| /* |
| * 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.jackrabbit.oak.commons.sort; |
| |
| import java.util.Random; |
| |
| import org.apache.commons.lang3.RandomStringUtils; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class EscapeUtilsTest { |
| |
| @Test |
| public void noOp() throws Exception{ |
| assertEquals(null, EscapeUtils.escapeLineBreak(null)); |
| assertEquals("abc", EscapeUtils.escapeLineBreak("abc")); |
| assertEquals("", EscapeUtils.escapeLineBreak("")); |
| assertEquals("some text with multi byte 田中 characters.", |
| EscapeUtils.escapeLineBreak("some text with multi byte 田中 characters.")); |
| } |
| |
| @Test |
| public void testEscape() throws Exception{ |
| assertEquals("ab\\nc\\r", EscapeUtils.escapeLineBreak("ab\nc\r")); |
| assertEquals("a\\\\z", EscapeUtils.escapeLineBreak("a\\z")); |
| assertEquals("some text with multi \\nbyte 田中 characters.", |
| EscapeUtils.escapeLineBreak("some text with multi \nbyte 田中 characters.")); |
| } |
| |
| @Test |
| public void noOpUnEscape() throws Exception{ |
| assertEquals(null, EscapeUtils.unescapeLineBreaks(null)); |
| assertEquals("abc", EscapeUtils.unescapeLineBreaks("abc")); |
| assertEquals("abc\b", EscapeUtils.unescapeLineBreaks("abc\b")); |
| assertEquals("", EscapeUtils.unescapeLineBreaks("")); |
| assertEquals("some text with multi byte 田中 characters.", |
| EscapeUtils.unescapeLineBreaks("some text with multi byte 田中 characters.")); |
| } |
| |
| @Test |
| public void testUnEscape() throws Exception{ |
| assertEquals("ab\nc\r", EscapeUtils.unescapeLineBreaks("ab\\nc\\r")); |
| assertEquals("a\\z", EscapeUtils.unescapeLineBreaks("a\\\\z")); |
| assertEquals("some text with multi \nbyte 田中 characters.", |
| EscapeUtils.unescapeLineBreaks("some text with multi \\nbyte 田中 characters.")); |
| } |
| |
| @Test |
| public void testEscapeUnEscape() throws Exception{ |
| assertEscape("ab\nc\r"); |
| assertEscape("a\\z"); |
| assertEscape("a\\\\z\nc"); |
| assertEscape("some text with multi \nbyte \r田中 characters\\."); |
| } |
| |
| @Test(expected = IllegalStateException.class) |
| public void invalidUnEscape() throws Exception{ |
| EscapeUtils.unescapeLineBreaks("abc\\"); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void invalidUnEscape2() throws Exception{ |
| //Pass an unescaped string. In an escaped string a literal '\' |
| // would always be escaped |
| EscapeUtils.unescapeLineBreaks("abc\\k\\n"); |
| } |
| |
| @Test |
| public void randomized() throws Exception { |
| Random r = new Random(1); |
| for (int i = 0; i < 100000; i++) { |
| int len = r.nextInt(10); |
| StringBuilder buff = new StringBuilder(); |
| for (int j = 0; j < len; j++) { |
| switch (r.nextInt(3)) { |
| case 0: |
| String s = "\\\r\nrnRN "; |
| buff.append(s.charAt(r.nextInt(s.length()))); |
| break; |
| case 1: |
| buff.append(RandomStringUtils.random(4, true, false)); |
| break; |
| case 2: |
| buff.append((char) r.nextInt(65000)); |
| break; |
| } |
| } |
| String original = buff.toString(); |
| String escaped = EscapeUtils.escapeLineBreak(original); |
| String unescaped = EscapeUtils.unescapeLineBreaks(escaped); |
| assertTrue(escaped.indexOf('\n') < 0); |
| assertTrue(escaped.indexOf('\r') < 0); |
| assertEquals(original, unescaped); |
| } |
| } |
| |
| private static void assertEscape(String text){ |
| String result = EscapeUtils.unescapeLineBreaks(EscapeUtils.escapeLineBreak(text)); |
| assertEquals(text, result); |
| } |
| } |