Commons Digester example source code file (RegexRulesTestCase.java)

This example Commons Digester source code file (RegexRulesTestCase.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Digester tags/keywords

match, match, of, order, out, regex, regex, regexrules, rule, simple, simple, testrule, testrule, util, wrong

The Commons Digester RegexRulesTestCase.java source code

/* $Id: RegexRulesTestCase.java 992060 2010-09-02 19:09:47Z simonetripodi $
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.digester;

import static org.junit.Assert.assertEquals;

import java.util.List;

import org.junit.Test;

/**
 * Test case for RegexRules
 *
 * @author Robert Burrell Donkin
 * @version $Revision: 992060 $ $Date: 2010-09-02 21:09:47 +0200 (Thu, 02 Sep 2010) $
 */

public class RegexRulesTestCase {
    
    /** Test regex that matches everything */
    @Test
    public void testMatchAll() {
        // set up which should match every rule
        RegexRules rules = new RegexRules(
            new RegexMatcher() {
                @Override
                public boolean match(String pathPattern, String rulePattern) {
                    return true;
                }
            });
        
        rules.add("/a/b/b", new TestRule("alpha"));
        rules.add("/a/d", new TestRule("beta"));
        rules.add("/b", new TestRule("gamma"));
        
        // now test a few patterns
        // check that all are return in the order which they were added
        List<Rule> matches = rules.match("", "x/g/e");
        assertEquals("Wrong number of rules returned (1)", 3, matches.size());
        assertEquals("Rule Out Of Order (1)", "alpha", ((TestRule) matches.get(0)).getIdentifier());
        assertEquals("Rule Out Of Order (2)", "beta", ((TestRule) matches.get(1)).getIdentifier());
        assertEquals("Rule Out Of Order (3)", "gamma", ((TestRule) matches.get(2)).getIdentifier());
        
        matches = rules.match("", "/a");
        assertEquals("Wrong number of rules returned (2)", 3, matches.size());
        assertEquals("Rule Out Of Order (4)", "alpha", ((TestRule) matches.get(0)).getIdentifier());
        assertEquals("Rule Out Of Order (5)", "beta", ((TestRule) matches.get(1)).getIdentifier());
        assertEquals("Rule Out Of Order (6)", "gamma", ((TestRule) matches.get(2)).getIdentifier());        
    }
    
    /** Test regex matcher that matches nothing */
    @Test
    public void testMatchNothing() {
        // set up which should match every rule
        RegexRules rules = new RegexRules(
            new RegexMatcher() {
                @Override
                public boolean match(String pathPattern, String rulePattern) {
                    return false;
                }
            });
        
        rules.add("/b/c/f", new TestRule("alpha"));
        rules.add("/c/f", new TestRule("beta"));
        rules.add("/b", new TestRule("gamma"));
        
        // now test a few patterns
        // check that all are return in the order which they were added
        List<Rule> matches = rules.match("", "/b/c");
        assertEquals("Wrong number of rules returned (1)", 0, matches.size());
        
        matches = rules.match("", "/b/c/f");
        assertEquals("Wrong number of rules returned (2)", 0, matches.size());
    }

    /** Test a mixed regex - in other words, one that sometimes returns true and sometimes false */
    @Test
    public void testMatchMixed() {
        // set up which should match every rule
        RegexRules rules = new RegexRules(
            new RegexMatcher() {
                @Override
                public boolean match(String pathPattern, String rulePattern) {
                    return (rulePattern.equals("/match/me"));
                }
            });
        
        rules.add("/match", new TestRule("alpha"));
        rules.add("/match/me", new TestRule("beta"));
        rules.add("/match", new TestRule("gamma"));
        
        // now test a few patterns
        // check that all are return in the order which they were added
        List<Rule> matches = rules.match("", "/match");
        assertEquals("Wrong number of rules returned (1)", 1, matches.size());
        assertEquals("Wrong Rule (1)", "beta", ((TestRule) matches.get(0)).getIdentifier());
        
        matches = rules.match("", "/a/match");
        assertEquals("Wrong Rule (2)", "beta", ((TestRule) matches.get(0)).getIdentifier());
    }
        
    /** Test rules and clear methods */
    @Test
    public void testClear() {
        // set up which should match every rule
        RegexRules rules = new RegexRules(
            new RegexMatcher() {
                @Override
                public boolean match(String pathPattern, String rulePattern) {
                    return true;
                }
            });
        
        rules.add("/abba", new TestRule("alpha"));
        rules.add("/ad/ma", new TestRule("beta"));
        rules.add("/gamma", new TestRule("gamma"));
        
        // check that rules returns all rules in the order which they were added
        List<Rule> matches = rules.rules();
        assertEquals("Wrong number of rules returned (1)", 3, matches.size());
        assertEquals("Rule Out Of Order (1)", "alpha", ((TestRule) matches.get(0)).getIdentifier());
        assertEquals("Rule Out Of Order (2)", "beta", ((TestRule) matches.get(1)).getIdentifier());
        assertEquals("Rule Out Of Order (3)", "gamma", ((TestRule) matches.get(2)).getIdentifier());
        
        matches = rules.match("", "/eggs");
        assertEquals("Wrong number of rules returned (2)", 3, matches.size());
        assertEquals("Rule Out Of Order (4)", "alpha", ((TestRule) matches.get(0)).getIdentifier());
        assertEquals("Rule Out Of Order (5)", "beta", ((TestRule) matches.get(1)).getIdentifier());
        assertEquals("Rule Out Of Order (6)", "gamma", ((TestRule) matches.get(2)).getIdentifier());
        
        rules.clear();
        matches = rules.rules();
        assertEquals("Wrong number of rules returned (3)", 0, matches.size());
        
        matches = rules.match("", "/eggs");
        assertEquals("Wrong number of rules returned (4)", 0, matches.size());
    }

    @Test
    public void testSimpleRegexMatch() {
        
        SimpleRegexMatcher matcher = new SimpleRegexMatcher();
        
//        SimpleLog log = new SimpleLog("{testSimpleRegexMatch:SimpleRegexMatcher]");
//        log.setLevel(SimpleLog.LOG_LEVEL_TRACE);
        
        
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/beta/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/alpha/beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/beta/gamma/epsilon' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "/alpha/beta/gamma/epsilon"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/*' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/alpha/*"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/*/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/alpha/*/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/*me' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "/alpha/*me"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '*/beta/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "*/beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '*/alpha/beta/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "*/alpha/beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '*/bet/gamma' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "*/bet/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to 'alph?/beta/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/alph?/beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/?lpha/beta/gamma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/?lpha/beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/?beta/gamma' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "/alpha/?beta/gamma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/?eta/*' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "/alpha/?eta/*"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '/alpha/?eta/*e' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "/alpha/?eta/*e"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma' to '*/?et?/?amma' ", 
                true, 
                matcher.match("/alpha/beta/gamma", "*/?et?/?amma"));
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma/beta/epsilon/beta/gamma/epsilon' to "
                + " '*/beta/gamma/?p*n' ", 
                true, 
                matcher.match("/alpha/beta/gamma/beta/epsilon/beta/gamma/epsilon", "*/beta/gamma/?p*n"));     
        assertEquals(
                "Simple Regex Match '/alpha/beta/gamma/beta/epsilon/beta/gamma/epsilon' to "
                + " '*/beta/gamma/?p*no' ", 
                false, 
                matcher.match("/alpha/beta/gamma", "*/beta/gamma/?p*no"));  
    }
}