| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // 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. |
| |
| package com.google.devtools.build.android.desugar.nest; |
| |
| import static com.google.common.collect.ImmutableList.toImmutableList; |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.android.desugar.io.FileContentProvider; |
| import com.google.devtools.build.android.desugar.io.JarItem; |
| import com.google.devtools.build.android.desugar.preanalysis.InputPreAnalyzer; |
| import com.google.devtools.build.android.desugar.testing.junit.DesugarRule; |
| import com.google.devtools.build.android.desugar.testing.junit.DesugarRunner; |
| import com.google.devtools.build.android.desugar.testing.junit.JdkSuppress; |
| import com.google.devtools.build.android.desugar.testing.junit.JdkVersion; |
| import com.google.devtools.build.android.desugar.testing.junit.RuntimeJarEntry; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.invoke.MethodHandles; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.objectweb.asm.Attribute; |
| |
| /** The tests for {@link NestAnalyzer}. */ |
| @RunWith(DesugarRunner.class) |
| @JdkSuppress(minJdkVersion = JdkVersion.V11) |
| public final class NestAnalyzerTest { |
| |
| @Rule |
| public final DesugarRule desugarRule = |
| DesugarRule.builder(this, MethodHandles.lookup()) |
| .addSourceInputsFromJvmFlag("input_srcs") |
| .addJavacOptions("-source 11", "-target 11") |
| .setWorkingJavaPackage( |
| "com.google.devtools.build.android.desugar.nest.testsrc.nestanalyzer") |
| .enableIterativeTransformation(0) |
| .build(); |
| |
| @Test |
| public void emptyInputFiles() throws IOException { |
| InputPreAnalyzer inputPreAnalyzer = |
| new InputPreAnalyzer(/* inputFileContents= */ ImmutableList.of(), new Attribute[] {}); |
| inputPreAnalyzer.process(); |
| NestDigest nestDigest = |
| NestAnalyzer.digest( |
| inputPreAnalyzer.getClassAttributeRecord(), inputPreAnalyzer.getClassMemberRecord()); |
| |
| assertThat(nestDigest.getAllCompanionClassNames()).isEmpty(); |
| } |
| |
| @Test |
| public void companionClassGeneration( |
| @RuntimeJarEntry( |
| value = "AnalyzedTarget.class", |
| round = 0) // Without desugaring at zero-th round. |
| JarItem analyzedTarget) |
| throws IOException { |
| JarFile jarFile = analyzedTarget.jarFile(); |
| |
| InputPreAnalyzer inputPreAnalyzer = |
| new InputPreAnalyzer( |
| jarFile.stream() |
| .map( |
| entry -> |
| new FileContentProvider<>( |
| entry.getName(), () -> getJarEntryInputStream(jarFile, entry))) |
| .collect(toImmutableList()), |
| new Attribute[] {}); |
| inputPreAnalyzer.process(); |
| NestDigest nestDigest = |
| NestAnalyzer.digest( |
| inputPreAnalyzer.getClassAttributeRecord(), inputPreAnalyzer.getClassMemberRecord()); |
| |
| assertThat(nestDigest.getAllCompanionClassNames()) |
| .containsExactly( |
| "com/google/devtools/build/android/desugar/nest/testsrc/nestanalyzer/AnalyzedTarget$NestCC"); |
| } |
| |
| private static InputStream getJarEntryInputStream(JarFile jarFile, JarEntry entry) { |
| try { |
| return jarFile.getInputStream(entry); |
| } catch (IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| } |