/***********************************************************************************************************************
 *
 * Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
 *
 * 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 eu.stratosphere.util;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class StringUtilsTest {

	@Test
	public void testControlCharacters() {
		String testString = "\b \t \n \f \r default";
		String controlString = StringUtils.showControlCharacters(testString);
		assertEquals("\\b \\t \\n \\f \\r default", controlString);
	}
	
	@Test
	public void testArrayToString() {
		double[] array = {1.0};
		String controlString = StringUtils.arrayToString(array );
		assertEquals("[1.0]", controlString);
	}

	@Test
	public void testEscapeHTML() {
		String testString = "\b \t / \n \f \r <default>";
		String controlString = StringUtils.escapeHtml(testString);
		assertEquals("\\b \\t \\/ <br> \\f \\r <default>", controlString);
	}
	
	@Test
	public void testStringToHexArray() {
		String hex = "019f314a";
		byte[] hexArray = StringUtils.hexStringToByte(hex);
		byte[] expectedArray = new byte[]{1, -97, 49, 74 };
		assertArrayEquals(expectedArray, hexArray);
	}
	
	@Test
	public void testHexArrayToString() {
		byte[] byteArray = new byte[]{1, -97, 49, 74 };
		String hex = StringUtils.byteToHexString(byteArray);
		assertEquals("019f314a", hex);
	}
}