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Allow running an extra spawn for local branch of dynamic execution.
Allow `DynamicExecutionModule` to specify an extra spawn to be ran in the local branch. Add support in `DynamicSpawnStrategy` for running the extra spawn when it is provided. PiperOrigin-RevId: 344826682
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src/test/java/com/google/devtools/build/lib/dynamic/DynamicSpawnStrategyUnitTest.java
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// Copyright 2020 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.dynamic; | ||
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import static com.google.common.base.Preconditions.checkState; | ||
import static com.google.common.truth.Truth.assertThat; | ||
import static java.util.concurrent.TimeUnit.MILLISECONDS; | ||
import static org.mockito.ArgumentMatchers.any; | ||
import static org.mockito.ArgumentMatchers.eq; | ||
import static org.mockito.ArgumentMatchers.isNotNull; | ||
import static org.mockito.ArgumentMatchers.isNull; | ||
import static org.mockito.Mockito.mock; | ||
import static org.mockito.Mockito.never; | ||
import static org.mockito.Mockito.verify; | ||
import static org.mockito.Mockito.verifyZeroInteractions; | ||
import static org.mockito.Mockito.when; | ||
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import com.google.common.collect.ImmutableList; | ||
import com.google.devtools.build.lib.actions.ActionExecutionContext; | ||
import com.google.devtools.build.lib.actions.DynamicStrategyRegistry; | ||
import com.google.devtools.build.lib.actions.SandboxedSpawnStrategy; | ||
import com.google.devtools.build.lib.actions.SandboxedSpawnStrategy.StopConcurrentSpawns; | ||
import com.google.devtools.build.lib.actions.Spawn; | ||
import com.google.devtools.build.lib.actions.SpawnResult; | ||
import com.google.devtools.build.lib.actions.SpawnResult.Status; | ||
import com.google.devtools.build.lib.exec.ExecutionPolicy; | ||
import com.google.devtools.build.lib.exec.util.SpawnBuilder; | ||
import com.google.devtools.build.lib.server.FailureDetails.Execution; | ||
import com.google.devtools.build.lib.server.FailureDetails.FailureDetail; | ||
import com.google.devtools.build.lib.testutil.TestFileOutErr; | ||
import com.google.devtools.build.lib.testutil.TestUtils; | ||
import java.util.Optional; | ||
import java.util.concurrent.ExecutorService; | ||
import java.util.concurrent.Executors; | ||
import java.util.concurrent.Semaphore; | ||
import java.util.function.Function; | ||
import org.junit.After; | ||
import org.junit.Before; | ||
import org.junit.Test; | ||
import org.junit.runner.RunWith; | ||
import org.junit.runners.JUnit4; | ||
import org.mockito.ArgumentCaptor; | ||
import org.mockito.Mock; | ||
import org.mockito.MockitoAnnotations; | ||
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/** Unit tests for {@link DynamicSpawnStrategy}. */ | ||
@RunWith(JUnit4.class) | ||
public class DynamicSpawnStrategyUnitTest { | ||
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private static final SpawnResult SUCCESSFUL_SPAWN_RESULT = | ||
new SpawnResult.Builder().setRunnerName("test").setStatus(Status.SUCCESS).build(); | ||
private static final FailureDetail FAILURE_DETAIL = | ||
FailureDetail.newBuilder().setExecution(Execution.getDefaultInstance()).build(); | ||
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private ExecutorService executorServiceForCleanup; | ||
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@Mock private Function<Spawn, Optional<Spawn>> mockGetPostProcessingSpawn; | ||
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@Before | ||
public void initMocks() { | ||
MockitoAnnotations.initMocks(this); | ||
} | ||
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@After | ||
public void stopExecutorService() throws InterruptedException { | ||
executorServiceForCleanup.shutdown(); | ||
assertThat( | ||
executorServiceForCleanup.awaitTermination( | ||
TestUtils.WAIT_TIMEOUT_MILLISECONDS, MILLISECONDS)) | ||
.isTrue(); | ||
} | ||
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@Test | ||
public void exec_remoteOnlySpawn_doesNotGetLocalPostProcessingSpawn() throws Exception { | ||
DynamicSpawnStrategy dynamicSpawnStrategy = | ||
createDynamicSpawnStrategy( | ||
ExecutionPolicy.REMOTE_EXECUTION_ONLY, mockGetPostProcessingSpawn); | ||
SandboxedSpawnStrategy local = createMockSpawnStrategy(); | ||
SandboxedSpawnStrategy remote = createMockSpawnStrategy(); | ||
ArgumentCaptor<Spawn> remoteSpawnCaptor = ArgumentCaptor.forClass(Spawn.class); | ||
when(remote.exec(remoteSpawnCaptor.capture(), any(), any())) | ||
.thenReturn(ImmutableList.of(SUCCESSFUL_SPAWN_RESULT)); | ||
ActionExecutionContext actionExecutionContext = createMockActionExecutionContext(local, remote); | ||
Spawn spawn = new SpawnBuilder().build(); | ||
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ImmutableList<SpawnResult> results = dynamicSpawnStrategy.exec(spawn, actionExecutionContext); | ||
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assertThat(results).containsExactly(SUCCESSFUL_SPAWN_RESULT); | ||
verify(mockGetPostProcessingSpawn, never()).apply(any()); | ||
verify(local, never()).exec(any(), any(), any()); | ||
assertThat(remoteSpawnCaptor.getAllValues()).containsExactly(spawn); | ||
} | ||
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@Test | ||
public void exec_localOnlySpawn_runsLocalPostProcessingSpawn() throws Exception { | ||
Spawn spawn = new SpawnBuilder("command").build(); | ||
Spawn postProcessingSpawn = new SpawnBuilder("extra_command").build(); | ||
DynamicSpawnStrategy dynamicSpawnStrategy = | ||
createDynamicSpawnStrategy( | ||
ExecutionPolicy.LOCAL_EXECUTION_ONLY, ignored -> Optional.of(postProcessingSpawn)); | ||
SandboxedSpawnStrategy local = createMockSpawnStrategy(); | ||
ArgumentCaptor<Spawn> localSpawnCaptor = ArgumentCaptor.forClass(Spawn.class); | ||
when(local.exec(localSpawnCaptor.capture(), any(), any())) | ||
.thenReturn(ImmutableList.of(SUCCESSFUL_SPAWN_RESULT)); | ||
SandboxedSpawnStrategy remote = createMockSpawnStrategy(); | ||
ActionExecutionContext actionExecutionContext = createMockActionExecutionContext(local, remote); | ||
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ImmutableList<SpawnResult> results = dynamicSpawnStrategy.exec(spawn, actionExecutionContext); | ||
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assertThat(results).containsExactly(SUCCESSFUL_SPAWN_RESULT, SUCCESSFUL_SPAWN_RESULT); | ||
verifyZeroInteractions(remote); | ||
assertThat(localSpawnCaptor.getAllValues()) | ||
.containsExactly(spawn, postProcessingSpawn) | ||
.inOrder(); | ||
} | ||
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@Test | ||
public void exec_failedLocalSpawn_doesNotGetLocalPostProcessingSpawn() throws Exception { | ||
testExecFailedLocalSpawnDoesNotGetLocalPostProcessingSpawn( | ||
new SpawnResult.Builder() | ||
.setRunnerName("test") | ||
.setStatus(Status.TIMEOUT) | ||
.setExitCode(SpawnResult.POSIX_TIMEOUT_EXIT_CODE) | ||
.setFailureDetail(FAILURE_DETAIL) | ||
.build()); | ||
} | ||
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@Test | ||
public void exec_nonZeroExitCodeLocalSpawn_doesNotGetLocalPostProcessingSpawn() throws Exception { | ||
testExecFailedLocalSpawnDoesNotGetLocalPostProcessingSpawn( | ||
new SpawnResult.Builder() | ||
.setRunnerName("test") | ||
.setStatus(Status.EXECUTION_FAILED) | ||
.setExitCode(123) | ||
.setFailureDetail(FAILURE_DETAIL) | ||
.build()); | ||
} | ||
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private void testExecFailedLocalSpawnDoesNotGetLocalPostProcessingSpawn(SpawnResult failedResult) | ||
throws Exception { | ||
DynamicSpawnStrategy dynamicSpawnStrategy = | ||
createDynamicSpawnStrategy( | ||
ExecutionPolicy.LOCAL_EXECUTION_ONLY, mockGetPostProcessingSpawn); | ||
SandboxedSpawnStrategy local = createMockSpawnStrategy(); | ||
ArgumentCaptor<Spawn> localSpawnCaptor = ArgumentCaptor.forClass(Spawn.class); | ||
when(local.exec(localSpawnCaptor.capture(), any(), any())) | ||
.thenReturn(ImmutableList.of(failedResult)); | ||
SandboxedSpawnStrategy remote = createMockSpawnStrategy(); | ||
ActionExecutionContext actionExecutionContext = createMockActionExecutionContext(local, remote); | ||
Spawn spawn = new SpawnBuilder().build(); | ||
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ImmutableList<SpawnResult> results = dynamicSpawnStrategy.exec(spawn, actionExecutionContext); | ||
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assertThat(results).containsExactly(failedResult); | ||
assertThat(localSpawnCaptor.getAllValues()).containsExactly(spawn); | ||
verify(remote, never()).exec(any(), any(), any()); | ||
verify(mockGetPostProcessingSpawn, never()).apply(any()); | ||
} | ||
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@Test | ||
public void exec_runAnywhereSpawn_runsLocalPostProcessingSpawn() throws Exception { | ||
Spawn spawn = new SpawnBuilder().build(); | ||
Spawn postProcessingSpawn = new SpawnBuilder("extra_command").build(); | ||
DynamicSpawnStrategy dynamicSpawnStrategy = | ||
createDynamicSpawnStrategy( | ||
ExecutionPolicy.ANYWHERE, ignored -> Optional.of(postProcessingSpawn)); | ||
SandboxedSpawnStrategy local = createMockSpawnStrategy(); | ||
// Make sure that local execution does not win the race before remote starts. | ||
Semaphore remoteStarted = new Semaphore(0); | ||
// Only the first spawn should be able to stop the concurrent remote execution (get the output | ||
// lock). | ||
when(local.exec(eq(spawn), any(), /*stopConcurrentSpawns=*/ isNotNull())) | ||
.thenAnswer( | ||
invocation -> { | ||
remoteStarted.acquire(); | ||
StopConcurrentSpawns stopConcurrentSpawns = invocation.getArgument(2); | ||
stopConcurrentSpawns.stop(); | ||
return ImmutableList.of(SUCCESSFUL_SPAWN_RESULT); | ||
}); | ||
when(local.exec(eq(postProcessingSpawn), any(), /*stopConcurrentSpawns=*/ isNull())) | ||
.thenReturn(ImmutableList.of(SUCCESSFUL_SPAWN_RESULT)); | ||
SandboxedSpawnStrategy remote = createMockSpawnStrategy(); | ||
when(remote.exec(eq(spawn), any(), any())) | ||
.thenAnswer( | ||
invocation -> { | ||
remoteStarted.release(); | ||
Thread.sleep(TestUtils.WAIT_TIMEOUT_MILLISECONDS); | ||
throw new AssertionError("Timed out waiting for interruption"); | ||
}); | ||
ActionExecutionContext actionExecutionContext = createMockActionExecutionContext(local, remote); | ||
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ImmutableList<SpawnResult> results = dynamicSpawnStrategy.exec(spawn, actionExecutionContext); | ||
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assertThat(results).containsExactly(SUCCESSFUL_SPAWN_RESULT, SUCCESSFUL_SPAWN_RESULT); | ||
} | ||
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private DynamicSpawnStrategy createDynamicSpawnStrategy( | ||
ExecutionPolicy executionPolicy, | ||
Function<Spawn, Optional<Spawn>> getPostProcessingSpawnForLocalExecution) { | ||
checkState( | ||
executorServiceForCleanup == null, | ||
"Creating the DynamicSpawnStrategy twice in the same test is not supported."); | ||
executorServiceForCleanup = Executors.newCachedThreadPool(); | ||
return new DynamicSpawnStrategy( | ||
executorServiceForCleanup, | ||
new DynamicExecutionOptions(), | ||
ignored -> executionPolicy, | ||
getPostProcessingSpawnForLocalExecution); | ||
} | ||
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private static ActionExecutionContext createMockActionExecutionContext( | ||
SandboxedSpawnStrategy localStrategy, SandboxedSpawnStrategy remoteStrategy) { | ||
ActionExecutionContext actionExecutionContext = mock(ActionExecutionContext.class); | ||
when(actionExecutionContext.getFileOutErr()).thenReturn(new TestFileOutErr()); | ||
when(actionExecutionContext.getContext(DynamicStrategyRegistry.class)) | ||
.thenReturn( | ||
new DynamicStrategyRegistry() { | ||
@Override | ||
public ImmutableList<SandboxedSpawnStrategy> getDynamicSpawnActionContexts( | ||
Spawn spawn, DynamicMode dynamicMode) { | ||
switch (dynamicMode) { | ||
case LOCAL: | ||
return ImmutableList.of(localStrategy); | ||
case REMOTE: | ||
return ImmutableList.of(remoteStrategy); | ||
} | ||
throw new AssertionError("Unexpected mode: " + dynamicMode); | ||
} | ||
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@Override | ||
public void notifyUsedDynamic(ActionContextRegistry actionContextRegistry) {} | ||
}); | ||
when(actionExecutionContext.withFileOutErr(any())).thenReturn(actionExecutionContext); | ||
return actionExecutionContext; | ||
} | ||
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private static SandboxedSpawnStrategy createMockSpawnStrategy() throws InterruptedException { | ||
SandboxedSpawnStrategy strategy = mock(SandboxedSpawnStrategy.class); | ||
when(strategy.canExec(any(), any())).thenReturn(true); | ||
when(strategy.beginExecution(any(), any())).thenThrow(UnsupportedOperationException.class); | ||
return strategy; | ||
} | ||
} |