| /* |
| * 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 org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Vector; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Tests for all implementations of the RegexpMatcher interface. |
| * |
| */ |
| public abstract class RegexpMatcherTest { |
| |
| public static final String UNIX_LINE = "\n"; |
| |
| private RegexpMatcher reg; |
| |
| public abstract RegexpMatcher getImplementation(); |
| |
| protected final RegexpMatcher getReg() { |
| return reg; |
| } |
| |
| @Before |
| public void setUp() { |
| reg = getImplementation(); |
| } |
| |
| @Test |
| 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")); |
| } |
| |
| @Test |
| 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)); |
| } |
| |
| @Test |
| public void testBugzillaReport14619() { |
| reg.setPattern("^(.*)/src/((.*/)*)([a-zA-Z0-9_\\.]+)\\.java$"); |
| Vector v = reg.getGroups("de/tom/src/Google.java"); |
| assertEquals(5, v.size()); |
| assertEquals("de/tom", v.elementAt(1)); |
| assertEquals("", v.elementAt(2)); |
| assertEquals("", v.elementAt(3)); |
| assertEquals("Google", v.elementAt(4)); |
| } |
| |
| @Test |
| public void testCaseInsensitiveMatch() { |
| reg.setPattern("aaaa"); |
| assertTrue("aaaa doesn't match AAaa", !reg.matches("AAaa")); |
| assertTrue("aaaa matches AAaa ignoring case", |
| reg.matches("AAaa", RegexpMatcher.MATCH_CASE_INSENSITIVE)); |
| } |
| |
| // make sure there are no issues concerning line separator interpretation |
| // a line separator for regex (perl) is always a unix line (ie \n) |
| |
| @Test |
| public void testParagraphCharacter() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("paragraph character", !reg.matches("end of text\u2029")); |
| } |
| |
| @Test |
| public void testLineSeparatorCharacter() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("line-separator character", !reg.matches("end of text\u2028")); |
| } |
| |
| @Test |
| public void testNextLineCharacter() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("next-line character", !reg.matches("end of text\u0085")); |
| } |
| |
| @Test |
| public void testStandaloneCR() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("standalone CR", !reg.matches("end of text\r")); |
| } |
| |
| @Test |
| public void testWindowsLineSeparator() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("Windows line separator", !reg.matches("end of text\r\n")); |
| } |
| |
| @Test |
| public void testWindowsLineSeparator2() throws IOException { |
| reg.setPattern("end of text\r$"); |
| assertTrue("Windows line separator", reg.matches("end of text\r\n")); |
| } |
| |
| @Test |
| public void testUnixLineSeparator() throws IOException { |
| reg.setPattern("end of text$"); |
| assertTrue("Unix line separator", reg.matches("end of text\n")); |
| } |
| |
| @Test |
| public void testMultiVersusSingleLine() throws IOException { |
| StringBuilder buf = new StringBuilder(); |
| 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)); |
| } |
| |
| } |