| // Copyright 2016 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.buildeventstream.transports; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.mockito.Mockito.when; |
| |
| import com.google.devtools.build.lib.buildeventstream.ArtifactGroupNamer; |
| import com.google.devtools.build.lib.buildeventstream.BuildEvent; |
| import com.google.devtools.build.lib.buildeventstream.BuildEventContext; |
| import com.google.devtools.build.lib.buildeventstream.BuildEventProtocolOptions; |
| import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos; |
| import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.BuildStarted; |
| import com.google.devtools.build.lib.buildeventstream.LocalFilesArtifactUploader; |
| import com.google.devtools.build.lib.buildeventstream.PathConverter; |
| import com.google.devtools.common.options.Options; |
| import com.google.protobuf.util.JsonFormat; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| import org.mockito.ArgumentMatchers; |
| import org.mockito.Mock; |
| import org.mockito.Mockito; |
| import org.mockito.MockitoAnnotations; |
| |
| /** Tests {@link TextFormatFileTransport}. * */ |
| @RunWith(JUnit4.class) |
| public class JsonFormatFileTransportTest { |
| private final BuildEventProtocolOptions defaultOpts = |
| Options.getDefaults(BuildEventProtocolOptions.class); |
| |
| @Rule public TemporaryFolder tmp = new TemporaryFolder(); |
| |
| @Mock public BuildEvent buildEvent; |
| |
| @Mock public PathConverter pathConverter; |
| @Mock public ArtifactGroupNamer artifactGroupNamer; |
| |
| @Before |
| public void setUp() { |
| MockitoAnnotations.initMocks(this); |
| } |
| |
| @After |
| public void tearDown() { |
| Mockito.validateMockitoUsage(); |
| } |
| |
| @Test |
| public void testCreatesFileAndWritesProtoJsonFormat() throws Exception { |
| File output = tmp.newFile(); |
| BufferedOutputStream outputStream = |
| new BufferedOutputStream(Files.newOutputStream(Paths.get(output.getAbsolutePath()))); |
| |
| BuildEventStreamProtos.BuildEvent started = |
| BuildEventStreamProtos.BuildEvent.newBuilder() |
| .setStarted(BuildStarted.newBuilder().setCommand("build")) |
| .build(); |
| when(buildEvent.asStreamProto(ArgumentMatchers.<BuildEventContext>any())).thenReturn(started); |
| JsonFormatFileTransport transport = |
| new JsonFormatFileTransport( |
| outputStream, |
| defaultOpts, |
| new LocalFilesArtifactUploader(), |
| artifactGroupNamer); |
| transport.sendBuildEvent(buildEvent); |
| |
| transport.close().get(); |
| try (Reader reader = new InputStreamReader(new FileInputStream(output))) { |
| JsonFormat.Parser parser = JsonFormat.parser(); |
| BuildEventStreamProtos.BuildEvent.Builder builder = |
| BuildEventStreamProtos.BuildEvent.newBuilder(); |
| parser.merge(reader, builder); |
| assertThat(builder.build()).isEqualTo(started); |
| } |
| } |
| |
| /** |
| * A thin wrapper around an OutputStream that counts number of bytes written and verifies flushes. |
| * |
| * <p>The methods below need to be syncrhonized because they override methods from {@link |
| * BufferedOutputStream} *not* because there's a concurrent access to the stream. |
| */ |
| private static final class WrappedOutputStream extends BufferedOutputStream { |
| private long byteCount; |
| private int flushCount; |
| |
| WrappedOutputStream(OutputStream out) { |
| super(out); |
| this.out = out; |
| } |
| |
| @Override |
| public synchronized void write(int b) throws IOException { |
| out.write(b); |
| byteCount++; |
| } |
| |
| @Override |
| public synchronized void write(byte[] b) throws IOException { |
| out.write(b); |
| byteCount += b.length; |
| } |
| |
| @Override |
| public synchronized void write(byte[] b, int off, int len) throws IOException { |
| out.write(b, off, len); |
| byteCount += len; |
| } |
| |
| @Override |
| public synchronized void flush() throws IOException { |
| out.flush(); |
| flushCount++; |
| } |
| } |
| |
| @Test |
| public void testFlushesStreamAfterSmallWrites() throws Exception { |
| File output = tmp.newFile(); |
| BufferedOutputStream outputStream = |
| new BufferedOutputStream(Files.newOutputStream(Paths.get(output.getAbsolutePath()))); |
| WrappedOutputStream wrappedOutputStream = new WrappedOutputStream(outputStream); |
| |
| BuildEventStreamProtos.BuildEvent started = |
| BuildEventStreamProtos.BuildEvent.newBuilder() |
| .setStarted(BuildStarted.newBuilder().setCommand("build")) |
| .build(); |
| when(buildEvent.asStreamProto(ArgumentMatchers.<BuildEventContext>any())).thenReturn(started); |
| |
| JsonFormatFileTransport transport = |
| new JsonFormatFileTransport( |
| wrappedOutputStream, defaultOpts, new LocalFilesArtifactUploader(), artifactGroupNamer); |
| |
| transport.sendBuildEvent(buildEvent); |
| Thread.sleep(transport.getFlushInterval().toMillis() * 3); |
| |
| // Some users, e.g. Tulsi, use JSON build event output for interactive use and expect the stream |
| // to be flushed at regular short intervals. |
| assertThat(wrappedOutputStream.flushCount).isGreaterThan(0); |
| |
| // We know that large writes get flushed; test is valuable only if we check small writes, |
| // meaning smaller than 8192, the default buffer size used by BufferedOutputStream. |
| assertThat(wrappedOutputStream.byteCount).isLessThan(8192L); |
| assertThat(wrappedOutputStream.byteCount).isGreaterThan(0L); |
| |
| transport.close().get(); |
| } |
| } |