| /* |
| * 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(); |
| } |
| } |
| } |