Coverage Report - org.apache.commons.latka.validators.BaseConditionalValidator
 
Classes in this File Line Coverage Branch Coverage Complexity
BaseConditionalValidator
0%
0/21
0%
0/12
1.375
 
 1  
 /*
 2  
  * Copyright 1999-2001,2004 The Apache Software Foundation.
 3  
  * 
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  * 
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  * 
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 
 17  
 package org.apache.commons.latka.validators;   
 18  
 
 19  
 import org.apache.commons.latka.ValidationException;
 20  
 import org.apache.commons.latka.http.Response;
 21  
 
 22  
 import org.apache.log4j.Category;
 23  
 
 24  
 /**
 25  
  * This subclass of BaseValidator largely removes the need of 
 26  
  * a validator to know whether a particular test is supposed
 27  
  * to succeed or fail.  The validate(Response) method 
 28  
  * becomes final, and the logic is moved into two 
 29  
  * abstract methods (see Javadocs): assertTrue(Response)
 30  
  * and generateBareExceptionMessage(). 
 31  
  * 
 32  
  * @author MorganDelagrange
 33  
  * @version
 34  
  * $Id: BaseConditionalValidator.java 155424 2005-02-26 13:09:29Z dirkv $
 35  
  */
 36  
 public abstract class BaseConditionalValidator extends BaseValidator {
 37  
     // ------------------------------------------------------ Instance Variables
 38  
 
 39  
     /** log4j category for output */
 40  0
     protected final Category _log = Category.getInstance(
 41  0
         BaseConditionalValidator.class);
 42  
     /** condition to test against */
 43  0
     protected boolean _condition = true;
 44  
 
 45  
     // ----------------------------------------------------------- Constructors
 46  
 
 47  
     /**
 48  
      * A test without a label
 49  
      * 
 50  
      * @param condition Whether the test should evaluate to true or false
 51  
      */
 52  
     public BaseConditionalValidator(boolean condition) {
 53  0
         this(null, condition);
 54  0
     }
 55  
 
 56  
     /**
 57  
      * A test with a label
 58  
      * 
 59  
      * @param label     test label
 60  
      * @param condition whether the test should evaluate to true or false
 61  
      */
 62  
     public BaseConditionalValidator(String label, boolean condition) {
 63  0
         super(label);
 64  0
         _condition = condition;
 65  0
     }
 66  
 
 67  
     // ---------------------------------------------------------------- Methods
 68  
 
 69  
     /**
 70  
      * Set whether or not this test is supposed to succeed
 71  
      * 
 72  
      * @param condition true if the test should succeed
 73  
      */
 74  
     public void setCondition(boolean condition) {
 75  0
         _condition = condition;
 76  0
     }
 77  
 
 78  
     /**
 79  
      * Returns whether or not this test is supposed to succeed
 80  
      * 
 81  
      * @return true if the test is supposed to succeed
 82  
      */
 83  
     public boolean getCondition() {
 84  0
         return _condition;
 85  
     }
 86  
 
 87  
     /**
 88  
      * Final method.  Implement the assertion logic for
 89  
      * the test in assertTrue(Response), and the exception generation
 90  
      * in generateBareExceptionMessage()
 91  
      * 
 92  
      * @param response Response from the HTTP server
 93  
      * @throws ValidationException when a validation fails
 94  
      */
 95  
     public final void validate(Response response) throws ValidationException {
 96  0
         boolean assertion = assertTrue(response);
 97  
 
 98  0
         if ((assertion == true) && (_condition == false)) {
 99  0
             throwValidationException();
 100  0
         } else if ((assertion == false) && (_condition == true)) {
 101  0
             throwValidationException();
 102  
         }
 103  0
     }
 104  
 
 105  
     /**
 106  
      * Return true or false, depending on whether or not
 107  
      * the test conditions were met.  This
 108  
      * is <i>regardless</i> of the value of getCondition(),
 109  
      * which is handled elsewhere.
 110  
      * 
 111  
      * Note: this method
 112  
      * should _only_ throw ValidationExceptions under 
 113  
      * exceptional circumstances (e.g. invalid regular 
 114  
      * expressions, IOExceptions, etc).  A successful test
 115  
      * should only return true or false.
 116  
      * 
 117  
      * @param response HTTP response
 118  
      * @return true if the test conditions were met, false otherwise
 119  
      * @throws ValidationException when a validation fails
 120  
      */
 121  
     public abstract boolean assertTrue(Response response) throws
 122  
         ValidationException;
 123  
 
 124  
     /**
 125  
      * The BASE exception message for a subclass of
 126  
      * BaseConditionalValidator.  Expect that the String
 127  
      * "EXPECTED" or "DID NOT EXPECT" will be prepended to
 128  
      * this message, depending on the value of getCondition().
 129  
      * For example, if you are validator attempts to match
 130  
      * regular expression <i>x</i>, this methods should
 131  
      * generate something like " TO MATCH REGULAR EXPRESSION
 132  
      * <i>x</i>.".
 133  
      * 
 134  
      * @return bare exception message, to which will be prepended
 135  
      *         "EXPECTED" or "DID NOT EXPECT"
 136  
      */
 137  
     public abstract String generateBareExceptionMessage();
 138  
 
 139  
     /**
 140  
      * Automatically generated exception messages, based
 141  
      * on the value of getCondition() and
 142  
      * generateBareExceptionMessage().
 143  
      * 
 144  
      * @exception ValidationException
 145  
      *                   generated Exception
 146  
      */
 147  
     protected void throwValidationException() throws ValidationException {
 148  
 
 149  0
         if (_condition == true) {
 150  0
             fail("EXPECTED" + generateBareExceptionMessage());
 151  
         } else {
 152  0
             fail("DID NOT EXPECT" + generateBareExceptionMessage());
 153  
         }
 154  
 
 155  0
     }
 156  
 
 157  
 }