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diff --git a/core/src/test/java/com/att/cadi/test/JU_Hash.java b/core/src/test/java/com/att/cadi/test/JU_Hash.java
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+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aai
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * Copyright © 2017 Amdocs
+ * * ===========================================================================
+ * * 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+package com.att.cadi.test;
+
+import org.junit.Test;
+
+import com.att.cadi.CadiException;
+import com.att.cadi.Hash;
+
+import junit.framework.Assert;
+
+public class JU_Hash {
+
+	@Test
+	public void test() throws CadiException {
+		String init = "m82347@csp.att.com:kumquat8rie@#Tomatos3";
+		String hashed = Hash.toHex(init.getBytes());
+		System.out.println(hashed);
+		byte[] ba = Hash.fromHex(hashed);
+		String recon = new String(ba);
+		System.out.println(recon);
+		Assert.assertEquals(init, recon);
+		
+		init =hashed.substring(1);
+		try {
+			hashed = Hash.fromHex(init).toString();
+			Assert.fail("Should have thrown Exception");
+		} catch (CadiException e) {
+			
+		}
+		
+		init = hashed.replace('1', '~');
+		try {
+			hashed = Hash.fromHex(init).toString();
+			Assert.fail("Should have thrown Exception");
+		} catch (CadiException e) {
+			
+		}
+	}
+
+}