| // 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.string; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.codeinspector.InstructionSubject; |
| 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 ObjectsToStringOnLibraryClassTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ObjectsToStringOnLibraryClassTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect( |
| inspector -> { |
| MethodSubject mainMethodSubject = inspector.clazz(Main.class).mainMethod(); |
| assertThat(mainMethodSubject, isPresent()); |
| assertTrue( |
| mainMethodSubject |
| .streamInstructions() |
| .filter(InstructionSubject::isInvoke) |
| .allMatch( |
| x -> |
| x.getMethod() |
| .getName() |
| .toSourceString() |
| .equals("currentTimeMillis"))); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithEmptyOutput(); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| boolean unknown = System.currentTimeMillis() > 0; |
| |
| // Boolean. |
| Objects.toString(unknown ? Boolean.FALSE : null); |
| Objects.toString(unknown ? Boolean.TRUE : null); |
| |
| // Byte. |
| Objects.toString(unknown ? Byte.valueOf((byte) 0) : null); |
| |
| // Char. |
| Objects.toString(unknown ? Character.valueOf((char) 0) : null); |
| |
| // Double. |
| Objects.toString(unknown ? Double.valueOf(0) : null); |
| |
| // Float. |
| Objects.toString(unknown ? Float.valueOf(0) : null); |
| |
| // Integer. |
| Objects.toString(unknown ? Integer.valueOf(0) : null); |
| |
| // Long. |
| Objects.toString(unknown ? Long.valueOf(0) : null); |
| |
| // Short. |
| Objects.toString(unknown ? Short.valueOf((short) 0) : null); |
| |
| // String. |
| Objects.toString(unknown ? "null" : null); |
| Objects.toString(unknown ? new String("null") : null); |
| |
| // StringBuffer, StringBuilder. |
| Objects.toString(unknown ? new StringBuffer() : null); |
| Objects.toString(unknown ? new StringBuilder() : null); |
| } |
| } |
| } |