/*
* Copyright 2016-present Facebook, Inc.
*
* 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.facebook.buck.shell;
import static org.junit.Assert.assertThat;
import static org.junit.Assume.assumeTrue;
import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.model.BuildTargets;
import com.facebook.buck.testutil.FakeProjectFilesystem;
import com.facebook.buck.testutil.integration.ProjectWorkspace;
import com.facebook.buck.testutil.integration.TemporaryPaths;
import com.facebook.buck.testutil.integration.TestDataHelper;
import com.facebook.buck.util.environment.Platform;
import com.google.common.collect.ImmutableSet;
import java.io.IOException;
import java.nio.file.Paths;
import org.hamcrest.Matchers;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
public class WorkerToolRuleIntegrationTest {
@Rule public TemporaryPaths tmpFolder = new TemporaryPaths();
private ProjectWorkspace workspace;
@Before
public void setUp() throws IOException {
assumeTrue(Platform.detect() == Platform.MACOS || Platform.detect() == Platform.LINUX);
workspace =
TestDataHelper.createProjectWorkspaceForScenario(this, "worker_tool_test", tmpFolder);
workspace.setUp();
}
/**
* This test builds three genrules simultaneously which each use a worker macro. //:test1 and
* //:test2 both reference the same worker_tool, so they will both communicate with the same
* external process, while //:test3 will communicate with a separate process since it references a
* separate worker_tool.
*
* @throws IOException
*/
@Test
public void testGenrulesThatUseWorkerMacros() throws Exception {
ProjectFilesystem filesystem = new FakeProjectFilesystem();
BuildTarget target1 = workspace.newBuildTarget("//:test1");
BuildTarget target2 = workspace.newBuildTarget("//:test2");
BuildTarget target3 = workspace.newBuildTarget("//:test3");
workspace
.runBuckBuild(
target1.getFullyQualifiedName(),
target2.getFullyQualifiedName(),
target3.getFullyQualifiedName())
.assertSuccess();
workspace.verify(
Paths.get("test1_output.expected"), BuildTargets.getGenPath(filesystem, target1, "%s"));
workspace.verify(
Paths.get("test2_output.expected"), BuildTargets.getGenPath(filesystem, target2, "%s"));
workspace.verify(
Paths.get("test3_output.expected"), BuildTargets.getGenPath(filesystem, target3, "%s"));
}
/**
* This test builds two genrules simultaneously. //:test4 and //:test5 both reference the same
* worker_tool, with `max_workers` set to unlimited. They will both communicate with their own
* separate external process, started up with the same command line.
*/
@Test
public void testGenrulesThatUseWorkerMacrosWithConcurrency() throws Exception {
ProjectFilesystem filesystem = new FakeProjectFilesystem();
BuildTarget target1 = workspace.newBuildTarget("//:test4");
BuildTarget target2 = workspace.newBuildTarget("//:test5");
workspace
.runBuckBuild(target1.getFullyQualifiedName(), target2.getFullyQualifiedName())
.assertSuccess();
String contents =
workspace.getFileContents(BuildTargets.getGenPath(filesystem, target1, "%s/output.txt"))
+ workspace.getFileContents(
BuildTargets.getGenPath(filesystem, target2, "%s/output.txt"));
ImmutableSet<String> processIDs = ImmutableSet.copyOf(contents.trim().split("\\s+"));
assertThat(processIDs.size(), Matchers.equalTo(2));
}
@Test
public void testPersistentWorkerToolRules() throws Exception {
BuildTarget target1 = workspace.newBuildTarget("//:test6");
BuildTarget target2 = workspace.newBuildTarget("//:test7");
workspace
.runBuckBuild(target1.getFullyQualifiedName(), target2.getFullyQualifiedName())
.assertSuccess();
}
@Test
public void testPersistentWorkerToolReusesProcess() throws Exception {
ProjectFilesystem filesystem = new FakeProjectFilesystem();
BuildTarget target1 = workspace.newBuildTarget("//:test6");
BuildTarget target2 = workspace.newBuildTarget("//:test7");
workspace.runBuckdCommand("build", target1.getFullyQualifiedName()).assertSuccess();
workspace.runBuckdCommand("build", target2.getFullyQualifiedName()).assertSuccess();
String contents =
workspace.getFileContents(BuildTargets.getGenPath(filesystem, target1, "%s/output.txt"))
+ workspace.getFileContents(
BuildTargets.getGenPath(filesystem, target2, "%s/output.txt"));
ImmutableSet<String> processIDs = ImmutableSet.copyOf(contents.trim().split("\\s+"));
assertThat(processIDs.size(), Matchers.equalTo(1));
}
@Test
public void testPersistentWorkerToolReusesProcessOnlyIfUnchanged() throws Exception {
ProjectFilesystem filesystem = new FakeProjectFilesystem();
BuildTarget target1 = workspace.newBuildTarget("//:test6");
BuildTarget target2 = workspace.newBuildTarget("//:test7");
ProjectWorkspace.ProcessResult result =
workspace.runBuckdCommand("build", target1.getFullyQualifiedName());
result.assertSuccess();
workspace.replaceFileContents("concurrent_tool.sh", "sleep 1", "sleep 2");
result = workspace.runBuckdCommand("build", target2.getFullyQualifiedName());
result.assertSuccess();
String contents =
workspace.getFileContents(BuildTargets.getGenPath(filesystem, target1, "%s/output.txt"))
+ workspace.getFileContents(
BuildTargets.getGenPath(filesystem, target2, "%s/output.txt"));
ImmutableSet<String> processIDs = ImmutableSet.copyOf(contents.trim().split("\\s+"));
assertThat(processIDs.size(), Matchers.equalTo(2));
}
@Test
public void testWorkerToolArgs() throws Exception {
ProjectFilesystem filesystem = new FakeProjectFilesystem();
BuildTarget target1 = workspace.newBuildTarget("//:test8");
BuildTarget target2 = workspace.newBuildTarget("//:test9");
workspace
.runBuckBuild(target1.getFullyQualifiedName(), target2.getFullyQualifiedName())
.assertSuccess();
workspace.verify(
Paths.get("test8_output.expected"), BuildTargets.getGenPath(filesystem, target1, "%s"));
workspace.verify(
Paths.get("test9_output.expected"), BuildTargets.getGenPath(filesystem, target2, "%s"));
}
@Test
public void testWorkerCrashDoesNotHang() throws Exception {
workspace.runBuckBuild("//:test10").assertFailure();
}
}