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- /*
- * 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.fail;
-
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
-
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.patch.FileHeader;
- import org.eclipse.jgit.patch.Patch;
- import org.eclipse.jgit.util.RawParseUtils;
- import org.junit.Before;
- import org.junit.Test;
-
- public class DiffFormatterReflowTest {
- private RawText a;
-
- private RawText b;
-
- private FileHeader file;
-
- private ByteArrayOutputStream out;
-
- private DiffFormatter fmt;
-
- @Before
- public void setUp() throws Exception {
- out = new ByteArrayOutputStream();
- fmt = new DiffFormatter(out);
- }
-
- @Test
- public void testNegativeContextFails() throws IOException {
- init("X");
- try {
- fmt.setContext(-1);
- fail("accepted negative context");
- } catch (IllegalArgumentException e) {
- // pass
- }
- }
-
- @Test
- public void testContext0() throws IOException {
- init("X");
- fmt.setContext(0);
- assertFormatted();
- }
-
- @Test
- public void testContext1() throws IOException {
- init("X");
- fmt.setContext(1);
- assertFormatted();
- }
-
- @Test
- public void testContext3() throws IOException {
- init("X");
- fmt.setContext(3);
- assertFormatted();
- }
-
- @Test
- public void testContext5() throws IOException {
- init("X");
- fmt.setContext(5);
- assertFormatted();
- }
-
- @Test
- public void testContext10() throws IOException {
- init("X");
- fmt.setContext(10);
- assertFormatted();
- }
-
- @Test
- public void testContext100() throws IOException {
- init("X");
- fmt.setContext(100);
- assertFormatted();
- }
-
- @Test
- public void testEmpty1() throws IOException {
- init("E");
- assertFormatted("E.patch");
- }
-
- @Test
- public void testNoNewLine1() throws IOException {
- init("Y");
- assertFormatted("Y.patch");
- }
-
- @Test
- public void testNoNewLine2() throws IOException {
- init("Z");
- assertFormatted("Z.patch");
- }
-
- private void init(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(JGitTestUtil.getName() + ".out");
- }
-
- private void assertFormatted(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(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(String patchFile) throws IOException {
- try (InputStream in = getClass().getResourceAsStream(patchFile)) {
- if (in == null) {
- fail("No " + patchFile + " test vector");
- return null; // Never happens
- }
- final Patch p = new Patch();
- p.parse(in);
- return p;
- }
- }
- }
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