LineEscaperTest.java

/*******************************************************************************
 * Copyright (c) 2011 The Board of Trustees of the Leland Stanford Junior University
 * as Operator of the SLAC National Accelerator Laboratory.
 * Copyright (c) 2011 Brookhaven National Laboratory.
 * EPICS archiver appliance is distributed subject to a Software License Agreement found
 * in file LICENSE that is included with this distribution.
 *******************************************************************************/
package edu.stanford.slac.archiverappliance.PB.utils;

import static org.junit.Assert.fail;

import java.util.Arrays;
import java.util.Random;

import org.epics.archiverappliance.ByteArray;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * Test the LineEscaper.
 * @author mshankar
 *
 */
public class LineEscaperTest {

	@Before
	public void setUp() throws Exception {
	}

	@After
	public void tearDown() throws Exception {
	}

	@Test
	public void testEscapeNewLines() {
		Random random = new Random();
		int total = 1000000;
		long exectime = 0;
		for(int i = 0; i < total; i++) {
			try {
				byte[] randombytes = new byte[64];
				random.nextBytes(randombytes);
				long start = System.currentTimeMillis();
				byte[] escapedbytes = LineEscaper.escapeNewLines(randombytes);
				byte[] unescapedbytes = LineEscaper.unescapeNewLines(escapedbytes);
				long end = System.currentTimeMillis();
				exectime += (end-start);
				if(!Arrays.equals(randombytes, unescapedbytes)) { 
					fail("Test failed");
				}
			} catch(Exception ex) {
				fail("Test failed with exception " + ex.getMessage());
			}
		}
		System.out.println("Time to escape/unescape " + total + " byte sequences is " + (exectime)/1000 + "(s) yielding " + (((float)total)/((exectime)/1000)) + " sequences per second");
	}
	
	@Test
	public void testEscapeNewLinesByteArray() {
		Random random = new Random();
		int total = 1000000;
		long exectime = 0;
		for(int i = 0; i < total; i++) {
			try {
				byte[] randombytes = new byte[64];
				random.nextBytes(randombytes);
				long start = System.currentTimeMillis();
				byte[] escapedbytes = LineEscaper.escapeNewLines(randombytes);
				ByteArray bar = new ByteArray(escapedbytes);
				bar.inPlaceUnescape();
				byte[] unescapedbytes = bar.unescapedBytes();
				long end = System.currentTimeMillis();
				exectime += (end-start);
				if(!Arrays.equals(randombytes, unescapedbytes)) { 
					fail("Test failed");
				}
			} catch(Exception ex) {
				fail("Test failed with exception " + ex.getMessage());
			}
		}
		System.out.println("Time to escape/unescape " + total + " byte sequences is " + (exectime)/1000 + "(s) yielding " + (((float)total)/((exectime)/1000)) + " sequences per second");
	}

}