArguments(); |
| testNullAndNullArguments(); |
| testNullAndNonNullArguments(); |
| testNullAndMaybeNullArguments(); |
| } |
| |
| @NeverInline |
| static void testNonNullArguments() { |
| System.out.println(Objects.equals(new Object(), new Object())); |
| } |
| |
| @NeverInline |
| static void testNullAndNullArguments() { |
| System.out.println(Objects.equals(null, null)); |
| } |
| |
| @NeverInline |
| static void testNullAndNonNullArguments() { |
| System.out.println(Objects.equals(null, new Object())); |
| } |
| |
| @NeverInline |
| static void testNullAndMaybeNullArguments() { |
| System.out.println( |
| Objects.equals(null, System.currentTimeMillis() > 0 ? new Object() : null)); |
| } |
| } |
| } |