/*
 * Copyright (C) 2008, 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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package org.eclipse.jgit.dircache;

import java.util.Collections;

import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.RepositoryTestCase;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

public class DirCacheBuilderIteratorTest extends RepositoryTestCase {
	public void testPathFilterGroup_DoesNotSkipTail() throws Exception {
		final DirCache dc = DirCache.read(db);

		final FileMode mode = FileMode.REGULAR_FILE;
		final String[] paths = { "a.", "a/b", "a/c", "a/d", "a0b" };
		final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
		for (int i = 0; i < paths.length; i++) {
			ents[i] = new DirCacheEntry(paths[i]);
			ents[i].setFileMode(mode);
		}
		{
			final DirCacheBuilder b = dc.builder();
			for (int i = 0; i < ents.length; i++)
				b.add(ents[i]);
			b.finish();
		}

		final int expIdx = 2;
		final DirCacheBuilder b = dc.builder();
		final TreeWalk tw = new TreeWalk(db);
		tw.reset();
		tw.addTree(new DirCacheBuildIterator(b));
		tw.setRecursive(true);
		tw.setFilter(PathFilterGroup.createFromStrings(Collections
				.singleton(paths[expIdx])));

		assertTrue("found " + paths[expIdx], tw.next());
		final DirCacheIterator c = tw.getTree(0, DirCacheIterator.class);
		assertNotNull(c);
		assertEquals(expIdx, c.ptr);
		assertSame(ents[expIdx], c.getDirCacheEntry());
		assertEquals(paths[expIdx], tw.getPathString());
		assertEquals(mode.getBits(), tw.getRawMode(0));
		assertSame(mode, tw.getFileMode(0));
		b.add(c.getDirCacheEntry());

		assertFalse("no more entries", tw.next());

		b.finish();
		assertEquals(ents.length, dc.getEntryCount());
		for (int i = 0; i < ents.length; i++)
			assertSame(ents[i], dc.getEntry(i));
	}
}