Content of file BlameRevisionTest.java

/******************************************************************************
 *  Copyright (c) 2022 Simeon Andreev and others.
 *
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License 2.0
 *  which accompanies this distribution, and is available at
 *  https://www.eclipse.org/legal/epl-2.0/
 *
 *  SPDX-License-Identifier: EPL-2.0
 *****************************************************************************/
package org.eclipse.egit.ui.internal.blame;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;

import org.eclipse.egit.ui.common.LocalRepositoryTestCase;
import org.eclipse.egit.ui.internal.blame.BlameRevision.Diff;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.diff.RawText;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * Tests for {@link BlameRevision}.
 */
public class BlameRevisionTest extends LocalRepositoryTestCase {

	private Repository repo;

	@Before
	public void createRepo() throws Exception {
		repo = createLocalTestRepository(REPO1);
	}

	@After
	public void closeRepo() throws Exception {
		if (repo != null) {
			repo.close();
			repo = null;
		}
	}

	@Test
	public void testBlameRevisionForMovedFile() throws Exception {
		try (Git git = new Git(repo)) {
			git.commit().setMessage("initial commit").call();

			String defaultContent = "line1";
			String originalLine = defaultContent + "\n";
			String changedLine = defaultContent + " changed " + "\n";

			File workingTree = repo.getWorkTree();
			Path file1 = workingTree.toPath().resolve("file1.txt");
			Files.writeString(file1, originalLine);
			git.add().addFilepattern(".").call();
			RevCommit commit1 = git.commit().setMessage("file1 added").call();

			Files.writeString(file1, changedLine);
			git.add().addFilepattern(".").call();
			RevCommit commit2 = git.commit().setMessage("file1 changed").call();

			Files.delete(file1);
			Files.writeString(file1.getParent().resolve("file2.txt"),
					changedLine);

			git.add().addFilepattern(".").call();
			git.commit().setMessage("file1 renamed to file2").call();

			BlameRevision blameRevision = new BlameRevision();
			blameRevision.setRepository(repo);
			blameRevision.setCommit(commit2);
			blameRevision.setSourcePath(file1.getFileName().toString());

			Diff diff = blameRevision.getDiffToParent(commit1);
			assertNotNull("Expected a diff for a moved file", diff);

			RawText diffOldText = diff.getOldText();
			RawText diffNewText = diff.getNewText();
			assertEquals("Unexpected diff old text for a moved file",
					originalLine, toString(diffOldText));
			assertEquals("Unexpected diff new text for a moved file",
					changedLine, toString(diffNewText));
		}
	}

	private String toString(RawText diffOldText) {
		byte[] rawContent = diffOldText.getRawContent();
		return new String(rawContent);
Found reliance on default encoding in org.eclipse.egit.ui.internal.blame.BlameRevisionTest.toString(RawText): new String(byte[])
 Found a call to a method which will perform a byte to String (or String to byte) conversion, and will assume that the default platform encoding is suitable. This will cause the application behaviour to vary between platforms. Use an alternative API and specify a charset name or Charset object explicitly.  
	}
}