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An open library used to connect to the ecFeed service. It can be also used as a standalone testing tool. It is integrated with Junit5 and generates a stream of test cases using a selected algorithm (e.g. Cartesian, N-Wise). There are no limitations associated with the off-line version but the user cannot access the on-line computation servers and the model database.

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/*******************************************************************************
 *
 * Copyright (c) 2016 ecFeed AS.                                                
 * All rights reserved. This program and the accompanying materials              
 * are made available under the terms of the Eclipse Public License v1.0         
 * which accompanies this distribution, and is available at                      
 * http://www.eclipse.org/legal/epl-v10.html 
 *  
 *******************************************************************************/

package com.ecfeed.core.utils;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class CheckSumHelper {

	public static String calculateSha1(String source) {

		try {
			MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
			messageDigest.reset();
			messageDigest.update(source.getBytes("UTF-8"));

			return StringHelper.bytesToHexString(messageDigest.digest());

		} catch(NoSuchAlgorithmException | UnsupportedEncodingException e) {
			return null;
		}
	}

}