/*
* Copyright 2002-2017 the original author or 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 org.springframework.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Arjen Poutsma
*/
public class LinkedMultiValueMapTests {
private final LinkedMultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
@Test
public void add() {
map.add("key", "value1");
map.add("key", "value2");
assertEquals(1, map.size());
List<String> expected = new ArrayList<>(2);
expected.add("value1");
expected.add("value2");
assertEquals(expected, map.get("key"));
}
@Test
public void addAll() throws Exception {
map.add("key", "value1");
map.addAll("key", Arrays.asList("value2", "value3"));
assertEquals(1, map.size());
List<String> expected = new ArrayList<>(2);
expected.add("value1");
expected.add("value2");
expected.add("value3");
assertEquals(expected, map.get("key"));
}
@Test
public void getFirst() {
List<String> values = new ArrayList<>(2);
values.add("value1");
values.add("value2");
map.put("key", values);
assertEquals("value1", map.getFirst("key"));
assertNull(map.getFirst("other"));
}
@Test
public void set() {
map.set("key", "value1");
map.set("key", "value2");
assertEquals(1, map.size());
assertEquals(Collections.singletonList("value2"), map.get("key"));
}
@Test
public void equals() {
map.set("key1", "value1");
assertEquals(map, map);
MultiValueMap<String, String> o1 = new LinkedMultiValueMap<>();
o1.set("key1", "value1");
assertEquals(map, o1);
assertEquals(o1, map);
Map<String, List<String>> o2 = new HashMap<>();
o2.put("key1", Collections.singletonList("value1"));
assertEquals(map, o2);
assertEquals(o2, map);
}
}