/* 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using System.Collections.Generic;

using NUnit.Framework;

using WordlistLoader = Lucene.Net.Analysis.WordlistLoader;
using LuceneTestCase = Lucene.Net.Util.LuceneTestCase;

namespace Lucene.Net.Index
{
	
    [TestFixture]
	public class TestWordlistLoader:LuceneTestCase
	{
		
		[Test]
		public virtual void  TestWordlistLoading()
		{
			System.String s = "ONE\n  two \nthree";
            List<string> wordSet1 = WordlistLoader.GetWordSet(new System.IO.StringReader(s));
			CheckSet(wordSet1);
            List<string> wordSet2 = WordlistLoader.GetWordSet(new System.IO.StringReader(s));
			CheckSet(wordSet2);
		}
		
		[Test]
		public virtual void  TestComments()
		{
			System.String s = "ONE\n  two \nthree\n#comment";
            List<string> wordSet1 = WordlistLoader.GetWordSet(new System.IO.StringReader(s), "#");
			CheckSet(wordSet1);
			Assert.IsFalse(wordSet1.Contains("#comment"));
			Assert.IsFalse(wordSet1.Contains("comment"));
		}


        private void CheckSet(List<string> wordset)
		{
			Assert.AreEqual(3, wordset.Count);
			Assert.IsTrue(wordset.Contains("ONE")); // case is not modified
			Assert.IsTrue(wordset.Contains("two")); // surrounding whitespace is removed
			Assert.IsTrue(wordset.Contains("three"));
			Assert.IsFalse(wordset.Contains("four"));
		}
	}
}