/*
 * Copyright 2004-2012 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.binding.collection;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import junit.framework.TestCase;

/**
 * Unit tests for {@link org.springframework.binding.collection.SharedMapDecorator}.
 */
public class SharedMapDecoratorTests extends TestCase {

	private SharedMapDecorator<String, String> map = new SharedMapDecorator<String, String>(
			new HashMap<String, String>());

	public void testGetPutRemove() {
		assertTrue(map.size() == 0);
		assertTrue(map.isEmpty());
		assertNull(map.get("foo"));
		assertFalse(map.containsKey("foo"));
		map.put("foo", "bar");
		assertTrue(map.size() == 1);
		assertFalse(map.isEmpty());
		assertNotNull(map.get("foo"));
		assertTrue(map.containsKey("foo"));
		assertTrue(map.containsValue("bar"));
		assertEquals("bar", map.get("foo"));
		map.remove("foo");
		assertTrue(map.size() == 0);
		assertNull(map.get("foo"));
	}

	public void testPutAll() {
		Map<String, String> all = new HashMap<String, String>();
		all.put("foo", "bar");
		all.put("bar", "baz");
		map.putAll(all);
		assertTrue(map.size() == 2);
	}

	public void testEntrySet() {
		map.put("foo", "bar");
		map.put("bar", "baz");
		Set<Map.Entry<String, String>> entrySet = map.entrySet();
		assertTrue(entrySet.size() == 2);
	}

	public void testKeySet() {
		map.put("foo", "bar");
		map.put("bar", "baz");
		Set<String> keySet = map.keySet();
		assertTrue(keySet.size() == 2);
	}

	public void testValues() {
		map.put("foo", "bar");
		map.put("bar", "baz");
		Collection<String> values = map.values();
		assertTrue(values.size() == 2);
	}
}