| // Copyright (c) 2020, 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.desugaredlibrary; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.function.Supplier; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class RequiredNonNullWithSupplierTest extends DesugaredLibraryTestBase { |
| |
| private static final String EXPECTED_OUTPUT = StringUtils.lines("SuppliedString2", "OK"); |
| |
| private final TestParameters parameters; |
| private final boolean shrinkDesugaredLibrary; |
| |
| @Parameterized.Parameters(name = "{1}, shrinkDesugaredLibrary: {0}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| BooleanUtils.values(), getTestParameters().withAllRuntimesAndApiLevels().build()); |
| } |
| |
| public RequiredNonNullWithSupplierTest( |
| boolean shrinkDesugaredLibrary, TestParameters parameters) { |
| this.shrinkDesugaredLibrary = shrinkDesugaredLibrary; |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRequiredNonNullWithSupplierTest() throws Exception { |
| if (parameters.isCfRuntime()) { |
| testForJvm() |
| .addInnerClasses(RequiredNonNullWithSupplierTest.class) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| return; |
| } |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForD8() |
| .addLibraryFiles(getLibraryFile()) |
| .addInnerClasses(RequiredNonNullWithSupplierTest.class) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, |
| parameters.getApiLevel(), |
| keepRuleConsumer.get(), |
| shrinkDesugaredLibrary) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| } |
| |
| static class Executor { |
| |
| public static void main(String[] args) { |
| Object o = System.currentTimeMillis() > 10 ? new Object() : new Object(); |
| Objects.requireNonNull(o, () -> "SuppliedString"); |
| try { |
| Objects.requireNonNull(null, () -> "SuppliedString2"); |
| throw new AssertionError("Unexpected"); |
| } catch (NullPointerException e) { |
| System.out.println(e.getMessage()); |
| } |
| try { |
| Objects.requireNonNull(null, (Supplier<String>) null); |
| throw new AssertionError("Unexpected"); |
| } catch (NullPointerException e) { |
| // Normally we would want to print the exception message, but some ART versions have a bug |
| // where they erroneously calls supplier.get() on a null reference which produces the NPE |
| // but with an ART-defined message. See b/147419222. |
| System.out.println("OK"); |
| } |
| } |
| } |
| } |