// Copyright (c) 2007 Omer Rauchwerger (a.k.a rauchy) (omer@rauchy.net)
// All rights reserved.
//
// This file is part of Regionerate.
// 
// This program is free software; you can redistribute it and/or modify it 
// under the terms of the GNU General Public License as published by 
// the Free Software Foundation; either version 3 of the License, 
// or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using NUnit.Framework;
using Rauchy.Regionerate.Shared.Components.Rendering;

namespace Rauchy.Regionerate.Shared.Components.Tests
{
    /// <summary>
    /// Tests the <see cref="Prefix"/> class.
    /// </summary>
    [ TestFixture ]
    public class PrefixTests
    {
        #region Data Members (1) 

        private const string SampleText = "This is a sample text.";

        #endregion Data Members 

        #region Tests (5) 

        [ Test ]
        public void DoesNotRecognizeWrongEmbeddedValue()
        {
            bool isEmbedded = IsEmbedded( "[rgn]", "* My Region" );
            Assert.IsFalse( isEmbedded );
        }

        [ Test ]
        public void EmbedsAsteriskPrefix()
        {
            EmbedsPrefix( "*" );
        }

        [ Test ]
        public void EmbedsRgnPrefix()
        {
            EmbedsPrefix( "[rgn]" );
        }

        [ Test ]
        public void RecognizesEmbeddedAsteriskPrefix()
        {
            RecognizesEmbeddedPrefix( "*" );
        }

        [ Test ]
        public void RecognizesEmbeddedRgnPrefix()
        {
            RecognizesEmbeddedPrefix( "[rgn]" );
        }

        #endregion Tests 

        #region Helper Methods (4) 

        private static string EmbedPrefix( string prefixValue, string text )
        {
            Prefix prefix = new Prefix( prefixValue );
            string symbolizedText = prefix.Embed( text );
            return symbolizedText;
        }

        private static void EmbedsPrefix( string prefixValue )
        {
            string symbolizedText = EmbedPrefix( prefixValue, SampleText );
            string expected = string.Format( "{0} {1}", prefixValue, SampleText );
            Assert.AreEqual( expected, symbolizedText );
        }

        private static bool IsEmbedded( string prefixValue, string text )
        {
            Prefix prefix = new Prefix( prefixValue );
            bool isEmbedded = prefix.IsEmbeddedIn( text );
            return isEmbedded;
        }

        public void RecognizesEmbeddedPrefix( string prefixValue )
        {
            string text = "#region " + prefixValue + " " + SampleText;
            bool isEmbedded = IsEmbedded( prefixValue, text );
            Assert.IsTrue( isEmbedded );
        }

        #endregion Helper Methods 
    }
}