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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.cli;
import joptsimple.OptionSet;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.Matchers.isEmptyString;
public class EvilCommandTests extends ESTestCase {
public void testCommandShutdownHook() throws Exception {
final AtomicBoolean closed = new AtomicBoolean();
final boolean shouldThrow = randomBoolean();
final Command command = new Command("test-command-shutdown-hook") {
@Override
protected void execute(Terminal terminal, OptionSet options) throws Exception {
}
@Override
public void close() throws IOException {
closed.set(true);
if (shouldThrow) {
throw new IOException("fail");
}
}
};
final MockTerminal terminal = new MockTerminal();
command.main(new String[0], terminal);
assertNotNull(command.shutdownHookThread.get());
// successful removal here asserts that the runtime hook was installed in Command#main
assertTrue(Runtime.getRuntime().removeShutdownHook(command.shutdownHookThread.get()));
command.shutdownHookThread.get().run();
command.shutdownHookThread.get().join();
assertTrue(closed.get());
final String output = terminal.getOutput();
if (shouldThrow) {
// ensure that we dump the exception
assertThat(output, containsString("java.io.IOException: fail"));
// ensure that we dump the stack trace too
assertThat(output, containsString("\tat org.elasticsearch.cli.EvilCommandTests$1.close"));
} else {
assertThat(output, isEmptyString());
}
}
}