/*
 * 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
 *
 * All rights reserved.
 *
 * 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
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 * - 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
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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package org.eclipse.jgit.treewalk.filter;

import static org.eclipse.jgit.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.junit.Test;

public class NotTreeFilterTest extends RepositoryTestCase {
	@Test
	public void testWrap() throws Exception {
		final TreeWalk tw = new TreeWalk(db);
		final TreeFilter a = TreeFilter.ALL;
		final TreeFilter n = NotTreeFilter.create(a);
		assertNotNull(n);
		assertTrue(a.include(tw));
		assertFalse(n.include(tw));
	}

	@Test
	public void testNegateIsUnwrap() throws Exception {
		final TreeFilter a = PathFilter.create("a/b");
		final TreeFilter n = NotTreeFilter.create(a);
		assertSame(a, n.negate());
	}

	@Test
	public void testShouldBeRecursive_ALL() throws Exception {
		final TreeFilter a = TreeFilter.ALL;
		final TreeFilter n = NotTreeFilter.create(a);
		assertEquals(a.shouldBeRecursive(), n.shouldBeRecursive());
	}

	@Test
	public void testShouldBeRecursive_PathFilter() throws Exception {
		final TreeFilter a = PathFilter.create("a/b");
		assertTrue(a.shouldBeRecursive());
		final TreeFilter n = NotTreeFilter.create(a);
		assertTrue(n.shouldBeRecursive());
	}

	@Test
	public void testCloneIsDeepClone() throws Exception {
		final TreeFilter a = new AlwaysCloneTreeFilter();
		assertNotSame(a, a.clone());
		final TreeFilter n = NotTreeFilter.create(a);
		assertNotSame(n, n.clone());
	}

	@Test
	public void testCloneIsSparseWhenPossible() throws Exception {
		final TreeFilter a = TreeFilter.ALL;
		assertSame(a, a.clone());
		final TreeFilter n = NotTreeFilter.create(a);
		assertSame(n, n.clone());
	}
}
