/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.hadoop.util;
import org.apache.commons.lang.SystemUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;
public class TestSignalLogger {
public static final Log LOG = LogFactory.getLog(TestSignalLogger.class);
@Test(timeout=60000)
public void testInstall() throws Exception {
Assume.assumeTrue(SystemUtils.IS_OS_UNIX);
SignalLogger.INSTANCE.register(LOG);
try {
SignalLogger.INSTANCE.register(LOG);
Assert.fail("expected IllegalStateException from double registration");
} catch (IllegalStateException e) {
// fall through
}
}
}