1   /*
2    * Copyright 2002-2006 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  package org.apache.commons.jexl;
17  
18  import java.io.File;
19  import java.net.URL;
20  
21  import junit.framework.TestCase;
22  
23  /***
24   * Tests for ScriptFactory
25   * @since 1.1
26   */
27  public class ScriptFactoryTest extends TestCase {
28  
29      /***
30       * Creates a new test case.
31       * @param name the test case name.
32       */
33      public ScriptFactoryTest(String name) {
34          super(name);
35      }
36      
37      /***
38       * Ensure the factory can create a script from a String
39       * @throws Exception on a parse error
40       */
41      public void testCreateFromString() throws Exception {
42          String code = ";";
43          assertNotNull("No script created", ScriptFactory.createScript(code));
44      }
45  
46      /***
47       * Ensure the factory can create a script from a String
48       * @throws Exception on a parse error
49       */
50      public void testCreateFromSimpleString() throws Exception {
51          String code = "(1 + 2) * 4";
52          assertNotNull("No script created", ScriptFactory.createScript(code));
53      }
54  
55      /***
56       * Ensure the factory throws an NPE on an null String
57       * @throws Exception on a parse error
58       */
59      public void testCreateFromNullString() throws Exception {
60          String code = null;
61          try {
62              assertNotNull("No script created", ScriptFactory.createScript(code));
63              fail("Null script created");
64          } catch (NullPointerException e) {
65              // expected
66          }
67      }
68  
69      /***
70       * Ensure the factory can create a script from a file.
71       * @throws Exception on a parse error.
72       */
73      public void testCreateFromFile() throws Exception {
74          File testScript = new File("src/test-scripts/test1.jexl");
75          assertNotNull("No script created", ScriptFactory.createScript(testScript));
76      }
77  
78      /***
79       * Ensure the factory throws npe on a null file.
80       * @throws Exception on a parse error.
81       */
82      public void testCreateFromNullFile() throws Exception {
83          File testScript = null;
84          try
85          {
86              assertNotNull("No script created", ScriptFactory.createScript(testScript));
87              fail("Null script created");
88          }
89          catch (NullPointerException e)
90          {
91              // expected
92          }
93      }
94  
95      /***
96       * Ensure the factory can create a script from a URL.
97       * @throws Exception on a parse error.
98       */
99      public void testCreateFromURL() throws Exception {
100         URL testUrl = new File("src/test-scripts/test1.jexl").toURL();
101         assertNotNull("No script created", ScriptFactory.createScript(testUrl));
102     }
103 
104     /***
105      * Ensure the factory throws an NPE on an null URL
106      * @throws Exception on a parse error
107      */
108     public void testCreateFromNullURL() throws Exception {
109         URL code = null;
110         try {
111             assertNotNull("No script created", ScriptFactory.createScript(code));
112             fail("Null script created");
113         } catch (NullPointerException e) {
114             // expected
115         }
116     }
117 
118 }