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*
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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* Unless required by applicable law or agreed to in writing, software
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package org.apache.hadoop.hbase.util;
import org.apache.hadoop.hbase.MediumTests;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.mockito.Mockito.verify;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
@Category(MediumTests.class)
public class TestEnvironmentEdgeManager {
@Test
public void testManageSingleton() {
EnvironmentEdgeManager.reset();
EnvironmentEdge edge = EnvironmentEdgeManager.getDelegate();
assertNotNull(edge);
assertTrue(edge instanceof DefaultEnvironmentEdge);
EnvironmentEdgeManager.reset();
EnvironmentEdge edge2 = EnvironmentEdgeManager.getDelegate();
assertFalse(edge == edge2);
IncrementingEnvironmentEdge newEdge = new IncrementingEnvironmentEdge();
EnvironmentEdgeManager.injectEdge(newEdge);
assertEquals(newEdge, EnvironmentEdgeManager.getDelegate());
//injecting null will result in default being assigned.
EnvironmentEdgeManager.injectEdge(null);
EnvironmentEdge nullResult = EnvironmentEdgeManager.getDelegate();
assertTrue(nullResult instanceof DefaultEnvironmentEdge);
}
@Test
public void testCurrentTimeInMillis() {
EnvironmentEdge mock = mock(EnvironmentEdge.class);
EnvironmentEdgeManager.injectEdge(mock);
long expectation = 3456;
when(mock.currentTimeMillis()).thenReturn(expectation);
long result = EnvironmentEdgeManager.currentTimeMillis();
verify(mock).currentTimeMillis();
assertEquals(expectation, result);
}
}