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/*
* Copyright (C) 2013 The Guava Authors
*
* 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.common.util.concurrent;
import static com.google.common.util.concurrent.Service.State.FAILED;
import static com.google.common.util.concurrent.Service.State.NEW;
import static com.google.common.util.concurrent.Service.State.RUNNING;
import static com.google.common.util.concurrent.Service.State.STARTING;
import static com.google.common.util.concurrent.Service.State.STOPPING;
import static com.google.common.util.concurrent.Service.State.TERMINATED;
import java.util.Locale;
import junit.framework.TestCase;
/** Unit tests for {@link Service} */
public class ServiceTest extends TestCase {
/** Assert on the comparison ordering of the State enum since we guarantee it. */
public void testStateOrdering() {
// List every valid (direct) state transition.
assertLessThan(NEW, STARTING);
assertLessThan(NEW, TERMINATED);
assertLessThan(STARTING, RUNNING);
assertLessThan(STARTING, STOPPING);
assertLessThan(STARTING, FAILED);
assertLessThan(RUNNING, STOPPING);
assertLessThan(RUNNING, FAILED);
assertLessThan(STOPPING, FAILED);
assertLessThan(STOPPING, TERMINATED);
}
private static <T extends Comparable<? super T>> void assertLessThan(T a, T b) {
if (a.compareTo(b) >= 0) {
fail(String.format(Locale.ROOT, "Expected %s to be less than %s", a, b));
}
}
}
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