1 files changed, 502 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/remote/GrpcRemoteExecutionClientTest.java b/src/test/java/com/google/devtools/build/lib/remote/GrpcRemoteExecutionClientTest.java
new file mode 100644
index 0000000000..f22dc735ce
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/remote/GrpcRemoteExecutionClientTest.java
@@ -0,0 +1,502 @@
+// Copyright 2017 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.remote;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.BiMap;
+import com.google.common.collect.HashBiMap;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.eventbus.EventBus;
+import com.google.common.hash.HashCode;
+import com.google.devtools.build.lib.actions.ActionAnalysisMetadata;
+import com.google.devtools.build.lib.actions.ActionExecutionContext;
+import com.google.devtools.build.lib.actions.ActionExecutionMetadata;
+import com.google.devtools.build.lib.actions.ActionInput;
+import com.google.devtools.build.lib.actions.ActionInputFileCache;
+import com.google.devtools.build.lib.actions.ActionInputHelper;
+import com.google.devtools.build.lib.actions.ActionOwner;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.actions.Artifact.ArtifactExpander;
+import com.google.devtools.build.lib.actions.ResourceSet;
+import com.google.devtools.build.lib.actions.RunfilesSupplier;
+import com.google.devtools.build.lib.actions.SimpleSpawn;
+import com.google.devtools.build.lib.exec.SpawnResult;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ActionResult;
+import com.google.devtools.build.lib.remote.RemoteProtocol.BlobChunk;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasDownloadBlobRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasDownloadReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasDownloadTreeMetadataReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasDownloadTreeMetadataRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasLookupReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasLookupRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasStatus;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasUploadBlobReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasUploadBlobRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasUploadTreeMetadataReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.CasUploadTreeMetadataRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ContentDigest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecuteReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecuteRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecutionCacheReply;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecutionCacheRequest;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecutionCacheStatus;
+import com.google.devtools.build.lib.remote.RemoteProtocol.ExecutionStatus;
+import com.google.devtools.build.lib.util.io.OutErr;
+import com.google.devtools.build.lib.vfs.FileSystem;
+import com.google.devtools.build.lib.vfs.FileSystemUtils;
+import com.google.devtools.build.lib.vfs.Path;
+import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
+import com.google.devtools.common.options.Options;
+import com.google.protobuf.ByteString;
+import io.grpc.stub.StreamObserver;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import javax.annotation.Nullable;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import org.mockito.Mockito;
+
+/** Tests for {@link RemoteSpawnRunner} in combination with {@link GrpcRemoteExecutor}. */
+@RunWith(JUnit4.class)
+public class GrpcRemoteExecutionClientTest {
+  private static class MockOwner implements ActionExecutionMetadata {
+    private final String mnemonic;
+    private final String progressMessage;
+
+    MockOwner(String mnemonic, String progressMessage) {
+      this.mnemonic = mnemonic;
+      this.progressMessage = progressMessage;
+    }
+
+    @Override
+    public ActionOwner getOwner() {
+      return mock(ActionOwner.class);
+    }
+
+    @Override
+    public String getMnemonic() {
+      return mnemonic;
+    }
+
+    @Override
+    public String getProgressMessage() {
+      return progressMessage;
+    }
+
+    @Override
+    public boolean inputsDiscovered() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean discoversInputs() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterable<Artifact> getTools() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterable<Artifact> getInputs() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public RunfilesSupplier getRunfilesSupplier() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public ImmutableSet<Artifact> getOutputs() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterable<String> getClientEnvironmentVariables() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Artifact getPrimaryInput() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Artifact getPrimaryOutput() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterable<Artifact> getMandatoryInputs() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public String getKey() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public String describeKey() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public String prettyPrint() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterable<Artifact> getInputFilesForExtraAction(
+        ActionExecutionContext actionExecutionContext) {
+      return ImmutableList.<Artifact>of();
+    }
+
+    @Override
+    public ImmutableSet<Artifact> getMandatoryOutputs() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public MiddlemanType getActionType() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean shouldReportPathPrefixConflict(ActionAnalysisMetadata action) {
+      throw new UnsupportedOperationException();
+    }
+  }
+
+  private static final class FakeCas implements GrpcCasInterface {
+    private final Map<ByteString, ByteString> content = new HashMap<>();
+
+    public ContentDigest put(byte[] data) {
+      ContentDigest digest = ContentDigests.computeDigest(data);
+      ByteString key = digest.getDigest();
+      ByteString value = ByteString.copyFrom(data);
+      content.put(key, value);
+      return digest;
+    }
+
+    @Override
+    public CasLookupReply lookup(CasLookupRequest request) {
+      CasStatus.Builder result = CasStatus.newBuilder();
+      for (ContentDigest digest : request.getDigestList()) {
+        ByteString key = digest.getDigest();
+        if (!content.containsKey(key)) {
+          result.addMissingDigest(digest);
+        }
+      }
+      if (result.getMissingDigestCount() != 0) {
+        result.setError(CasStatus.ErrorCode.MISSING_DIGEST);
+      } else {
+        result.setSucceeded(true);
+      }
+      return CasLookupReply.newBuilder().setStatus(result).build();
+    }
+
+    @Override
+    public CasUploadTreeMetadataReply uploadTreeMetadata(CasUploadTreeMetadataRequest request) {
+      return CasUploadTreeMetadataReply.newBuilder()
+          .setStatus(CasStatus.newBuilder().setSucceeded(true))
+          .build();
+    }
+
+    @Override
+    public CasDownloadTreeMetadataReply downloadTreeMetadata(
+        CasDownloadTreeMetadataRequest request) {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Iterator<CasDownloadReply> downloadBlob(CasDownloadBlobRequest request) {
+      List<CasDownloadReply> result = new ArrayList<>();
+      for (ContentDigest digest : request.getDigestList()) {
+        CasDownloadReply.Builder builder = CasDownloadReply.newBuilder();
+        ByteString item = content.get(digest.getDigest());
+        if (item != null) {
+          builder.setStatus(CasStatus.newBuilder().setSucceeded(true));
+          builder.setData(BlobChunk.newBuilder().setData(item).setDigest(digest));
+        } else {
+          throw new IllegalStateException();
+        }
+        result.add(builder.build());
+      }
+      return result.iterator();
+    }
+
+    @Override
+    public StreamObserver<CasUploadBlobRequest> uploadBlobAsync(
+        final StreamObserver<CasUploadBlobReply> responseObserver) {
+      return new StreamObserver<CasUploadBlobRequest>() {
+        private ContentDigest digest;
+        private ByteArrayOutputStream current;
+
+        @Override
+        public void onNext(CasUploadBlobRequest value) {
+          BlobChunk chunk = value.getData();
+          if (chunk.hasDigest()) {
+            Preconditions.checkState(digest == null);
+            digest = chunk.getDigest();
+            current = new ByteArrayOutputStream();
+          }
+          try {
+            current.write(chunk.getData().toByteArray());
+          } catch (IOException e) {
+            throw new RuntimeException(e);
+          }
+          responseObserver.onNext(
+              CasUploadBlobReply.newBuilder()
+                  .setStatus(CasStatus.newBuilder().setSucceeded(true))
+                  .build());
+        }
+
+        @Override
+        public void onError(Throwable t) {
+          throw new RuntimeException(t);
+        }
+
+        @Override
+        public void onCompleted() {
+          ContentDigest check = ContentDigests.computeDigest(current.toByteArray());
+          Preconditions.checkState(check.equals(digest), "%s != %s", digest, check);
+          ByteString key = digest.getDigest();
+          ByteString value = ByteString.copyFrom(current.toByteArray());
+          digest = null;
+          current = null;
+          content.put(key, value);
+          responseObserver.onCompleted();
+        }
+      };
+    }
+  }
+
+  private static final class FakeActionInputFileCache implements ActionInputFileCache {
+    private final Path execRoot;
+    private final BiMap<ActionInput, ByteString> cas = HashBiMap.create();
+
+    FakeActionInputFileCache(Path execRoot) {
+      this.execRoot = execRoot;
+    }
+
+    void setDigest(ActionInput input, ByteString digest) {
+      cas.put(input, digest);
+    }
+
+    @Override
+    @Nullable
+    public byte[] getDigest(ActionInput input) throws IOException {
+      return Preconditions.checkNotNull(cas.get(input), input).toByteArray();
+    }
+
+    @Override
+    public boolean isFile(Artifact input) {
+      return execRoot.getRelative(input.getExecPath()).isFile();
+    }
+
+    @Override
+    public long getSizeInBytes(ActionInput input) throws IOException {
+      return execRoot.getRelative(input.getExecPath()).getFileSize();
+    }
+
+    @Override
+    public boolean contentsAvailableLocally(ByteString digest) {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    @Nullable
+    public ActionInput getInputFromDigest(ByteString hexDigest) {
+      HashCode code =
+          HashCode.fromString(new String(hexDigest.toByteArray(), StandardCharsets.UTF_8));
+      ByteString digest = ByteString.copyFrom(code.asBytes());
+      return Preconditions.checkNotNull(cas.inverse().get(digest));
+    }
+
+    @Override
+    public Path getInputPath(ActionInput input) {
+      throw new UnsupportedOperationException();
+    }
+  }
+
+  private static final ArtifactExpander SIMPLE_ARTIFACT_EXPANDER = new ArtifactExpander() {
+    @Override
+    public void expand(Artifact artifact, Collection<? super Artifact> output) {
+      output.add(artifact);
+    }
+  };
+
+  private FileSystem fs;
+  private Path execRoot;
+  private EventBus eventBus;
+  private SimpleSpawn simpleSpawn;
+  private FakeActionInputFileCache fakeFileCache;
+
+  @Before
+  public final void setUp() throws Exception {
+    fs = new InMemoryFileSystem();
+    execRoot = fs.getPath("/exec/root");
+    FileSystemUtils.createDirectoryAndParents(execRoot);
+    eventBus = new EventBus();
+    fakeFileCache = new FakeActionInputFileCache(execRoot);
+    simpleSpawn = new SimpleSpawn(
+        new MockOwner("Mnemonic", "Progress Message"),
+        ImmutableList.of("/bin/echo", "Hi!"),
+        ImmutableMap.of("VARIABLE", "value"),
+        /*executionInfo=*/ImmutableMap.<String, String>of(),
+        /*inputs=*/ImmutableList.of(ActionInputHelper.fromPath("input")),
+        /*outputs=*/ImmutableList.<ActionInput>of(),
+        ResourceSet.ZERO
+    );
+  }
+
+  private void scratch(ActionInput input, String content) throws IOException {
+    Path inputFile = execRoot.getRelative(input.getExecPath());
+    FileSystemUtils.writeContentAsLatin1(inputFile, content);
+    fakeFileCache.setDigest(
+        simpleSpawn.getInputFiles().get(0), ByteString.copyFrom(inputFile.getSHA1Digest()));
+  }
+
+  @Test
+  public void cacheHit() throws Exception {
+    GrpcCasInterface casIface = Mockito.mock(GrpcCasInterface.class);
+    GrpcExecutionCacheInterface cacheIface = Mockito.mock(GrpcExecutionCacheInterface.class);
+    GrpcExecutionInterface executionIface = Mockito.mock(GrpcExecutionInterface.class);
+    RemoteOptions options = Options.getDefaults(RemoteOptions.class);
+    GrpcRemoteExecutor executor =
+        new GrpcRemoteExecutor(options, casIface, cacheIface, executionIface);
+    RemoteSpawnRunner client =
+        new RemoteSpawnRunner(execRoot, eventBus, "workspace", options, executor);
+
+    scratch(simpleSpawn.getInputFiles().get(0), "xyz");
+
+    ExecutionCacheReply reply = ExecutionCacheReply.newBuilder()
+        .setStatus(ExecutionCacheStatus.newBuilder().setSucceeded(true))
+        .setResult(ActionResult.newBuilder().setReturnCode(0))
+        .build();
+    when(cacheIface.getCachedResult(any(ExecutionCacheRequest.class))).thenReturn(reply);
+
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ByteArrayOutputStream err = new ByteArrayOutputStream();
+    OutErr outErr = OutErr.create(out, err);
+    SpawnResult result =
+        client.exec(simpleSpawn, outErr, fakeFileCache, SIMPLE_ARTIFACT_EXPANDER, /*timeout=*/-1);
+    verify(cacheIface).getCachedResult(any(ExecutionCacheRequest.class));
+    assertThat(result.setupSuccess()).isTrue();
+    assertThat(result.exitCode()).isEqualTo(0);
+    assertThat(out.toByteArray()).isEmpty();
+    assertThat(err.toByteArray()).isEmpty();
+  }
+
+  @Test
+  public void cacheHitWithOutput() throws Exception {
+    FakeCas casIface = new FakeCas();
+    GrpcExecutionCacheInterface cacheIface = Mockito.mock(GrpcExecutionCacheInterface.class);
+    GrpcExecutionInterface executionIface = Mockito.mock(GrpcExecutionInterface.class);
+    RemoteOptions options = Options.getDefaults(RemoteOptions.class);
+    GrpcRemoteExecutor executor =
+        new GrpcRemoteExecutor(options, casIface, cacheIface, executionIface);
+    RemoteSpawnRunner client =
+        new RemoteSpawnRunner(execRoot, eventBus, "workspace", options, executor);
+
+    scratch(simpleSpawn.getInputFiles().get(0), "xyz");
+    byte[] cacheStdOut = "stdout".getBytes(StandardCharsets.UTF_8);
+    byte[] cacheStdErr = "stderr".getBytes(StandardCharsets.UTF_8);
+    ContentDigest stdOutDigest = casIface.put(cacheStdOut);
+    ContentDigest stdErrDigest = casIface.put(cacheStdErr);
+
+    ExecutionCacheReply reply = ExecutionCacheReply.newBuilder()
+        .setStatus(ExecutionCacheStatus.newBuilder().setSucceeded(true))
+        .setResult(ActionResult.newBuilder()
+            .setReturnCode(0)
+            .setStdoutDigest(stdOutDigest)
+            .setStderrDigest(stdErrDigest))
+        .build();
+    when(cacheIface.getCachedResult(any(ExecutionCacheRequest.class))).thenReturn(reply);
+
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ByteArrayOutputStream err = new ByteArrayOutputStream();
+    OutErr outErr = OutErr.create(out, err);
+    SpawnResult result =
+        client.exec(simpleSpawn, outErr, fakeFileCache, SIMPLE_ARTIFACT_EXPANDER, /*timeout=*/-1);
+    verify(cacheIface).getCachedResult(any(ExecutionCacheRequest.class));
+    assertThat(result.setupSuccess()).isTrue();
+    assertThat(result.exitCode()).isEqualTo(0);
+    assertThat(out.toByteArray()).isEqualTo(cacheStdOut);
+    assertThat(err.toByteArray()).isEqualTo(cacheStdErr);
+  }
+
+  @Test
+  public void remotelyExecute() throws Exception {
+    FakeCas casIface = new FakeCas();
+    GrpcExecutionCacheInterface cacheIface = Mockito.mock(GrpcExecutionCacheInterface.class);
+    GrpcExecutionInterface executionIface = Mockito.mock(GrpcExecutionInterface.class);
+    RemoteOptions options = Options.getDefaults(RemoteOptions.class);
+    GrpcRemoteExecutor executor =
+        new GrpcRemoteExecutor(options, casIface, cacheIface, executionIface);
+    RemoteSpawnRunner client =
+        new RemoteSpawnRunner(execRoot, eventBus, "workspace", options, executor);
+
+    scratch(simpleSpawn.getInputFiles().get(0), "xyz");
+    byte[] cacheStdOut = "stdout".getBytes(StandardCharsets.UTF_8);
+    byte[] cacheStdErr = "stderr".getBytes(StandardCharsets.UTF_8);
+    ContentDigest stdOutDigest = casIface.put(cacheStdOut);
+    ContentDigest stdErrDigest = casIface.put(cacheStdErr);
+
+    ExecutionCacheReply reply = ExecutionCacheReply.newBuilder()
+        .setStatus(ExecutionCacheStatus.newBuilder().setSucceeded(true))
+        .build();
+    when(cacheIface.getCachedResult(any(ExecutionCacheRequest.class))).thenReturn(reply);
+
+    when(executionIface.execute(any(ExecuteRequest.class))).thenReturn(ImmutableList.of(
+        ExecuteReply.newBuilder()
+            .setStatus(ExecutionStatus.newBuilder().setSucceeded(true))
+            .setResult(ActionResult.newBuilder()
+                .setReturnCode(0)
+                .setStdoutDigest(stdOutDigest)
+                .setStderrDigest(stdErrDigest))
+            .build()).iterator());
+
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ByteArrayOutputStream err = new ByteArrayOutputStream();
+    OutErr outErr = OutErr.create(out, err);
+    SpawnResult result =
+        client.exec(simpleSpawn, outErr, fakeFileCache, SIMPLE_ARTIFACT_EXPANDER, /*timeout=*/-1);
+    verify(cacheIface).getCachedResult(any(ExecutionCacheRequest.class));
+    assertThat(result.setupSuccess()).isTrue();
+    assertThat(result.exitCode()).isEqualTo(0);
+    assertThat(out.toByteArray()).isEqualTo(cacheStdOut);
+    assertThat(err.toByteArray()).isEqualTo(cacheStdErr);
+  }
+}