1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17
18 package ch.elca.el4j.tests.services.exceptionhandler;
19
20 import static org.junit.Assert.assertEquals;
21 import static org.junit.Assert.fail;
22
23 import org.junit.Test;
24 import org.springframework.context.ApplicationContext;
25
26 import ch.elca.el4j.core.context.ModuleApplicationContext;
27 import ch.elca.el4j.services.exceptionhandler.ContextExceptionHandlerInterceptor;
28 import ch.elca.el4j.services.exceptionhandler.MissingContextException;
29
30 /**
31 * This class tests the context exception handler.
32 *
33 * <script type="text/javascript">printFileStatus
34 * ("$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/tags/el4j_1_5_1/el4j/framework/modules/exception_handling/src/test/java/ch/elca/el4j/tests/services/exceptionhandler/ContextExceptionHandlerTest.java $",
35 * "$Revision: 3038 $",
36 * "$Date: 2008-06-09 12:08:34 +0200 (Mon, 09 Jun 2008) $",
37 * "$Author: swismer $"
38 * );</script>
39 *
40 * @author Andreas Bur (ABU)
41 */
42 public class ContextExceptionHandlerTest{
43
44 /** The application context. */
45 private ApplicationContext m_appContext;
46
47 /** The bean that is guarded by the security facade. */
48 private A m_a;
49
50 /**
51 * Default constructor.
52 */
53 public ContextExceptionHandlerTest() {
54 m_appContext = new ModuleApplicationContext(
55 "scenarios/services/exceptionhandler/"
56 + "contextExceptionHandlerTest.xml", false);
57 m_a = (A) m_appContext.getBean("A");
58 }
59
60 /**
61 * Tests the context semantics. This test has to be driven manually. First
62 * a dialogue, then a log entry with stack trace and finally, again a
63 * dialogue is printed to the standard out.
64 */
65 @Test
66 public void testContextSemantics() {
67 ContextExceptionHandlerInterceptor.setContext("gui");
68 step(1, 1, 0);
69 ContextExceptionHandlerInterceptor.setContext("batch");
70 step(2, 0, 1);
71 step(2, 0, 1);
72 }
73
74 /**
75 * Tests whether the situation with a missing context is handled correclty.
76 */
77 @Test
78 public void testMissingContext() {
79 ContextExceptionHandlerInterceptor.setContext(null);
80 // Checkstyle: EmptyBlock off
81 try {
82 step(1, 1, 0);
83 fail("Expected a MissingContextException but didn't catch one.");
84 } catch (MissingContextException mce) { }
85 // Checkstyle: EmptyBlock on
86 }
87
88 /**
89 * Performs a division operation and checks whether the correct method was
90 * invoked.
91 *
92 * @param call
93 * The call's number used for displaying assertion failures.
94 *
95 * @param expectedGuiCalls
96 * The expected number of GUI error handling code invocations.
97 *
98 * @param expectedBatchCalls
99 * The expected number of batch error handling code invocations.
100 */
101 private void step(int call, int expectedGuiCalls, int expectedBatchCalls) {
102 MessageBoxExceptionHandler.s_numberOfHandleCalls = 0;
103 LogExceptonHandler.s_numberOfHandleCalls = 0;
104
105 int result = -1;
106 try {
107 result = m_a.div(1, 0);
108 } catch (MissingContextException mce) {
109 throw mce;
110 } catch (Throwable t) {
111 fail("Caught unexpected exception: " + t);
112 }
113
114 assertEquals("null was not transformed to 0.", 0, result);
115 assertEquals("Used wrong context (" + call + ")",
116 expectedGuiCalls,
117 MessageBoxExceptionHandler.s_numberOfHandleCalls);
118 assertEquals("Used wrong context (first call)",
119 expectedBatchCalls, LogExceptonHandler.s_numberOfHandleCalls);
120 }
121 }