BaseCacheKeyGeneratorTestCase.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.cache.key;

import com.liferay.portal.kernel.cache.key.CacheKeyGenerator;
import com.liferay.portal.kernel.util.StringBundler;

import java.io.Serializable;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

import junit.framework.TestCase;

import org.junit.Test;

/**
 * @author Shuyang Zhou
 */
public abstract class BaseCacheKeyGeneratorTestCase extends TestCase {

	@Test
	public void testConsistency() {
		StringBundler sb = new StringBundler(_KEYS);

		Serializable hashCode1 = cacheKeyGenerator.getCacheKey(sb.toString());

		Serializable hashCode2 = cacheKeyGenerator.getCacheKey(_KEYS);

		assertEquals(hashCode1, hashCode2);

		Serializable hashCode3 = cacheKeyGenerator.getCacheKey(sb);

		assertEquals(hashCode2, hashCode3);
	}

	@Test
	public void testScan() {
		Map<Serializable, String> map = new HashMap<>();

		for (int i = 0; i < 1000000; i++) {
			String value = String.valueOf(i);

			Serializable key = cacheKeyGenerator.getCacheKey(value);

			String oldValue = map.put(key, value);

			assertNull(
				oldValue + " and " + value + " generate the same key " + key,
				oldValue);
		}
	}

	@Test
	public void testSpecialCases() {
		Map<Serializable, String> checkMap = new HashMap<>();

		for (String[] values : _SPECIAL_CASES) {
			String value = Arrays.toString(values);

			Serializable key = cacheKeyGenerator.getCacheKey(values);

			String oldValue = checkMap.put(key, Arrays.toString(values));

			assertNull(
				oldValue + " and " + value + " generate the same key " + key,
				oldValue);
		}
	}

	protected CacheKeyGenerator cacheKeyGenerator;

	private static final String[] _KEYS = {"test1", "test2", "test3", "test4"};

	private static final String[][] _SPECIAL_CASES = {
		{
			"fetchByT_C_C_P_.java.lang.Long.java.lang.Long.java.lang.Long_A_",
			".", "10302", ".", "10303", ".", "13710"
		},
		{
			"fetchByT_C_C_P_.java.lang.Long.java.lang.Long.java.lang.Long_A_",
			".", "10302", ".", "10305", ".", "13510"
		}
	};

}