| /* |
| * 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 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("Expected %s to be less than %s", a, b)); |
| } |
| } |
| } |