| /* |
| * Copyright (C) 2009, Google Inc. |
| * Copyright (C) 2009, Johannes E. 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 static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.util.RawParseUtils; |
| import org.junit.Test; |
| |
| public class RawTextTest { |
| @Test |
| public void testEmpty() { |
| final RawText r = new RawText(new byte[0]); |
| assertEquals(0, r.size()); |
| } |
| |
| @Test |
| public void testEquals() { |
| final RawText a = new RawText(Constants.encodeASCII("foo-a\nfoo-b\n")); |
| final RawText b = new RawText(Constants.encodeASCII("foo-b\nfoo-c\n")); |
| RawTextComparator cmp = RawTextComparator.DEFAULT; |
| |
| assertEquals(2, a.size()); |
| assertEquals(2, b.size()); |
| |
| // foo-a != foo-b |
| assertFalse(cmp.equals(a, 0, b, 0)); |
| assertFalse(cmp.equals(b, 0, a, 0)); |
| |
| // foo-b == foo-b |
| assertTrue(cmp.equals(a, 1, b, 0)); |
| assertTrue(cmp.equals(b, 0, a, 1)); |
| } |
| |
| @Test |
| public void testWriteLine1() throws IOException { |
| final RawText a = new RawText(Constants.encodeASCII("foo-a\nfoo-b\n")); |
| final ByteArrayOutputStream o = new ByteArrayOutputStream(); |
| a.writeLine(o, 0); |
| final byte[] r = o.toByteArray(); |
| assertEquals("foo-a", RawParseUtils.decode(r)); |
| } |
| |
| @Test |
| public void testWriteLine2() throws IOException { |
| final RawText a = new RawText(Constants.encodeASCII("foo-a\nfoo-b")); |
| final ByteArrayOutputStream o = new ByteArrayOutputStream(); |
| a.writeLine(o, 1); |
| final byte[] r = o.toByteArray(); |
| assertEquals("foo-b", RawParseUtils.decode(r)); |
| } |
| |
| @Test |
| public void testWriteLine3() throws IOException { |
| final RawText a = new RawText(Constants.encodeASCII("a\n\nb\n")); |
| final ByteArrayOutputStream o = new ByteArrayOutputStream(); |
| a.writeLine(o, 1); |
| final byte[] r = o.toByteArray(); |
| assertEquals("", RawParseUtils.decode(r)); |
| } |
| |
| @Test |
| public void testComparatorReduceCommonStartEnd() |
| throws UnsupportedEncodingException { |
| final RawTextComparator c = RawTextComparator.DEFAULT; |
| Edit e; |
| |
| e = c.reduceCommonStartEnd(t(""), t(""), new Edit(0, 0, 0, 0)); |
| assertEquals(new Edit(0, 0, 0, 0), e); |
| |
| e = c.reduceCommonStartEnd(t("a"), t("b"), new Edit(0, 1, 0, 1)); |
| assertEquals(new Edit(0, 1, 0, 1), e); |
| |
| e = c.reduceCommonStartEnd(t("a"), t("a"), new Edit(0, 1, 0, 1)); |
| assertEquals(new Edit(1, 1, 1, 1), e); |
| |
| e = c.reduceCommonStartEnd(t("axB"), t("axC"), new Edit(0, 3, 0, 3)); |
| assertEquals(new Edit(2, 3, 2, 3), e); |
| |
| e = c.reduceCommonStartEnd(t("Bxy"), t("Cxy"), new Edit(0, 3, 0, 3)); |
| assertEquals(new Edit(0, 1, 0, 1), e); |
| |
| e = c.reduceCommonStartEnd(t("bc"), t("Abc"), new Edit(0, 2, 0, 3)); |
| assertEquals(new Edit(0, 0, 0, 1), e); |
| |
| e = new Edit(0, 5, 0, 5); |
| e = c.reduceCommonStartEnd(t("abQxy"), t("abRxy"), e); |
| assertEquals(new Edit(2, 3, 2, 3), e); |
| |
| RawText a = new RawText("p\na b\nQ\nc d\n".getBytes("UTF-8")); |
| RawText b = new RawText("p\na b \nR\n c d \n".getBytes("UTF-8")); |
| e = new Edit(0, 4, 0, 4); |
| e = RawTextComparator.WS_IGNORE_ALL.reduceCommonStartEnd(a, b, e); |
| assertEquals(new Edit(2, 3, 2, 3), e); |
| } |
| |
| @Test |
| public void testComparatorReduceCommonStartEnd_EmptyLine() |
| throws UnsupportedEncodingException { |
| RawText a; |
| RawText b; |
| Edit e; |
| |
| a = new RawText("R\n y\n".getBytes("UTF-8")); |
| b = new RawText("S\n\n y\n".getBytes("UTF-8")); |
| e = new Edit(0, 2, 0, 3); |
| e = RawTextComparator.DEFAULT.reduceCommonStartEnd(a, b, e); |
| assertEquals(new Edit(0, 1, 0, 2), e); |
| |
| a = new RawText("S\n\n y\n".getBytes("UTF-8")); |
| b = new RawText("R\n y\n".getBytes("UTF-8")); |
| e = new Edit(0, 3, 0, 2); |
| e = RawTextComparator.DEFAULT.reduceCommonStartEnd(a, b, e); |
| assertEquals(new Edit(0, 2, 0, 1), e); |
| } |
| |
| @Test |
| public void testComparatorReduceCommonStartButLastLineNoEol() |
| throws UnsupportedEncodingException { |
| RawText a; |
| RawText b; |
| Edit e; |
| a = new RawText("start".getBytes("UTF-8")); |
| b = new RawText("start of line".getBytes("UTF-8")); |
| e = new Edit(0, 1, 0, 1); |
| e = RawTextComparator.DEFAULT.reduceCommonStartEnd(a, b, e); |
| assertEquals(new Edit(0, 1, 0, 1), e); |
| } |
| |
| @Test |
| public void testComparatorReduceCommonStartButLastLineNoEol_2() |
| throws UnsupportedEncodingException { |
| RawText a; |
| RawText b; |
| Edit e; |
| a = new RawText("start".getBytes("UTF-8")); |
| b = new RawText("start of\nlastline".getBytes("UTF-8")); |
| e = new Edit(0, 1, 0, 2); |
| e = RawTextComparator.DEFAULT.reduceCommonStartEnd(a, b, e); |
| assertEquals(new Edit(0, 1, 0, 2), e); |
| } |
| |
| private static RawText t(String text) { |
| StringBuilder r = new StringBuilder(); |
| for (int i = 0; i < text.length(); i++) { |
| r.append(text.charAt(i)); |
| r.append('\n'); |
| } |
| try { |
| return new RawText(r.toString().getBytes("UTF-8")); |
| } catch (UnsupportedEncodingException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |