/
NoOpMapTest.java
110 lines (85 loc) · 2.77 KB
/
NoOpMapTest.java
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/*
*
* 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.activemq.artemis.utils.collections;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class NoOpMapTest {
@Test
public void testPut() {
Map<String, String> map = NoOpMap.instance();
assertNull(map.put("hello", "world"));
assertNull(map.put("hello", "world2"));
assertEquals(0, map.size());
}
@Test
public void testGet() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
assertNull(map.get("hello"));
}
@Test
public void testValues() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
Collection<String> values = map.values();
assertEquals(0, values.size());
}
@Test
public void testKeys() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
Set<String> keySet = map.keySet();
assertEquals(0, keySet.size());
}
@Test
public void testEntrySet() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
Set<Map.Entry<String, String>> entrySet = map.entrySet();
assertEquals(0, entrySet.size());
}
@Test
public void testIsEmpty() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
assertTrue(map.isEmpty());
}
@Test
public void testRemove() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
assertNull(map.remove("hello"));
}
@Test
public void testReplace() {
Map<String, String> map = NoOpMap.instance();
map.put("hello", "world");
assertNull(map.replace("hello", "world2"));
map.put("hello", "world");
assertFalse(map.replace("hello", "world", "world2"));
}
}