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/*
* Copyright 2008 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.service.processor;
import static com.google.auto.service.processor.AutoServiceProcessor.MISSING_SERVICES_ERROR;
import static com.google.testing.compile.CompilationSubject.assertThat;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.io.Resources;
import com.google.testing.compile.Compilation;
import com.google.testing.compile.Compiler;
import com.google.testing.compile.JavaFileObjects;
import javax.tools.StandardLocation;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests the {@link AutoServiceProcessor}. */
@RunWith(JUnit4.class)
public class AutoServiceProcessorTest {
@Test
public void autoService() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.compile(
JavaFileObjects.forResource("test/SomeService.java"),
JavaFileObjects.forResource("test/SomeServiceProvider1.java"),
JavaFileObjects.forResource("test/SomeServiceProvider2.java"),
JavaFileObjects.forResource("test/Enclosing.java"),
JavaFileObjects.forResource("test/AnotherService.java"),
JavaFileObjects.forResource("test/AnotherServiceProvider.java"));
assertThat(compilation).succeededWithoutWarnings();
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.SomeService")
.hasContents(
Resources.asByteSource(Resources.getResource("META-INF/services/test.SomeService")));
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.AnotherService")
.hasContents(
Resources.asByteSource(Resources.getResource("META-INF/services/test.AnotherService")));
}
@Test
public void multiService() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.compile(
JavaFileObjects.forResource("test/SomeService.java"),
JavaFileObjects.forResource("test/AnotherService.java"),
JavaFileObjects.forResource("test/MultiServiceProvider.java"));
assertThat(compilation).succeededWithoutWarnings();
// We have @AutoService({SomeService.class, AnotherService.class}) class MultiServiceProvider.
// So we expect META-INF/services/test.SomeService with contents that name MultiServiceProvider
// and likewise META-INF/services/test.AnotherService.
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.SomeService")
.contentsAsUtf8String()
.isEqualTo("test.MultiServiceProvider\n");
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.AnotherService")
.contentsAsUtf8String()
.isEqualTo("test.MultiServiceProvider\n");
}
@Test
public void badMultiService() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.compile(JavaFileObjects.forResource("test/NoServices.java"));
assertThat(compilation).failed();
assertThat(compilation).hadErrorContaining(MISSING_SERVICES_ERROR);
}
@Test
public void generic() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.compile(
JavaFileObjects.forResource("test/GenericService.java"),
JavaFileObjects.forResource("test/GenericServiceProvider.java"));
assertThat(compilation).succeededWithoutWarnings();
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.GenericService")
.contentsAsUtf8String()
.isEqualTo("test.GenericServiceProvider\n");
}
@Test
public void genericWithVerifyOption() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.withOptions("-Averify=true")
.compile(
JavaFileObjects.forResource("test/GenericService.java"),
JavaFileObjects.forResource("test/GenericServiceProvider.java"));
assertThat(compilation).succeeded();
assertThat(compilation)
.hadWarningContaining(
"Service provider test.GenericService is generic, so it can't be named exactly by"
+ " @AutoService. If this is OK, add @SuppressWarnings(\"rawtypes\").");
}
@Test
public void genericWithVerifyOptionAndSuppressWarings() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.withOptions("-Averify=true")
.compile(
JavaFileObjects.forResource("test/GenericService.java"),
JavaFileObjects.forResource("test/GenericServiceProviderSuppressWarnings.java"));
assertThat(compilation).succeededWithoutWarnings();
}
@Test
public void nestedGenericWithVerifyOptionAndSuppressWarnings() {
Compilation compilation =
Compiler.javac()
.withProcessors(new AutoServiceProcessor())
.withOptions("-Averify=true")
.compile(
JavaFileObjects.forResource("test/GenericService.java"),
JavaFileObjects.forResource("test/EnclosingGeneric.java"));
assertThat(compilation).succeededWithoutWarnings();
assertThat(compilation)
.generatedFile(StandardLocation.CLASS_OUTPUT, "META-INF/services/test.GenericService")
.contentsAsUtf8String()
.isEqualTo("test.EnclosingGeneric$GenericServiceProvider\n");
}
@Test
public void missing() {
AutoServiceProcessor processor = new AutoServiceProcessor();
Compilation compilation =
Compiler.javac()
.withProcessors(processor)
.withOptions("-Averify=true")
.compile(
JavaFileObjects.forResource(
"test/GenericServiceProviderWithMissingServiceClass.java"));
assertThat(compilation).failed();
assertThat(processor.exceptionStacks()).isEmpty();
}
}
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