1   /*
2    * $Id: CreditCardValidatorTest.java 366867 2006-01-07 17:55:14Z niallp $
3    * $Rev: 366867 $
4    * $Date: 2006-01-07 17:55:14 +0000 (Sat, 07 Jan 2006) $
5    *
6    * ====================================================================
7    * Copyright 2001-2006 The Apache Software Foundation
8    *
9    * Licensed under the Apache License, Version 2.0 (the "License");
10   * you may not use this file except in compliance with the License.
11   * You may obtain a copy of the License at
12   *
13   *     http://www.apache.org/licenses/LICENSE-2.0
14   *
15   * Unless required by applicable law or agreed to in writing, software
16   * distributed under the License is distributed on an "AS IS" BASIS,
17   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18   * See the License for the specific language governing permissions and
19   * limitations under the License.
20   */
21  
22  package org.apache.commons.validator;
23  
24  import junit.framework.TestCase;
25  
26  /***
27   * Test the CreditCardValidator class.
28   */
29  public class CreditCardValidatorTest extends TestCase {
30      
31      private static final String VALID_VISA = "4417123456789113";
32      private static final String VALID_SHORT_VISA = "4222222222222";
33      private static final String VALID_AMEX = "378282246310005";
34      private static final String VALID_MASTERCARD = "5105105105105100";
35      private static final String VALID_DISCOVER = "6011000990139424";
36      private static final String VALID_DINERS = "30569309025904";
37  
38  	/***
39  	 * Constructor for CreditCardValidatorTest.
40  	 */
41  	public CreditCardValidatorTest(String name) {
42  		super(name);
43  	}
44  
45  	public void testIsValid() {
46          CreditCardValidator ccv = new CreditCardValidator();
47          
48          assertFalse(ccv.isValid(null));
49          assertFalse(ccv.isValid(""));
50          assertFalse(ccv.isValid("123456789012"));   // too short
51          assertFalse(ccv.isValid("12345678901234567890"));   // too long
52          assertFalse(ccv.isValid("4417123456789112"));
53          assertFalse(ccv.isValid("4417q23456w89113"));
54          assertTrue(ccv.isValid(VALID_VISA));
55          assertTrue(ccv.isValid(VALID_SHORT_VISA));
56          assertTrue(ccv.isValid(VALID_AMEX));
57          assertTrue(ccv.isValid(VALID_MASTERCARD));
58          assertTrue(ccv.isValid(VALID_DISCOVER));
59          
60          // disallow Visa so it should fail even with good number
61          ccv = new CreditCardValidator(CreditCardValidator.AMEX);
62          assertFalse(ccv.isValid("4417123456789113"));
63  	}
64      
65      public void testAddAllowedCardType() {
66          CreditCardValidator ccv = new CreditCardValidator(CreditCardValidator.NONE);
67          // Turned off all cards so even valid numbers should fail
68          assertFalse(ccv.isValid(VALID_VISA));
69          assertFalse(ccv.isValid(VALID_AMEX));
70          assertFalse(ccv.isValid(VALID_MASTERCARD));
71          assertFalse(ccv.isValid(VALID_DISCOVER));
72          
73          // test our custom type
74          ccv.addAllowedCardType(new DinersClub());
75          assertTrue(ccv.isValid(VALID_DINERS));
76      }
77      
78      /***
79       * Test a custom implementation of CreditCardType.
80       */
81      private class DinersClub implements CreditCardValidator.CreditCardType {
82          private static final String PREFIX = "300,301,302,303,304,305,";
83          public boolean matches(String card) {
84              String prefix = card.substring(0, 3) + ",";
85              return ((PREFIX.indexOf(prefix) != -1) && (card.length() == 14));
86          }
87      }
88  
89  }