/*
* 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.tools.ant.util.regexp;
import java.io.IOException;
import java.util.Vector;
import junit.framework.TestCase;
/**
* Tests for all implementations of the RegexpMatcher interface.
*
*/
public abstract class RegexpMatcherTest extends TestCase {
public final static String UNIX_LINE = "\n";
private RegexpMatcher reg;
public abstract RegexpMatcher getImplementation();
protected final RegexpMatcher getReg() {return reg;}
public RegexpMatcherTest(String name) {
super(name);
}
public void setUp() {
reg = getImplementation();
}
public void testMatches() {
reg.setPattern("aaaa");
assertTrue("aaaa should match itself", reg.matches("aaaa"));
assertTrue("aaaa should match xaaaa", reg.matches("xaaaa"));
assertTrue("aaaa shouldn\'t match xaaa", !reg.matches("xaaa"));
reg.setPattern("^aaaa");
assertTrue("^aaaa shouldn\'t match xaaaa", !reg.matches("xaaaa"));
assertTrue("^aaaa should match aaaax", reg.matches("aaaax"));
reg.setPattern("aaaa$");
assertTrue("aaaa$ shouldn\'t match aaaax", !reg.matches("aaaax"));
assertTrue("aaaa$ should match xaaaa", reg.matches("xaaaa"));
reg.setPattern("[0-9]+");
assertTrue("[0-9]+ should match 123", reg.matches("123"));
assertTrue("[0-9]+ should match 1", reg.matches("1"));
assertTrue("[0-9]+ shouldn\'t match \'\'", !reg.matches(""));
assertTrue("[0-9]+ shouldn\'t match a", !reg.matches("a"));
reg.setPattern("[0-9]*");
assertTrue("[0-9]* should match 123", reg.matches("123"));
assertTrue("[0-9]* should match 1", reg.matches("1"));
assertTrue("[0-9]* should match \'\'", reg.matches(""));
assertTrue("[0-9]* should match a", reg.matches("a"));
reg.setPattern("([0-9]+)=\\1");
assertTrue("([0-9]+)=\\1 should match 1=1", reg.matches("1=1"));
assertTrue("([0-9]+)=\\1 shouldn\'t match 1=2", !reg.matches("1=2"));
}
public void testGroups() {
reg.setPattern("aaaa");
Vector v = reg.getGroups("xaaaa");
assertEquals("No parens -> no extra groups", 1, v.size());
assertEquals("Trivial match with no parens", "aaaa",
(String) v.elementAt(0));
reg.setPattern("(aaaa)");
v = reg.getGroups("xaaaa");
assertEquals("Trivial match with single paren", 2, v.size());
assertEquals("Trivial match with single paren, full match", "aaaa",
(String) v.elementAt(0));
assertEquals("Trivial match with single paren, matched paren", "aaaa",
(String) v.elementAt(0));
reg.setPattern("(a+)b(b+)");
v = reg.getGroups("xaabb");
assertEquals(3, v.size());
assertEquals("aabb", (String) v.elementAt(0));
assertEquals("aa", (String) v.elementAt(1));
assertEquals("b", (String) v.elementAt(2));
}
public void testBugzillaReport14619() {
reg.setPattern("^(.*)/src/((.*/)*)([a-zA-Z0-9_\\.]+)\\.java$");
Vector v = reg.getGroups("de/tom/src/Google.java");
assertEquals(5, v.size());
assertEquals("de/tom", v.elementAt(1));
assertEquals("", v.elementAt(2));
assertEquals("", v.elementAt(3));
assertEquals("Google", v.elementAt(4));
}
public void testCaseInsensitiveMatch() {
reg.setPattern("aaaa");
assertTrue("aaaa doesn't match AAaa", !reg.matches("AAaa"));
assertTrue("aaaa matches AAaa ignoring case",
reg.matches("AAaa", RegexpMatcher.MATCH_CASE_INSENSITIVE));
}
// make sure there are no issues concerning line separator interpretation
// a line separator for regex (perl) is always a unix line (ie \n)
public void testParagraphCharacter() throws IOException {
reg.setPattern("end of text$");
assertTrue("paragraph character", !reg.matches("end of text\u2029"));
}
public void testLineSeparatorCharacter() throws IOException {
reg.setPattern("end of text$");
assertTrue("line-separator character", !reg.matches("end of text\u2028"));
}
public void testNextLineCharacter() throws IOException {
reg.setPattern("end of text$");
assertTrue("next-line character", !reg.matches("end of text\u0085"));
}
public void testStandaloneCR() throws IOException {
reg.setPattern("end of text$");
assertTrue("standalone CR", !reg.matches("end of text\r"));
}
public void testWindowsLineSeparator() throws IOException {
reg.setPattern("end of text$");
assertTrue("Windows line separator", !reg.matches("end of text\r\n"));
}
public void testWindowsLineSeparator2() throws IOException {
reg.setPattern("end of text\r$");
assertTrue("Windows line separator", reg.matches("end of text\r\n"));
}
public void testUnixLineSeparator() throws IOException {
reg.setPattern("end of text$");
assertTrue("Unix line separator", reg.matches("end of text\n"));
}
public void testMultiVersusSingleLine() throws IOException {
StringBuffer buf = new StringBuffer();
buf.append("Line1").append(UNIX_LINE);
buf.append("starttest Line2").append(UNIX_LINE);
buf.append("Line3 endtest").append(UNIX_LINE);
buf.append("Line4").append(UNIX_LINE);
String text = buf.toString();
doStartTest1(text);
doStartTest2(text);
doEndTest1(text);
doEndTest2(text);
}
protected void doStartTest1(String text) {
reg.setPattern("^starttest");
assertTrue("^starttest in default mode", !reg.matches(text));
assertTrue("^starttest in single line mode",
!reg.matches(text, RegexpMatcher.MATCH_SINGLELINE));
assertTrue("^starttest in multi line mode",
reg.matches(text, RegexpMatcher.MATCH_MULTILINE));
}
protected void doStartTest2(String text) {
reg.setPattern("^Line1");
assertTrue("^Line1 in default mode", reg.matches(text));
assertTrue("^Line1 in single line mode",
reg.matches(text, RegexpMatcher.MATCH_SINGLELINE));
assertTrue("^Line1 in multi line mode",
reg.matches(text, RegexpMatcher.MATCH_MULTILINE));
}
protected void doEndTest1(String text) {
reg.setPattern("endtest$");
assertTrue("endtest$ in default mode", !reg.matches(text));
assertTrue("endtest$ in single line mode",
!reg.matches(text, RegexpMatcher.MATCH_SINGLELINE));
assertTrue("endtest$ in multi line mode",
reg.matches(text, RegexpMatcher.MATCH_MULTILINE));
}
protected void doEndTest2(String text) {
reg.setPattern("Line4$");
assertTrue("Line4$ in default mode", reg.matches(text));
assertTrue("Line4$ in single line mode",
reg.matches(text, RegexpMatcher.MATCH_SINGLELINE));
assertTrue("Line4$ in multi line mode",
reg.matches(text, RegexpMatcher.MATCH_MULTILINE));
}
}