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// Copyright 2015 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.testing.junit.runner.junit4;
import static com.google.inject.multibindings.Multibinder.newSetBinder;
import com.google.common.base.Optional;
import com.google.common.base.Ticker;
import com.google.common.collect.ImmutableList;
import com.google.common.io.ByteStreams;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Singleton;
import com.google.inject.multibindings.Multibinder;
import com.google.testing.junit.runner.internal.SignalHandlers;
import com.google.testing.junit.runner.util.TestNameProvider;
import org.junit.runner.notification.RunListener;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.nio.file.Path;
import java.util.List;
/**
* Guice module for real test runs.
*/
public class JUnit4RunnerModule extends AbstractModule {
private final Class<?> suite;
private final JUnit4Config config;
private final ImmutableList<String> unparsedArgs;
public static JUnit4RunnerModule create(Class<?> suite, List<String> args) {
JUnit4Options options = JUnit4Options.parse(System.getenv(), ImmutableList.copyOf(args));
JUnit4Config config = new JUnit4Config(
options.getTestIncludeFilter(),
options.getTestExcludeFilter(),
Optional.<Path>absent());
return new JUnit4RunnerModule(suite, config, ImmutableList.copyOf(options.getUnparsedArgs()));
}
private JUnit4RunnerModule(
Class<?> suite, JUnit4Config config, ImmutableList<String> unparsedArgs) {
this.suite = suite;
this.config = config;
this.unparsedArgs = unparsedArgs;
}
@Override
protected void configure() {
install(new JUnit4RunnerBaseModule(suite));
// We require explicit bindings so we don't use an unexpected just-in-time binding
bind(SignalHandlers.class);
// Normal bindings
bind(JUnit4Config.class).toInstance(config);
bind(Ticker.class).toInstance(Ticker.systemTicker());
bind(SignalHandlers.HandlerInstaller.class).toInstance(
SignalHandlers.createRealHandlerInstaller());
// Bind listeners
Multibinder<RunListener> listenerBinder = newSetBinder(binder(), RunListener.class);
listenerBinder.addBinding().to(JUnit4TestNameListener.class);
listenerBinder.addBinding().to(JUnit4TestXmlListener.class);
listenerBinder.addBinding().to(JUnit4TestStackTraceListener.class);
}
@Provides @Singleton @Xml
OutputStream provideXmlStream() {
Optional<Path> path = config.getXmlOutputPath();
if (path.isPresent()) {
try {
// TODO(bazel-team): Change the provider method to return ByteSink or CharSink
return new FileOutputStream(path.get().toFile());
} catch (FileNotFoundException e) {
/*
* We try to avoid throwing exceptions in the runner code. There is no
* way to induce a test failure here, so the only thing we can do is
* print a message and move on.
*/
e.printStackTrace();
}
}
return ByteStreams.nullOutputStream();
}
@Provides @Singleton
SettableCurrentRunningTest provideCurrentRunningTest() {
return new SettableCurrentRunningTest() {
void setGlobalTestNameProvider(TestNameProvider provider) {
testNameProvider = provider;
}
};
}
/**
* Gets the list of unparsed command line arguments.
*/
public ImmutableList<String> getUnparsedArgs() {
return unparsedArgs;
}
}
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