Added test for turkish FirstCharToLower

src/NzbDrone.Common.Test/ExtensionTests/StringExtensionTests/FirstCharacterToLowerFixture.cs

@@ -1,4 +1,5 @@
-using FluentAssertions;
+using System.Globalization;
+using FluentAssertions;
 using NUnit.Framework;
 using NzbDrone.Common.Extensions;
 
@@ -16,5 +17,20 @@ namespace NzbDrone.Common.Test.ExtensionTests.StringExtensionTests
         {
             input.FirstCharToLower().Should().Be(expected);
         }
+
+        [Test]
+        public void should_lower_case_first_character_regardless_of_culture()
+        {
+            var current = CultureInfo.CurrentCulture;
+            CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("tr-TR");
+            try
+            {
+                "InfInite".FirstCharToLower().Should().Be("infInite");
+            }
+            finally
+            {
+                CultureInfo.CurrentCulture = current;
+            }
+        }
     }
 }