Browse Source
Bug: 291083 Eclipse-CQ: 3559 Change-Id: I5a10946637438052e7596489b9f9de3a0c6b2066 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>stable-0.7
Johannes Schindelin
15 years ago
committed by
Shawn O. Pearce
1 changed files with 109 additions and 0 deletions
@ -0,0 +1,109 @@
|
||||
/* |
||||
* Copyright (C) 2009, Johannes E. Schindelin |
||||
* Copyright (C) 2009, Johannes Schindelin <johannes.schindelin@gmx.de> |
||||
* and other copyright owners as documented in the project's IP log. |
||||
* |
||||
* This program and the accompanying materials are made available |
||||
* under the terms of the Eclipse Distribution License v1.0 which |
||||
* accompanies this distribution, is reproduced below, and is |
||||
* available at http://www.eclipse.org/org/documents/edl-v10.php
|
||||
* |
||||
* All rights reserved. |
||||
* |
||||
* Redistribution and use in source and binary forms, with or |
||||
* without modification, are permitted provided that the following |
||||
* conditions are met: |
||||
* |
||||
* - Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* |
||||
* - Redistributions in binary form must reproduce the above |
||||
* copyright notice, this list of conditions and the following |
||||
* disclaimer in the documentation and/or other materials provided |
||||
* with the distribution. |
||||
* |
||||
* - Neither the name of the Eclipse Foundation, Inc. nor the |
||||
* names of its contributors may be used to endorse or promote |
||||
* products derived from this software without specific prior |
||||
* written permission. |
||||
* |
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
||||
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
||||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
||||
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||||
*/ |
||||
|
||||
package org.eclipse.jgit.diff; |
||||
|
||||
import junit.framework.TestCase; |
||||
|
||||
public class MyersDiffTest extends TestCase { |
||||
public void testAtEnd() { |
||||
assertDiff("HELLO", "HELL", " -4,1 +4,0"); |
||||
} |
||||
|
||||
public void testAtStart() { |
||||
assertDiff("Git", "JGit", " -0,0 +0,1"); |
||||
} |
||||
|
||||
public void testSimple() { |
||||
assertDiff("HELLO WORLD", "LOW", |
||||
" -0,3 +0,0 -5,1 +2,0 -7,4 +3,0"); |
||||
// is ambiguous, could be this, too:
|
||||
// " -0,2 +0,0 -3,1 +1,0 -5,1 +2,0 -7,4 +3,0"
|
||||
} |
||||
|
||||
public void assertDiff(String a, String b, String edits) { |
||||
MyersDiff diff = new MyersDiff(toCharArray(a), toCharArray(b)); |
||||
assertEquals(edits, toString(diff.getEdits())); |
||||
} |
||||
|
||||
private static String toString(EditList list) { |
||||
StringBuilder builder = new StringBuilder(); |
||||
for (Edit e : list) |
||||
builder.append(" -" + e.beginA |
||||
+ "," + (e.endA - e.beginA) |
||||
+ " +" + e.beginB + "," + (e.endB - e.beginB)); |
||||
return builder.toString(); |
||||
} |
||||
|
||||
private static CharArray toCharArray(String s) { |
||||
return new CharArray(s); |
||||
} |
||||
|
||||
protected static String toString(Sequence seq, int begin, int end) { |
||||
CharArray a = (CharArray)seq; |
||||
return new String(a.array, begin, end - begin); |
||||
} |
||||
|
||||
protected static String toString(CharArray a, CharArray b, |
||||
int x, int k) { |
||||
return "(" + x + "," + (k + x) |
||||
+ (x < 0 ? '<' : |
||||
(x >= a.array.length ? |
||||
'>' : a.array[x])) |
||||
+ (k + x < 0 ? '<' : |
||||
(k + x >= b.array.length ? |
||||
'>' : b.array[k + x])) |
||||
+ ")"; |
||||
} |
||||
|
||||
private static class CharArray implements Sequence { |
||||
char[] array; |
||||
public CharArray(String s) { array = s.toCharArray(); } |
||||
public int size() { return array.length; } |
||||
public boolean equals(int i, Sequence other, int j) { |
||||
CharArray o = (CharArray)other; |
||||
return array[i] == o.array[j]; |
||||
} |
||||
} |
||||
} |
Loading…
Reference in new issue