ListMap: create unit test

jme3-core/src/main/java/com/jme3/util/ListMap.java

@@ -43,21 +43,6 @@ import java.util.Map.Entry;
  */
 public final class ListMap<K, V> extends AbstractMap<K, V> implements Cloneable, Serializable {
 
-    public static void main(String[] args){
-        Map<String, String> map = new ListMap<String, String>();
-        map.put( "bob", "hello");
-        System.out.println(map.get("bob"));
-        map.remove("bob");
-        System.out.println(map.size());
-
-        map.put("abc", "1");
-        map.put("def", "2");
-        map.put("ghi", "3");
-        map.put("jkl", "4");
-        map.put("mno", "5");
-        System.out.println(map.get("ghi"));
-    }
-
     private final static class ListMapEntry<K, V> implements Map.Entry<K, V>, Cloneable {
 
         private final K key;

jme3-core/src/test/java/com/jme3/util/ListMapTest.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2009-2015 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.util;
+
+import java.util.Map.Entry;
+import org.junit.Test;
+
+/**
+ * Check if the {@link ListMap} class is working correctly.
+ * 
+ * @author Kirill Vainer
+ */
+public class ListMapTest {
+
+    @Test
+    public void testListMap() {
+        ListMap<String, String> listMap = new ListMap<String, String>();
+        listMap.put("bob", "hello");
+        assert "hello".equals(listMap.get("bob"));
+        assert "hello".equals(listMap.remove("bob"));
+        assert listMap.size() == 0;
+        assert listMap.isEmpty();
+
+        listMap.put("abc", "1");
+        listMap.put("def", "2");
+        listMap.put("ghi", "3");
+        listMap.put("jkl", "4");
+        listMap.put("mno", "5");
+        assert "3".equals(listMap.get("ghi"));
+        assert listMap.size() == 5;
+        assert !listMap.isEmpty();
+
+        // check iteration order, should be consistent
+        for (int i = 0; i < listMap.size(); i++) {
+            String expectedValue = Integer.toString(i + 1);
+            String key = listMap.getKey(i);
+            String value = listMap.getValue(i);
+            Entry<String, String> entry = listMap.getEntry(i);
+            assert key.equals(entry.getKey());
+            assert value.equals(entry.getValue());
+            assert expectedValue.equals(value);
+        }
+    }
+}