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Posted to dev@commons.apache.org by rd...@apache.org on 2003/10/04 14:34:49 UTC
cvs commit: jakarta-commons/digester/src/test/org/apache/commons/digester/plugins TestRecursion.java
rdonkin 2003/10/04 05:34:49
Added: digester/src/test/org/apache/commons/digester/plugins
TestRecursion.java
Log:
Test cases for plugins module. Submitted by Simon Kitching.
Revision Changes Path
1.1 jakarta-commons/digester/src/test/org/apache/commons/digester/plugins/TestRecursion.java
Index: TestRecursion.java
===================================================================
/*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
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* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
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* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
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package org.apache.commons.digester.plugins;
import java.util.List;
import java.util.Iterator;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.apache.commons.digester.*;
import org.apache.commons.digester.plugins.*;
/**
* Test cases for plugins with custom rules which include PluginCreateRule
* instances, allowing recursive datastructures to be processed.
*/
public class TestRecursion extends TestCase {
/** Standard constructor */
public TestRecursion(String name) {
super(name);
}
/** Set up instance variables required by this test case. */
public void setUp() {}
/** Return the tests included in this test suite. */
public static Test suite() {
return (new TestSuite(TestRecursion.class));
}
/** Tear down instance variables required by this test case.*/
public void tearDown() {}
// --------------------------------------------------------------- Test cases
public void testRecursiveRules() throws Exception {
// * tests that a rule can declare custom PluginCreateRules
// that allow it to plug in instances of itself below
// itself.
Digester digester = new Digester();
PluginRules rc = new PluginRules();
digester.setRules(rc);
PluginDeclarationRule pdr = new PluginDeclarationRule();
digester.addRule("*/plugin", pdr);
PluginCreateRule pcr = new PluginCreateRule(Widget.class);
digester.addRule("root/widget", pcr);
digester.addSetNext("root/widget", "addChild");
Container root = new Container();
digester.push(root);
try {
digester.parse(
TestAll.getInputStream(this, "test6.xml"));
}
catch(Exception e) {
throw e;
}
int nDescendants = countWidgets(root);
assertEquals(10, nDescendants);
}
private int countWidgets(Container c) {
List l = c.getChildren();
int sum = 0;
for(Iterator i = l.iterator(); i.hasNext(); ) {
Widget w = (Widget) i.next();
++sum;
if (w instanceof Container) {
sum += countWidgets((Container) w);
}
}
return sum;
}
}
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