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// Tags: JDK1.4
// Copyright (C) 2005 Ziga Mahkovec (ziga.mahkovec@klika.si)
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
package gnu.testlet.java.util.regex.Pattern;
import gnu.testlet.*;
import java.io.*;
import java.util.*;
import java.util.regex.*;
/**
* Tests the java.util.regex regular expression engine. The test cases are
* adapted from PCRE (www.pcre.org). Each test cases if formatted as:
* <pre>
* /regular expression 1/
* test string 1
* 0: matching group 0
* 1: matching group 1
* test string 2
* No match
test string 3
* ...
*
* /regular expression 2/
* ...
* </pre>
*/
public class pcrematches implements Testlet
{
private TestHarness harness;
/** Regex test suites from adapted from PCRE (http://www.pcre.org/license.txt). */
private static final String[] TEST_SUITES = {"testdata1", /*"testdata2",*/ "testdata3"};
/**
* Regex test case (containing a single regular expression and a list of tests).
*/
private static class RETestcase {
String regex;
List tests; // list of RETestcaseTest instances
}
/**
* Regex test (containing a single text string and a list of resulting groups).
*/
private static class RETestcaseTest {
String text;
List groups;
}
public void test (TestHarness harness)
{
this.harness = harness;
try {
for (int i=0; i<TEST_SUITES.length; i++) {
String suite = "gnu#testlet#java#util#regex#Pattern#" + TEST_SUITES[i];
BufferedReader reader = new BufferedReader(harness.getResourceReader(suite));
RETestcase tc = null;
while ((tc = readTestcase(reader)) != null) {
try
{
test(tc);
}
catch (PatternSyntaxException e)
{
harness.check(false, tc.regex);
}
}
}
}
catch (gnu.testlet.ResourceNotFoundException _)
{
harness.check(false, "All tests failed (ResourceNotFoundException)");
}
catch (IOException _)
{
harness.check(false, "All tests failed (IOException)");
}
}
private void test(RETestcase tc) throws PatternSyntaxException {
String regex = tc.regex.substring(tc.regex.indexOf('/') + 1,
tc.regex.lastIndexOf('/'));
String qual = tc.regex.substring(tc.regex.lastIndexOf('/') + 1);
int flags = 0;
if (qual.indexOf("i") != -1) {
flags |= Pattern.CASE_INSENSITIVE;
}
if (qual.indexOf("m") != -1) {
flags |= Pattern.MULTILINE;
}
Pattern pat = Pattern.compile(regex, flags);
for (Iterator i=tc.tests.iterator(); i.hasNext(); ) {
RETestcaseTest t = (RETestcaseTest)i.next();
Matcher mat = pat.matcher(decode(t.text));
if (mat.find()) {
int groups = mat.groupCount();
if (groups != t.groups.size() - 1) {
harness.debug("groups=" + groups + " expected=" + (t.groups.size() - 1));
harness.check(false, regex);
return;
}
boolean failed = false;
for (int j=0; j<=groups; j++) {
String g = decode((String)t.groups.get(j));
String g2 = mat.group(j);
if (!g.trim().equals(g2.trim())) {
harness.debug("j=" + j + " expected=" + g + " found=" + g2);
harness.check(false, regex);
return;
}
}
} else if (!t.groups.isEmpty()) {
harness.debug("match not found: regex=/" + regex + "/ text=\"" + t.text +"\"");
harness.check(false, regex);
return;
}
}
harness.check(true, regex);
}
private static RETestcase readTestcase(BufferedReader reader) throws IOException {
String line = reader.readLine();
if (line == null)
return null;
line = line.trim();
while (!line.startsWith("/") || line.lastIndexOf("/") == 0) {
line = reader.readLine();
if (line == null)
return null;
}
RETestcase tc = new RETestcase();
tc.regex = line;
tc.tests = new ArrayList();
while ((line = reader.readLine()) != null) {
line = line.trim();
if (line.length() == 0)
break;
RETestcaseTest test = new RETestcaseTest();
test.text = line;
test.groups = new ArrayList();
reader.mark(8096);
while ((line = reader.readLine()) != null) {
if (line.length() == 0)
break;
else if (line.startsWith(" ")) {
reader.reset();
break;
}
if (line.equals("No match"))
break;
line = line.substring(line.indexOf(':') + 1);
if (line.length() > 0)
line = line.substring(1);
test.groups.add(line);
reader.mark(8096);
}
tc.tests.add(test);
if (line == null || line.length() == 0)
break;
}
return tc;
}
private static String decode(String s) {
StringBuffer sb = new StringBuffer();
int p = 0;
int q = 0;
while (true) {
p = s.indexOf("\\u", q);
if (p == -1) {
sb.append(s.substring(q));
break;
}
sb.append(s.substring(q, p));
if (p + 6 <= s.length()) {
String hex = s.substring(p+2, p+6);
try {
int c = Integer.parseInt(hex, 16);
sb.append((char)c);
}
catch (NumberFormatException _) {
sb.append(s.substring(p, p+6));
}
q = p + 6;
}
else {
sb.append(s.substring(p, p+2));
q = p + 2;
}
}
return sb.toString();
}
}
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