package org.apache.groovy.util;

import org.junit.Assert;
import org.junit.Test;

import java.util.Map;

import static org.apache.groovy.util.Maps.of;
import static org.junit.Assert.*;

public class MapsTest {

    @Test
    public void inverse() {
        Map<String, Integer> map = Maps.of("a", 1, "b", 2, "c", 3);
        Map<Integer, String> inversedMap = Maps.inverse(map);

        Assert.assertEquals(map.size(), inversedMap.size());
        for (Map.Entry<Integer, String> entry : inversedMap.entrySet()) {
            Assert.assertEquals(map.get(entry.getValue()), entry.getKey());
        }

        try {
            Maps.inverse(Maps.of("a", 1, "b", 2, "c", 2));
        } catch (IllegalArgumentException e) {
            Assert.assertTrue(e.getMessage().contains("duplicated key found: 2"));
        }

        Map<Integer, String> inversedMap2 = Maps.inverse(Maps.of("a", 1, "b", 2, "c", 2), true);
        Assert.assertEquals(2, inversedMap2.size());
        Assert.assertEquals("a", inversedMap2.get(1));
        Assert.assertEquals("c", inversedMap2.get(2));
    }
}
@@ -1,8 +1,830 @@
+/*%0A *  Licensed to the Apache Software Foundation (ASF) under one%0A *  or more contributor license agreements.  See the NOTICE file%0A *  distributed with this work for additional information%0A *  regarding copyright ownership.  The ASF licenses this file%0A *  to you under the Apache License, Version 2.0 (the%0A *  %22License%22); you may not use this file except in compliance%0A *  with the License.  You may obtain a copy of the License at%0A *%0A *    http://www.apache.org/licenses/LICENSE-2.0%0A *%0A *  Unless required by applicable law or agreed to in writing,%0A *  software distributed under the License is distributed on an%0A *  %22AS IS%22 BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY%0A *  KIND, either express or implied.  See the License for the%0A *  specific language governing permissions and limitations%0A *  under the License.%0A */%0A
 package 
@@ -924,89 +924,8 @@
 p;%0A%0A
-import static org.apache.groovy.util.Maps.of;%0Aimport static org.junit.Assert.*;%0A%0A
 publ

add license header