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/*
* Copyright (C) 2008, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.patch;
import static java.nio.charset.StandardCharsets.ISO_8859_1;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import org.eclipse.jgit.junit.JGitTestUtil;
import org.junit.Test;
public class GetTextTest {
@Test
public void testGetText_BothISO88591() throws IOException {
final Charset cs = ISO_8859_1;
final Patch p = parseTestPatchFile();
assertTrue(p.getErrors().isEmpty());
assertEquals(1, p.getFiles().size());
final FileHeader fh = p.getFiles().get(0);
assertEquals(2, fh.getHunks().size());
assertEquals(readTestPatchFile(cs), fh.getScriptText(cs, cs));
}
@Test
public void testGetText_NoBinary() throws IOException {
final Charset cs = ISO_8859_1;
final Patch p = parseTestPatchFile();
assertTrue(p.getErrors().isEmpty());
assertEquals(1, p.getFiles().size());
final FileHeader fh = p.getFiles().get(0);
assertEquals(0, fh.getHunks().size());
assertEquals(readTestPatchFile(cs), fh.getScriptText(cs, cs));
}
@Test
public void testGetText_Convert() throws IOException {
final Charset csOld = ISO_8859_1;
final Charset csNew = UTF_8;
final Patch p = parseTestPatchFile();
assertTrue(p.getErrors().isEmpty());
assertEquals(1, p.getFiles().size());
final FileHeader fh = p.getFiles().get(0);
assertEquals(2, fh.getHunks().size());
// Read the original file as ISO-8859-1 and fix up the one place
// where we changed the character encoding. That makes the exp
// string match what we really expect to get back.
//
String exp = readTestPatchFile(csOld);
exp = exp.replace("\303\205ngstr\303\266m", "\u00c5ngstr\u00f6m");
assertEquals(exp, fh.getScriptText(csOld, csNew));
}
@Test
public void testGetText_DiffCc() throws IOException {
final Charset csOld = ISO_8859_1;
final Charset csNew = UTF_8;
final Patch p = parseTestPatchFile();
assertTrue(p.getErrors().isEmpty());
assertEquals(1, p.getFiles().size());
final CombinedFileHeader fh = (CombinedFileHeader) p.getFiles().get(0);
assertEquals(1, fh.getHunks().size());
// Read the original file as ISO-8859-1 and fix up the one place
// where we changed the character encoding. That makes the exp
// string match what we really expect to get back.
//
String exp = readTestPatchFile(csOld);
exp = exp.replace("\303\205ngstr\303\266m", "\u00c5ngstr\u00f6m");
assertEquals(exp, fh
.getScriptText(new Charset[] { csNew, csOld, csNew }));
}
private Patch parseTestPatchFile() throws IOException {
final String patchFile = JGitTestUtil.getName() + ".patch";
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;
}
}
private String readTestPatchFile(Charset cs) throws IOException {
final String patchFile = JGitTestUtil.getName() + ".patch";
try (InputStream in = getClass().getResourceAsStream(patchFile)) {
if (in == null) {
fail("No " + patchFile + " test vector");
return null; // Never happens
}
final InputStreamReader r = new InputStreamReader(in, cs);
char[] tmp = new char[2048];
final StringBuilder s = new StringBuilder();
int n;
while ((n = r.read(tmp)) > 0)
s.append(tmp, 0, n);
return s.toString();
}
}
}
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