198 lines
5.2 KiB
Java
198 lines
5.2 KiB
Java
/*
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* Copyright (C) 2009, Google Inc.
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* Copyright (C) 2009, Johannes E. Schindelin <johannes.schindelin@gmx.de>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.diff;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.fail;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import org.eclipse.jgit.junit.JGitTestUtil;
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import org.eclipse.jgit.patch.FileHeader;
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import org.eclipse.jgit.patch.Patch;
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import org.eclipse.jgit.util.RawParseUtils;
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import org.junit.Before;
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import org.junit.Test;
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public class DiffFormatterReflowTest {
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private RawText a;
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private RawText b;
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private FileHeader file;
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private ByteArrayOutputStream out;
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private DiffFormatter fmt;
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@Before
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public void setUp() throws Exception {
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out = new ByteArrayOutputStream();
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fmt = new DiffFormatter(out);
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}
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@Test
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public void testNegativeContextFails() throws IOException {
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init("X");
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try {
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fmt.setContext(-1);
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fail("accepted negative context");
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} catch (IllegalArgumentException e) {
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// pass
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}
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}
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@Test
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public void testContext0() throws IOException {
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init("X");
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fmt.setContext(0);
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assertFormatted();
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}
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@Test
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public void testContext1() throws IOException {
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init("X");
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fmt.setContext(1);
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assertFormatted();
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}
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@Test
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public void testContext3() throws IOException {
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init("X");
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fmt.setContext(3);
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assertFormatted();
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}
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@Test
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public void testContext5() throws IOException {
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init("X");
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fmt.setContext(5);
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assertFormatted();
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}
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@Test
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public void testContext10() throws IOException {
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init("X");
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fmt.setContext(10);
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assertFormatted();
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}
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@Test
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public void testContext100() throws IOException {
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init("X");
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fmt.setContext(100);
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assertFormatted();
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}
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@Test
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public void testEmpty1() throws IOException {
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init("E");
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assertFormatted("E.patch");
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}
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@Test
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public void testNoNewLine1() throws IOException {
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init("Y");
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assertFormatted("Y.patch");
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}
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@Test
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public void testNoNewLine2() throws IOException {
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init("Z");
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assertFormatted("Z.patch");
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}
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private void init(final String name) throws IOException {
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a = new RawText(readFile(name + "_PreImage"));
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b = new RawText(readFile(name + "_PostImage"));
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file = parseTestPatchFile(name + ".patch").getFiles().get(0);
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}
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private void assertFormatted() throws IOException {
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assertFormatted(JGitTestUtil.getName() + ".out");
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}
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private void assertFormatted(final String name) throws IOException {
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fmt.format(file, a, b);
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final String exp = RawParseUtils.decode(readFile(name));
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assertEquals(exp, RawParseUtils.decode(out.toByteArray()));
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}
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private byte[] readFile(final String patchFile) throws IOException {
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final InputStream in = getClass().getResourceAsStream(patchFile);
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if (in == null) {
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fail("No " + patchFile + " test vector");
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return null; // Never happens
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}
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try {
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final byte[] buf = new byte[1024];
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final ByteArrayOutputStream temp = new ByteArrayOutputStream();
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int n;
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while ((n = in.read(buf)) > 0)
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temp.write(buf, 0, n);
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return temp.toByteArray();
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} finally {
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in.close();
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}
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}
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private Patch parseTestPatchFile(final String patchFile) throws IOException {
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final InputStream in = getClass().getResourceAsStream(patchFile);
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if (in == null) {
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fail("No " + patchFile + " test vector");
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return null; // Never happens
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}
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try {
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final Patch p = new Patch();
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p.parse(in);
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return p;
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} finally {
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in.close();
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}
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}
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}
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