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Java > Open Source Codes > com > jcorporate > expresso > core > misc > tests > HexEncoderTest


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64
65 package com.jcorporate.expresso.core.misc.tests;
66
67 import com.jcorporate.expresso.core.misc.HexEncoder;
68 import com.jcorporate.expresso.services.test.CommandLineParser;
69 import com.jcorporate.expresso.services.test.ExpressoTestCase;
70 import junit.framework.TestSuite;
71
72
73 /**
74  * Tests The HexEncoder Class. A Class that will take binary numbers and
75  * product a Hexadecimal output.
76  *
77  * @author Michael Rimov
78  * @version $Revision: 1.2 $ on $Date: 2004/11/17 20:48:23 $
79  */
80 public class HexEncoderTest
81         extends ExpressoTestCase {
82     public HexEncoderTest(String JavaDoc testName)
83             throws Exception JavaDoc {
84         super(testName);
85     }
86
87     public static void main(String JavaDoc[] args)
88             throws Exception JavaDoc {
89
90         //Set the system properties we need
91 CommandLineParser.parseCommandLine(args);
92         junit.textui.TestRunner.run(suite());
93     }
94
95     /**
96      * Filler Function to conform to log4j test suites.
97      */
98     public static junit.framework.Test suite() {
99         return new TestSuite(HexEncoderTest.class);
100     }
101
102     /**
103      * Tests to make sure both arrays are equal values.
104      *
105      * @param array1[]
106      * @param array2[]
107      * @return true if array1 and array2 have equal values contained in them.
108      */
109     private static boolean arraysAreEqual(byte[] array1, byte[] array2) {
110         if (array1.length != array2.length) {
111             return false;
112         }
113
114         int len = array1.length;
115
116         for (int i = 0; i < len; i++) {
117             if (array1[i] != array2[i]) {
118                 return false;
119             }
120         }
121
122         return true;
123     } /* arraysAreEqual(byte, byte) */
124
125     /**
126      * This test case makes sure that various byte values get properly
127      * encoded and decoded back.
128      *
129      * @throws Exception if an error occurs during encode/decode process
130      */
131     public void testHexEncode()
132             throws Exception JavaDoc {
133         byte[][] testArray = {
134             {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, {5, 6, 7, 8, 9, 0, 35, 62, 33},
135             {(byte) 0x0A, (byte) 0xFF, (byte) 0xCA, (byte) 0xB1, (byte) 0x00, (byte) 0x42}
136         };
137
138         for (int i = 0; i < testArray.length; i++) {
139             byte[] test = testArray[i];
140             String JavaDoc encoded = HexEncoder.encode(test);
141             byte[] decoded = HexEncoder.decode(encoded);
142             assertTrue("Arrays Must Be Equal: i=" + i,
143                     arraysAreEqual(test, decoded));
144         }
145     }
146
147     /**
148      * This test makes sure that IllegalArgumentExceptions are thrown if
149      * invalid inputs are given to the system.
150      */
151     public void testBadInputs()
152             throws Exception JavaDoc {
153         String JavaDoc[] breakDecode = {"ABA", "", "ABCDEFHLKAMABACD"};
154
155         for (int i = 0; i < breakDecode.length; i++) {
156             try {
157                 byte[] decoded = HexEncoder.decode(breakDecode[i]);
158                 fail("Didn't handle bad input " + breakDecode[i]);
159             } catch (IllegalArgumentException JavaDoc ex) {
160             }
161         }
162     }
163 }
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