/*
 * 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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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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package org.eclipse.jgit.treewalk.filter;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

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

public class TreeFilterTest extends RepositoryTestCase {
	@Test
	public void testALL_IncludesAnything() throws Exception {
		try (final TreeWalk tw = new TreeWalk(db)) {
			tw.addTree(new EmptyTreeIterator());
			assertTrue(TreeFilter.ALL.include(tw));
		}
	}

	@Test
	public void testALL_ShouldNotBeRecursive() throws Exception {
		assertFalse(TreeFilter.ALL.shouldBeRecursive());
	}

	@Test
	public void testALL_IdentityClone() throws Exception {
		assertSame(TreeFilter.ALL, TreeFilter.ALL.clone());
	}

	@Test
	public void testNotALL_IncludesNothing() throws Exception {
		try (final TreeWalk tw = new TreeWalk(db)) {
			tw.addTree(new EmptyTreeIterator());
			assertFalse(TreeFilter.ALL.negate().include(tw));
		}
	}

	@Test
	public void testANY_DIFF_IncludesSingleTreeCase() throws Exception {
		try (final TreeWalk tw = new TreeWalk(db)) {
			tw.addTree(new EmptyTreeIterator());
			assertTrue(TreeFilter.ANY_DIFF.include(tw));
		}
	}

	@Test
	public void testANY_DIFF_ShouldNotBeRecursive() throws Exception {
		assertFalse(TreeFilter.ANY_DIFF.shouldBeRecursive());
	}

	@Test
	public void testANY_DIFF_IdentityClone() throws Exception {
		assertSame(TreeFilter.ANY_DIFF, TreeFilter.ANY_DIFF.clone());
	}
}