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// 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.exec;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
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.SpawnCache.CacheHandle;
import com.google.devtools.build.lib.exec.SpawnRunner.SpawnExecutionPolicy;
import com.google.devtools.build.lib.exec.util.SpawnBuilder;
import com.google.devtools.build.lib.testutil.Suite;
import com.google.devtools.build.lib.testutil.TestSpec;
import com.google.devtools.build.lib.vfs.FileSystem;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import java.util.Collection;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
/** Tests for {@link BlazeExecutor}. */
@RunWith(JUnit4.class)
@TestSpec(size = Suite.SMALL_TESTS)
public class AbstractSpawnStrategyTest {
private static class TestedSpawnStrategy extends AbstractSpawnStrategy {
public TestedSpawnStrategy(Path execRoot, SpawnRunner spawnRunner) {
super(execRoot, spawnRunner);
}
}
private static final Spawn SIMPLE_SPAWN =
new SpawnBuilder("/bin/echo", "Hi!").withEnvironment("VARIABLE", "value").build();
private final FileSystem fs = new InMemoryFileSystem();
private final Path execRoot = fs.getPath("/execroot");
@Mock private SpawnRunner spawnRunner;
@Mock private ActionExecutionContext actionExecutionContext;
@Before
public final void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
@Test
public void testZeroExit() throws Exception {
when(actionExecutionContext.getContext(eq(SpawnCache.class))).thenReturn(SpawnCache.NO_CACHE);
when(actionExecutionContext.getExecRoot()).thenReturn(fs.getPath("/execroot"));
SpawnResult spawnResult = new SpawnResult.Builder().setStatus(Status.SUCCESS).build();
when(spawnRunner.exec(any(Spawn.class), any(SpawnExecutionPolicy.class)))
.thenReturn(spawnResult);
List<SpawnResult> spawnResults =
new TestedSpawnStrategy(execRoot, spawnRunner).exec(SIMPLE_SPAWN, actionExecutionContext);
assertThat(spawnResults).containsExactly(spawnResult);
// Must only be called exactly once.
verify(spawnRunner).exec(any(Spawn.class), any(SpawnExecutionPolicy.class));
}
@Test
public void testNonZeroExit() throws Exception {
when(actionExecutionContext.getContext(eq(SpawnCache.class))).thenReturn(SpawnCache.NO_CACHE);
when(actionExecutionContext.getExecRoot()).thenReturn(execRoot);
SpawnResult result =
new SpawnResult.Builder().setStatus(Status.NON_ZERO_EXIT).setExitCode(1).build();
when(spawnRunner.exec(any(Spawn.class), any(SpawnExecutionPolicy.class)))
.thenReturn(result);
try {
// Ignoring the List<SpawnResult> return value.
new TestedSpawnStrategy(execRoot, spawnRunner).exec(SIMPLE_SPAWN, actionExecutionContext);
fail("Expected SpawnExecException");
} catch (SpawnExecException e) {
assertThat(e.getSpawnResult()).isSameAs(result);
}
// Must only be called exactly once.
verify(spawnRunner).exec(any(Spawn.class), any(SpawnExecutionPolicy.class));
}
@Test
public void testCacheHit() throws Exception {
SpawnCache cache = mock(SpawnCache.class);
SpawnResult spawnResult = new SpawnResult.Builder().setStatus(Status.SUCCESS).build();
when(cache.lookup(any(Spawn.class), any(SpawnExecutionPolicy.class)))
.thenReturn(SpawnCache.success(spawnResult));
when(actionExecutionContext.getContext(eq(SpawnCache.class))).thenReturn(cache);
when(actionExecutionContext.getExecRoot()).thenReturn(fs.getPath("/execroot"));
List<SpawnResult> spawnResults =
new TestedSpawnStrategy(execRoot, spawnRunner).exec(SIMPLE_SPAWN, actionExecutionContext);
assertThat(spawnResults).containsExactly(spawnResult);
verify(spawnRunner, never()).exec(any(Spawn.class), any(SpawnExecutionPolicy.class));
}
@SuppressWarnings("unchecked")
@Test
public void testCacheMiss() throws Exception {
SpawnCache cache = mock(SpawnCache.class);
CacheHandle entry = mock(CacheHandle.class);
when(cache.lookup(any(Spawn.class), any(SpawnExecutionPolicy.class))).thenReturn(entry);
when(entry.hasResult()).thenReturn(false);
when(entry.willStore()).thenReturn(true);
when(actionExecutionContext.getContext(eq(SpawnCache.class))).thenReturn(cache);
when(actionExecutionContext.getExecRoot()).thenReturn(fs.getPath("/execroot"));
SpawnResult spawnResult = new SpawnResult.Builder().setStatus(Status.SUCCESS).build();
when(spawnRunner.exec(any(Spawn.class), any(SpawnExecutionPolicy.class)))
.thenReturn(spawnResult);
List<SpawnResult> spawnResults =
new TestedSpawnStrategy(execRoot, spawnRunner).exec(SIMPLE_SPAWN, actionExecutionContext);
assertThat(spawnResults).containsExactly(spawnResult);
// Must only be called exactly once.
verify(spawnRunner).exec(any(Spawn.class), any(SpawnExecutionPolicy.class));
verify(entry).store(eq(spawnResult), any(Collection.class));
}
@SuppressWarnings("unchecked")
@Test
public void testCacheMissWithNonZeroExit() throws Exception {
SpawnCache cache = mock(SpawnCache.class);
CacheHandle entry = mock(CacheHandle.class);
when(cache.lookup(any(Spawn.class), any(SpawnExecutionPolicy.class))).thenReturn(entry);
when(entry.hasResult()).thenReturn(false);
when(entry.willStore()).thenReturn(true);
when(actionExecutionContext.getContext(eq(SpawnCache.class))).thenReturn(cache);
when(actionExecutionContext.getExecRoot()).thenReturn(fs.getPath("/execroot"));
SpawnResult result =
new SpawnResult.Builder().setStatus(Status.NON_ZERO_EXIT).setExitCode(1).build();
when(spawnRunner.exec(any(Spawn.class), any(SpawnExecutionPolicy.class))).thenReturn(result);
try {
// Ignoring the List<SpawnResult> return value.
new TestedSpawnStrategy(execRoot, spawnRunner).exec(SIMPLE_SPAWN, actionExecutionContext);
fail("Expected SpawnExecException");
} catch (SpawnExecException e) {
assertThat(e.getSpawnResult()).isSameAs(result);
}
// Must only be called exactly once.
verify(spawnRunner).exec(any(Spawn.class), any(SpawnExecutionPolicy.class));
verify(entry).store(eq(result), any(Collection.class));
}
}
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