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// Copyright 2015 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.server;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import com.google.devtools.build.lib.runtime.BlazeCommandDispatcher.LockingMode;
import com.google.devtools.build.lib.runtime.BlazeCommandDispatcher.ShutdownMethod;
import com.google.devtools.build.lib.server.RPCService.UnknownCommandException;
import com.google.devtools.build.lib.util.io.OutErr;
import com.google.devtools.build.lib.util.io.RecordingOutErr;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Just makes sure the RPC service understands commands.
*/
@RunWith(JUnit4.class)
public class RPCServiceTest {
private ServerCommand helloWorldCommand = new ServerCommand() {
@Override
public int exec(List<String> args, OutErr outErr, LockingMode lockingMode,
String clientDescription, long firstContactTime) {
outErr.printOut("Heelllloo....");
outErr.printErr("...world!");
return 42;
}
@Override
public ShutdownMethod shutdown() {
return ShutdownMethod.NONE;
}
};
private RPCService service =
new RPCService(helloWorldCommand);
@Test
public void testUnknownCommandException() {
try {
service.executeRequest(Arrays.asList("unknown"), new RecordingOutErr(), 0);
fail();
} catch (UnknownCommandException e) {
// success
} catch (Exception e){
fail();
}
}
@Test
public void testCommandGetsExecuted() throws Exception {
RecordingOutErr outErr = new RecordingOutErr();
int exitStatus = service.executeRequest(Arrays.asList("blaze"), outErr, 0);
assertEquals(42, exitStatus);
assertEquals("Heelllloo....", outErr.outAsLatin1());
assertEquals("...world!", outErr.errAsLatin1());
}
@Test
public void testDelimitation() throws Exception {
final List<String> savedArgs = new ArrayList<>();
RPCService service =
new RPCService(new ServerCommand() {
@Override
public int exec(List<String> args, OutErr outErr, LockingMode lockingMode,
String clientDescription, long firstContactTime) {
savedArgs.addAll(args);
return 0;
}
@Override
public ShutdownMethod shutdown() {
return ShutdownMethod.NONE;
}
});
List<String> args = Arrays.asList("blaze", "", " \n", "", "", "", "foo");
service.executeRequest(args, new RecordingOutErr(), 0);
assertEquals(args.subList(1, args.size()),
savedArgs);
}
@Test
public void testShutdownState() throws Exception {
assertEquals(ShutdownMethod.NONE, service.getShutdown());
service.shutdown(ShutdownMethod.CLEAN);
assertEquals(ShutdownMethod.CLEAN, service.getShutdown());
service.shutdown(ShutdownMethod.EXPUNGE);
assertEquals(ShutdownMethod.CLEAN, service.getShutdown());
}
@Test
public void testExpungeShutdown() throws Exception {
assertEquals(ShutdownMethod.NONE, service.getShutdown());
service.shutdown(ShutdownMethod.EXPUNGE);
assertEquals(ShutdownMethod.EXPUNGE, service.getShutdown());
}
@Test
public void testCommandFailsAfterShutdown() throws Exception {
RecordingOutErr outErr = new RecordingOutErr();
service.shutdown(ShutdownMethod.CLEAN);
try {
service.executeRequest(Arrays.asList("blaze"), outErr, 0);
fail();
} catch (IllegalStateException e) {
assertThat(e).hasMessage("Received request after shutdown.");
/* Make sure it does not execute the command! */
assertThat(outErr.outAsLatin1()).isEmpty();
assertThat(outErr.errAsLatin1()).isEmpty();
}
}
}
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