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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.devtools.build.lib.shell;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static org.junit.Assert.fail;
import com.google.devtools.build.lib.shell.Consumers.OutErrConsumers;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class ConsumersTest {
@Before
public final void configureLogger() throws Exception {
// enable all log statements to ensure there are no problems with
// logging code
Logger.getLogger("com.google.devtools.build.lib.shell.Command").setLevel(Level.FINEST);
}
private static final String SECRET_MESSAGE = "This is a secret message.";
/**
* Tests that if an IOException occurs in an output stream, the exception
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousIOExceptionInConsumerOutputStream() {
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw new IOException(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
assertThat(e).hasMessageThat().isEqualTo(SECRET_MESSAGE);
}
}
/**
* Tests that if an OutOfMemeoryError occurs in an output stream, it
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousOutOfMemoryErrorInConsumerOutputStream() {
final OutOfMemoryError error = new OutOfMemoryError(SECRET_MESSAGE);
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw error;
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
fail();
} catch (OutOfMemoryError e) {
assertWithMessage("OutOfMemoryError is not masked").that(e).isSameAs(error);
}
}
/**
* Tests that if an Error occurs in an output stream, the error
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousErrorInConsumerOutputStream() {
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw new OutOfMemoryError(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
fail();
} catch (Error e) {
assertThat(e).hasMessageThat().isEqualTo(SECRET_MESSAGE);
}
}
/**
* Tests that if an RuntimeException occurs in an output stream, the exception
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousRuntimeExceptionInConsumerOutputStream()
throws Exception {
OutputStream out = new OutputStream() {
@Override
public void write(int b) {
throw new RuntimeException(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (RuntimeException e) {
assertThat(e).hasMessageThat().isEqualTo(SECRET_MESSAGE);
}
}
}
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