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/*
* Copyright 2023 Google LLC
*
* 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.auto.value.processor;
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.testing.compile.JavaFileObjects;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import javax.tools.Diagnostic;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.ToolProvider;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public final class AutoValueModuleCompilationTest {
@Rule public final TemporaryFolder temporaryFolder = new TemporaryFolder();
/**
* This test currently confirms that AutoValue has a bug with module handling. If your AutoValue
* class inherits an abstract method from a module, and that abstract method has an annotation
* that is not exported from the module, then AutoValue will incorrectly try to copy the
* annotation onto the generated implementation of the abstract method.
*/
@Test
public void nonVisibleMethodAnnotationFromOtherModule() throws Exception {
JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
Path tempDir = temporaryFolder.newFolder().toPath();
Path srcDir = tempDir.resolve("src");
Path outDir = tempDir.resolve("out");
Path fooOut = outDir.resolve("foo");
writeFile(srcDir, "foo/module-info.java", "module foo {", " exports foo.exported;", "}");
writeFile(
srcDir,
"foo/exported/Foo.java",
"package foo.exported;",
"",
"import foo.unexported.UnexportedAnnotation;",
"",
"public interface Foo {",
" @ExportedAnnotation",
" @UnexportedAnnotation",
" String name();",
"}");
writeFile(
srcDir,
"foo/exported/ExportedAnnotation.java",
"package foo.exported;",
"",
"import java.lang.annotation.*;",
"",
"@Retention(RetentionPolicy.RUNTIME)",
"public @interface ExportedAnnotation {}");
writeFile(
srcDir,
"foo/unexported/UnexportedAnnotation.java",
"package foo.unexported;",
"",
"import java.lang.annotation.*;",
"",
"@Retention(RetentionPolicy.RUNTIME)",
"public @interface UnexportedAnnotation {}");
JavaCompiler.CompilationTask fooCompilationTask =
javaCompiler.getTask(
/* out= */ null,
/* fileManager= */ null,
/* diagnosticListener= */ null,
/* options= */ ImmutableList.of(
"--module",
"foo",
"-d",
outDir.toString(),
"--module-source-path",
srcDir.toString()),
/* classes= */ null,
/* compilationUnits= */ null);
fooCompilationTask.setProcessors(ImmutableList.of(new AutoValueProcessor()));
boolean fooSuccess = fooCompilationTask.call();
assertThat(fooSuccess).isTrue();
JavaFileObject barFile =
JavaFileObjects.forSourceLines(
"bar.Value",
"package bar;",
"",
"import com.google.auto.value.AutoValue;",
"import foo.exported.Foo;",
"",
"@AutoValue",
"public abstract class Value implements Foo {",
" public static Value of(String name) {",
" return new AutoValue_Value(name);",
" }",
"}");
List<Diagnostic<?>> diagnostics = new ArrayList<>();
JavaCompiler.CompilationTask barCompilationTask =
javaCompiler.getTask(
/* out= */ null,
/* fileManager= */ null,
/* diagnosticListener= */ diagnostics::add,
/* options= */ ImmutableList.of(
"-d",
outDir.toString(),
"--module-path",
fooOut.toString(),
"--add-modules",
"foo"),
/* classes= */ null,
/* compilationUnits= */ ImmutableList.of(barFile));
boolean barSuccess = barCompilationTask.call();
assertThat(barSuccess).isFalse();
assertThat(
diagnostics.stream()
.map(d -> d.getMessage(Locale.ROOT))
.collect(toImmutableList())
.toString())
.contains("package foo.unexported is declared in module foo, which does not export it");
}
private static void writeFile(Path srcDir, String relativeName, String... lines)
throws IOException {
Path path = srcDir.resolve(relativeName);
Files.createDirectories(path.getParent());
Files.writeString(path, String.join("\n", lines));
}
}
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