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// Copyright 2021 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.buildtool;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.buildtool.util.BuildIntegrationTestCase;
import com.google.devtools.build.lib.events.Event;
import com.google.devtools.build.lib.events.EventCollector;
import com.google.devtools.build.lib.events.EventKind;
import com.google.devtools.build.lib.shell.Command;
import com.google.devtools.build.lib.vfs.Path;
import java.io.ByteArrayOutputStream;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Test that SUBCOMMAND events report command lines in a form than can be "replayed" by copy+paste
* to the shell.
*/
@RunWith(JUnit4.class)
public class SubcommandEventTest extends BuildIntegrationTestCase {
@Before
public void stageEmbeddedTools() throws Exception {
addOptions("--spawn_strategy=standalone");
}
@Test
public void testSubcommandEvent() throws Exception {
EventCollector eventCollector = new EventCollector(EventKind.SUBCOMMAND);
events.addHandler(eventCollector);
runtimeWrapper.addOptions("--subcommands");
write(
"hello/BUILD",
"genrule(name = 'hello',",
" outs = ['hello.out'],",
" cmd = 'echo \"Hello, World!\" > $(location hello.out)')");
// (1) Ensure that building the target creates the output:
buildTarget("//hello");
Path helloOut = Iterables.getOnlyElement(getArtifacts("//hello:hello.out")).getPath();
assertThat(helloOut.isFile()).isTrue();
assertThat(helloOut.getFileSize()).isEqualTo(14);
// (2) Delete the output:
helloOut.delete();
assertThat(helloOut.exists()).isFalse();
// (3) Test that the message in the SUBCOMMAND event replays the action:
String command = null;
for (Event event : eventCollector) {
command = event.getMessage();
if (command.contains("World")) {
break;
}
}
assertThat(
new Command(new String[] {"/bin/sh", "-c", command})
.execute(new ByteArrayOutputStream(), new ByteArrayOutputStream())
.getTerminationStatus()
.success())
.isTrue();
assertThat(helloOut.isFile()).isTrue();
assertThat(helloOut.getFileSize()).isEqualTo(14);
}
}