/*
 * Copyright (C) 2009, Google Inc.
 * 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
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 * All rights reserved.
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 * without modification, are permitted provided that the following
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package org.eclipse.jgit.lib;

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

import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.RepositoryCache.FileKey;

public class RepositoryCacheTest extends RepositoryTestCase {
	public void testNonBareFileKey() {
		File gitdir = db.getDirectory();
		File parent = gitdir.getParentFile();
		File other = new File(parent, "notagit");
		assertEquals(gitdir, FileKey.exact(gitdir).getFile());
		assertEquals(parent, FileKey.exact(parent).getFile());
		assertEquals(other, FileKey.exact(other).getFile());

		assertEquals(gitdir, FileKey.lenient(gitdir).getFile());
		assertEquals(gitdir, FileKey.lenient(parent).getFile());
		assertEquals(other, FileKey.lenient(other).getFile());
	}

	public void testBareFileKey() throws IOException {
		Repository bare = createBareRepository();
		File gitdir = bare.getDirectory();
		File parent = gitdir.getParentFile();
		String name = gitdir.getName();
		assertTrue(name.endsWith(".git"));
		name = name.substring(0, name.length() - 4);

		assertEquals(gitdir, FileKey.exact(gitdir).getFile());

		assertEquals(gitdir, FileKey.lenient(gitdir).getFile());
		assertEquals(gitdir, FileKey.lenient(new File(parent, name)).getFile());
	}

	public void testFileKeyOpenExisting() throws IOException {
		Repository r;

		r = new FileKey(db.getDirectory()).open(true);
		assertNotNull(r);
		assertEquals(db.getDirectory(), r.getDirectory());
		r.close();

		r = new FileKey(db.getDirectory()).open(false);
		assertNotNull(r);
		assertEquals(db.getDirectory(), r.getDirectory());
		r.close();
	}

	public void testFileKeyOpenNew() throws IOException {
		final Repository n = createBareRepository();
		final File gitdir = n.getDirectory();
		n.close();
		recursiveDelete(gitdir);
		assertFalse(gitdir.exists());

		try {
			new FileKey(gitdir).open(true);
			fail("incorrectly opened a non existant repository");
		} catch (RepositoryNotFoundException e) {
			assertEquals("repository not found: " + gitdir, e.getMessage());
		}

		final Repository o = new FileKey(gitdir).open(false);
		assertNotNull(o);
		assertEquals(gitdir, o.getDirectory());
		assertFalse(gitdir.exists());
	}

	public void testCacheRegisterOpen() throws Exception {
		final File dir = db.getDirectory();
		RepositoryCache.register(db);
		assertSame(db, RepositoryCache.open(FileKey.exact(dir)));

		assertEquals(".git", dir.getName());
		final File parent = dir.getParentFile();
		assertSame(db, RepositoryCache.open(FileKey.lenient(parent)));
	}

	public void testCacheOpen() throws Exception {
		final FileKey loc = FileKey.exact(db.getDirectory());
		final Repository d2 = RepositoryCache.open(loc);
		assertNotSame(db, d2);
		assertSame(d2, RepositoryCache.open(FileKey.exact(loc.getFile())));
		d2.close();
		d2.close();
	}
}