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// 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.naming;
import static com.android.tools.r8.DiagnosticsMatcher.diagnosticMessage;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresentAndRenamed;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThrows;
import static org.junit.Assume.assumeTrue;
import com.android.tools.r8.CompilationFailedException;
import com.android.tools.r8.R8TestCompileResult;
import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import com.android.tools.r8.naming.testclasses.A;
import com.android.tools.r8.naming.testclasses.B;
import com.android.tools.r8.utils.FileUtils;
import java.io.IOException;
import java.nio.file.Path;
import java.util.concurrent.ExecutionException;
import java.util.function.Function;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
/** This test is designed to test the workaround for b/149946708. */
@RunWith(Parameterized.class)
public class ClassNameMinifierOriginalClassNameTest extends TestBase {
private final TestParameters parameters;
@Parameters(name = "{0}")
public static TestParametersCollection data() {
return getTestParameters().withAllRuntimesAndApiLevels().build();
}
public ClassNameMinifierOriginalClassNameTest(TestParameters parameters) {
this.parameters = parameters;
}
private static Function<TestParameters, R8TestCompileResult> compilationResults =
memoizeFunction(ClassNameMinifierOriginalClassNameTest::compile);
private static R8TestCompileResult compile(TestParameters parameters)
throws CompilationFailedException, IOException, ExecutionException {
// Adding the obfuscation dictionary just ensures that we assign a name to B that will collide
// independent of minification scheme.
Path dictionary = getStaticTemp().newFolder().toPath().resolve("dictionary.txt");
FileUtils.writeTextFile(dictionary, "A");
return testForR8(getStaticTemp(), parameters.getBackend())
.addProgramClasses(A.class, B.class)
.addKeepClassAndMembersRulesWithAllowObfuscation(B.class)
.addKeepRules("-classobfuscationdictionary " + dictionary.toString(), "-keeppackagenames")
.setMinApi(parameters.getApiLevel())
.compile()
.inspect(
inspector -> {
assertEquals(1, inspector.allClasses().size());
assertThat(inspector.clazz(B.class), isPresentAndRenamed());
assertEquals(A.class.getTypeName(), inspector.clazz(B.class).getFinalName());
});
}
@Test
public void testR8() throws ExecutionException, CompilationFailedException, IOException {
R8TestCompileResult libraryCompileResult = compilationResults.apply(parameters);
testForR8(parameters.getBackend())
.addProgramClasses(Main.class)
.setMinApi(parameters.getApiLevel())
.addKeepMainRule(Main.class)
.noMinification()
.addClasspathClasses(A.class, B.class)
.addApplyMapping(libraryCompileResult.getProguardMap())
.compile()
.addRunClasspathFiles(libraryCompileResult.writeToZip())
.run(parameters.getRuntime(), Main.class)
.assertSuccessWithOutputLines("B.foo");
}
@Test
public void testR8WithReferenceToNotMapped() {
assumeTrue(parameters.isDexRuntime());
R8TestCompileResult libraryCompileResult = compilationResults.apply(parameters);
assertThrows(
CompilationFailedException.class,
() ->
testForR8(parameters.getBackend())
.addProgramClasses(MainWithReferenceToNotMapped.class)
.setMinApi(parameters.getApiLevel())
.addKeepMainRule(MainWithReferenceToNotMapped.class)
.noMinification()
.addClasspathClasses(A.class, B.class)
.addApplyMapping(libraryCompileResult.getProguardMap())
.allowDiagnosticWarningMessages()
.compileWithExpectedDiagnostics(
diagnostics ->
diagnostics.assertAllWarningsMatch(
diagnosticMessage(
containsString(
"'"
+ B.class.getTypeName()
+ "' cannot be mapped to '"
+ A.class.getTypeName()
+ "' because it is in conflict")))));
}
public static class Main {
public static void main(String[] args) {
new B().foo();
}
}
public static class MainWithReferenceToNotMapped {
public static void main(String[] args) {
System.out.println(new A());
new B().foo();
}
}
}