/*
* 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 java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.TestCase;
import org.eclipse.jgit.patch.FileHeader;
import org.eclipse.jgit.patch.Patch;
import org.eclipse.jgit.util.RawParseUtils;
public class DiffFormatterReflowTest extends TestCase {
private RawText a;
private RawText b;
private FileHeader file;
private ByteArrayOutputStream out;
private DiffFormatter fmt;
protected void setUp() throws Exception {
super.setUp();
out = new ByteArrayOutputStream();
fmt = new DiffFormatter(out);
}
public void testNegativeContextFails() throws IOException {
init("X");
try {
fmt.setContext(-1);
fail("accepted negative context");
} catch (IllegalArgumentException e) {
// pass
}
}
public void testContext0() throws IOException {
init("X");
fmt.setContext(0);
assertFormatted();
}
public void testContext1() throws IOException {
init("X");
fmt.setContext(1);
assertFormatted();
}
public void testContext3() throws IOException {
init("X");
fmt.setContext(3);
assertFormatted();
}
public void testContext5() throws IOException {
init("X");
fmt.setContext(5);
assertFormatted();
}
public void testContext10() throws IOException {
init("X");
fmt.setContext(10);
assertFormatted();
}
public void testContext100() throws IOException {
init("X");
fmt.setContext(100);
assertFormatted();
}
public void testEmpty1() throws IOException {
init("E");
assertFormatted("E.patch");
}
public void testNoNewLine1() throws IOException {
init("Y");
assertFormatted("Y.patch");
}
public void testNoNewLine2() throws IOException {
init("Z");
assertFormatted("Z.patch");
}
private void init(final String name) throws IOException {
a = new RawText(readFile(name + "_PreImage"));
b = new RawText(readFile(name + "_PostImage"));
file = parseTestPatchFile(name + ".patch").getFiles().get(0);
}
private void assertFormatted() throws IOException {
assertFormatted(getName() + ".out");
}
private void assertFormatted(final String name) throws IOException {
fmt.format(file, a, b);
final String exp = RawParseUtils.decode(readFile(name));
assertEquals(exp, RawParseUtils.decode(out.toByteArray()));
}
private byte[] readFile(final String patchFile) throws IOException {
final InputStream in = getClass().getResourceAsStream(patchFile);
if (in == null) {
fail("No " + patchFile + " test vector");
return null; // Never happens
}
try {
final byte[] buf = new byte[1024];
final ByteArrayOutputStream temp = new ByteArrayOutputStream();
int n;
while ((n = in.read(buf)) > 0)
temp.write(buf, 0, n);
return temp.toByteArray();
} finally {
in.close();
}
}
private Patch parseTestPatchFile(final String patchFile) throws IOException {
final InputStream in = getClass().getResourceAsStream(patchFile);
if (in == null) {
fail("No " + patchFile + " test vector");
return null; // Never happens
}
try {
final Patch p = new Patch();
p.parse(in);
return p;
} finally {
in.close();
}
}
}