jgit/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RepositorySetupWorkDirTest.java

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 *
 * 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.
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 * 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
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 *   with the distribution.
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 * - 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
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package org.eclipse.jgit.lib;

import java.io.File;
import java.io.IOException;

import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase;

/**
 * Tests for setting up the working directory when creating a Repository
 */
public class RepositorySetupWorkDirTest extends LocalDiskRepositoryTestCase {

	public void testIsBare_CreateRepositoryFromArbitraryGitDir()
			throws Exception {
		File gitDir = getFile("workdir");
		assertTrue(new FileRepository(gitDir).isBare());
	}

	public void testNotBare_CreateRepositoryFromDotGitGitDir() throws Exception {
		File gitDir = getFile("workdir", Constants.DOT_GIT);
		Repository repo = new FileRepository(gitDir);
		assertFalse(repo.isBare());
		assertWorkdirPath(repo, "workdir");
		assertGitdirPath(repo, "workdir", Constants.DOT_GIT);
	}

	public void testWorkdirIsParentDir_CreateRepositoryFromDotGitGitDir()
			throws Exception {
		File gitDir = getFile("workdir", Constants.DOT_GIT);
		Repository repo = new FileRepository(gitDir);
		String workdir = repo.getWorkDir().getName();
		assertEquals(workdir, "workdir");
	}

	public void testNotBare_CreateRepositoryFromWorkDirOnly() throws Exception {
		File workdir = getFile("workdir", "repo");
		Repository repo = new FileRepository(null, workdir);
		assertFalse(repo.isBare());
		assertWorkdirPath(repo, "workdir", "repo");
		assertGitdirPath(repo, "workdir", "repo", Constants.DOT_GIT);
	}

	public void testWorkdirIsDotGit_CreateRepositoryFromWorkDirOnly()
			throws Exception {
		File workdir = getFile("workdir", "repo");
		Repository repo = new FileRepository(null, workdir);
		assertGitdirPath(repo, "workdir", "repo", Constants.DOT_GIT);
	}

	public void testNotBare_CreateRepositoryFromGitDirOnlyWithWorktreeConfig()
			throws Exception {
		File gitDir = getFile("workdir", "repoWithConfig");
		File workTree = getFile("workdir", "treeRoot");
		setWorkTree(gitDir, workTree);
		Repository repo = new FileRepository(gitDir, null);
		assertFalse(repo.isBare());
		assertWorkdirPath(repo, "workdir", "treeRoot");
		assertGitdirPath(repo, "workdir", "repoWithConfig");
	}

	public void testBare_CreateRepositoryFromGitDirOnlyWithBareConfigTrue()
			throws Exception {
		File gitDir = getFile("workdir", "repoWithConfig");
		setBare(gitDir, true);
		Repository repo = new FileRepository(gitDir, null);
		assertTrue(repo.isBare());
	}

	public void testWorkdirIsParent_CreateRepositoryFromGitDirOnlyWithBareConfigFalse()
			throws Exception {
		File gitDir = getFile("workdir", "repoWithBareConfigTrue", "child");
		setBare(gitDir, false);
		Repository repo = new FileRepository(gitDir, null);
		assertWorkdirPath(repo, "workdir", "repoWithBareConfigTrue");
	}

	public void testNotBare_CreateRepositoryFromGitDirOnlyWithBareConfigFalse()
			throws Exception {
		File gitDir = getFile("workdir", "repoWithBareConfigFalse", "child");
		setBare(gitDir, false);
		Repository repo = new FileRepository(gitDir, null);
		assertFalse(repo.isBare());
		assertWorkdirPath(repo, "workdir", "repoWithBareConfigFalse");
		assertGitdirPath(repo, "workdir", "repoWithBareConfigFalse", "child");
	}

	public void testNotBare_MakeBareUnbareBySetWorkdir() throws Exception {
		File gitDir = getFile("gitDir");
		Repository repo = new FileRepository(gitDir);
		repo.setWorkDir(getFile("workingDir"));
		assertFalse(repo.isBare());
		assertWorkdirPath(repo, "workingDir");
		assertGitdirPath(repo, "gitDir");
	}

	public void testExceptionThrown_BareRepoGetWorkDir() throws Exception {
		File gitDir = getFile("workdir");
		try {
			new FileRepository(gitDir).getWorkDir();
			fail("Expected IllegalStateException missing");
		} catch (IllegalStateException e) {
			// expected
		}
	}

	public void testExceptionThrown_BareRepoGetIndex() throws Exception {
		File gitDir = getFile("workdir");
		try {
			new FileRepository(gitDir).getIndex();
			fail("Expected IllegalStateException missing");
		} catch (IllegalStateException e) {
			// expected
		}
	}

	public void testExceptionThrown_BareRepoGetIndexFile() throws Exception {
		File gitDir = getFile("workdir");
		try {
			new FileRepository(gitDir).getIndexFile();
			fail("Expected Exception missing");
		} catch (IllegalStateException e) {
			// expected
		}
	}

	private File getFile(String... pathComponents) {
		String rootPath = new File(new File("target"), "trash").getPath();
		for (String pathComponent : pathComponents)
			rootPath = rootPath + File.separatorChar + pathComponent;
		File result = new File(rootPath);
		result.mkdir();
		return result;
	}

	private void setBare(File gitDir, boolean bare) throws IOException {
		FileRepository repo = new FileRepository(gitDir, null);
		repo.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
				ConfigConstants.CONFIG_KEY_BARE, bare);
		repo.getConfig().save();
	}

	private void setWorkTree(File gitDir, File workTree) throws IOException {
		FileRepository repo = new FileRepository(gitDir, null);
		repo.getConfig()
				.setString(ConfigConstants.CONFIG_CORE_SECTION, null,
						ConfigConstants.CONFIG_KEY_WORKTREE,
						workTree.getAbsolutePath());
		repo.getConfig().save();
	}

	private void assertGitdirPath(Repository repo, String... expected)
			throws IOException {
		File exp = getFile(expected).getCanonicalFile();
		File act = repo.getDirectory().getCanonicalFile();
		assertEquals("Wrong Git Directory", exp, act);
	}

	private void assertWorkdirPath(Repository repo, String... expected)
			throws IOException {
		File exp = getFile(expected).getCanonicalFile();
		File act = repo.getWorkDir().getCanonicalFile();
		assertEquals("Wrong working Directory", exp, act);
	}
}