1   /*
2    * Copyright 2010 The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  package org.apache.hadoop.hbase.util;
21  
22  import org.junit.Test;
23  
24  import static junit.framework.Assert.assertEquals;
25  
26  /**
27   * Tests that the incrementing environment edge increments time instead of using
28   * the default.
29   */
30  public class TestIncrementingEnvironmentEdge {
31  
32    @Test
33    public void testGetCurrentTimeUsesSystemClock() {
34      IncrementingEnvironmentEdge edge = new IncrementingEnvironmentEdge();
35      assertEquals(1, edge.currentTimeMillis());
36      assertEquals(2, edge.currentTimeMillis());
37      assertEquals(3, edge.currentTimeMillis());
38      assertEquals(4, edge.currentTimeMillis());
39    }
40  }