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16 package org.apache.commons.jelly.core;
17
18 import java.net.URL;
19
20 import junit.framework.TestCase;
21 import junit.framework.TestSuite;
22
23 import org.apache.commons.jelly.Jelly;
24 import org.apache.commons.jelly.JellyContext;
25 import org.apache.commons.jelly.Script;
26 import org.apache.commons.jelly.TagLibrary;
27 import org.apache.commons.jelly.XMLOutput;
28
29 /***
30 * Makes sure that nested includes work correctly
31 *
32 * @author Morgan Delagrange
33 * @version $Revision: 201959 $
34 */
35 public class TestIncludeTag extends TestCase {
36
37 Jelly jelly = null;
38 JellyContext context = null;
39 XMLOutput xmlOutput = null;
40
41 public TestIncludeTag(String name) {
42 super(name);
43 }
44
45 public static TestSuite suite() throws Exception {
46 return new TestSuite(TestIncludeTag.class);
47 }
48
49 public void setUp(String scriptName) throws Exception {
50 URL url = this.getClass().getResource(scriptName);
51 if ( url == null ) {
52 throw new Exception(
53 "Could not find Jelly script: " + scriptName
54 + " in package of class: " + this.getClass().getName()
55 );
56 }
57 setUpFromURL(url);
58 }
59
60 public void setUpFromURL(URL url) throws Exception {
61 context = new CoreTaglibOnlyContext();
62 xmlOutput = XMLOutput.createDummyXMLOutput();
63
64 jelly = new Jelly();
65
66 jelly.setUrl(url);
67
68 String exturl = url.toExternalForm();
69 int lastSlash = exturl.lastIndexOf("/");
70 String extBase = exturl.substring(0,lastSlash+1);
71 URL baseurl = new URL(extBase);
72 context.setCurrentURL(baseurl);
73 }
74
75 public void testInnermost() throws Exception {
76
77 setUp("c.jelly");
78 Script script = jelly.compileScript();
79 script.run(context,xmlOutput);
80 assertTrue("should have set 'c' variable to 'true'",
81 context.getVariable("c").equals("true"));
82 }
83
84 public void testMiddle() throws Exception {
85
86 setUp("b.jelly");
87 Script script = jelly.compileScript();
88 script.run(context,xmlOutput);
89 assertTrue("should have set 'c' variable to 'true'",
90 context.getVariable("c").equals("true"));
91 assertTrue("should have set 'b' variable to 'true'",
92 context.getVariable("b").equals("true"));
93 }
94
95 public void testOutermost() throws Exception {
96
97 setUp("a.jelly");
98 Script script = jelly.compileScript();
99 script.run(context,xmlOutput);
100 assertTrue("should have set 'c' variable to 'true'",
101 context.getVariable("c").equals("true"));
102 assertTrue("should have set 'b' variable to 'true'",
103 context.getVariable("b").equals("true"));
104 assertTrue("should have set 'a' variable to 'true'",
105 context.getVariable("a").equals("true"));
106 }
107
108 /***
109 * Insure that includes happen correctly when Jelly scripts
110 * are referenced as a file (rather than as a classpath
111 * element). Specifically checks to make sure includes succeed
112 * when the initial script is not in the user.dir directory.
113 */
114 public void testFileInclude() throws Exception {
115
116 setUpFromURL(new URL("file:src/test/org/apache/commons/jelly/core/a.jelly"));
117 Script script = jelly.compileScript();
118 script.run(context,xmlOutput);
119 assertTrue("should have set 'c' variable to 'true'",
120 context.getVariable("c").equals("true"));
121 assertTrue("should have set 'b' variable to 'true'",
122 context.getVariable("b").equals("true"));
123 assertTrue("should have set 'a' variable to 'true'",
124 context.getVariable("a").equals("true"));
125 }
126
127 private class CoreTaglibOnlyContext extends JellyContext {
128
129 /***
130 * This implementations makes sure that only "jelly:core"
131 * taglib is instantiated, insuring that "optional" dependencies
132 * are not inadvertantly called. Specifically addresses a bug
133 * in older Jelly dev versions where a nested include
134 * would trigger instantiation of all tag libraries.
135 *
136 * @param namespaceURI
137 * @return
138 */
139 public TagLibrary getTagLibrary(String namespaceURI) {
140 if (namespaceURI.equals("jelly:core")) {
141 return super.getTagLibrary(namespaceURI);
142 }
143 throw new NoClassDefFoundError("Unexpected tag library uri: " +
144 namespaceURI);
145 }
146
147 }
148
149 }