// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
using Roslyn.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.UnitTests.UtilityTest
{
    public class WordSimilarityCheckerTests
    {
        [Fact]
        public void TestCloseMatch()
        {
            Assert.False(WordSimilarityChecker.AreSimilar("variabledeclaratorsyntax", "variabledeclaratorsyntaxextensions"));
            Assert.True(WordSimilarityChecker.AreSimilar("variabledeclaratorsyntax", "variabledeclaratorsyntaxextensions", substringsAreSimilar: true));
 
            Assert.False(WordSimilarityChecker.AreSimilar("expressionsyntax", "expressionsyntaxextensions"));
            Assert.True(WordSimilarityChecker.AreSimilar("expressionsyntax", "expressionsyntaxextensions", substringsAreSimilar: true));
 
            Assert.False(WordSimilarityChecker.AreSimilar("expressionsyntax", "expressionsyntaxgeneratorvisitor"));
            Assert.True(WordSimilarityChecker.AreSimilar("expressionsyntax", "expressionsyntaxgeneratorvisitor", substringsAreSimilar: true));
        }
 
        [Fact]
        public void TestNotCloseMatch()
        {
            Assert.False(WordSimilarityChecker.AreSimilar("propertyblocksyntax", "ipropertysymbol"));
            Assert.False(WordSimilarityChecker.AreSimilar("propertyblocksyntax", "ipropertysymbolextensions"));
            Assert.False(WordSimilarityChecker.AreSimilar("propertyblocksyntax", "typeblocksyntaxextensions"));
 
            Assert.False(WordSimilarityChecker.AreSimilar("fielddeclarationsyntax", "declarationinfo"));
            Assert.False(WordSimilarityChecker.AreSimilar("fielddeclarationsyntax", "declarationcomputer"));
            Assert.False(WordSimilarityChecker.AreSimilar("fielddeclarationsyntax", "filelinepositionspan"));
 
            Assert.False(WordSimilarityChecker.AreSimilar("variabledeclaratorsyntax", "visualbasicdeclarationcomputer"));
            Assert.False(WordSimilarityChecker.AreSimilar("variabledeclaratorsyntax", "ilineseparatorservice"));
 
            Assert.False(WordSimilarityChecker.AreSimilar("expressionsyntax", "awaitexpressioninfo"));
        }
    }
}