FirstCharToLower

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

@@ -0,0 +1,18 @@
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Common.Test.ExtensionTests.StringExtensionTests
+{
+    [TestFixture]
+    public class FirstCharcacterToLowerFixture
+    {
+        [TestCase("Hello", "hello")]
+        [TestCase("CamelCase", "camelCase")]
+        [TestCase("A Full Sentence", "a Full Sentence")]
+        public void should_lower_case_first_character(string input, string expected)
+        {
+            input.FirstCharToLower().Should().Be(expected);
+        }
+    }
+}

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

@@ -0,0 +1,18 @@
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Common.Test.ExtensionTests.StringExtensionTests
+{
+    [TestFixture]
+    public class FirstCharcacterToUpperFixture
+    {
+        [TestCase("hello", "Hello")]
+        [TestCase("camelCase", "CamelCase")]
+        [TestCase("a full sentence", "A full sentence")]
+        public void should_capitalize_first_character(string input, string expected)
+        {
+            input.FirstCharToUpper().Should().Be(expected);
+        }
+    }
+}

src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj

@@ -70,6 +70,8 @@
     <Compile Include="ExtensionTests\IEnumerableExtensionTests\ExceptByFixture.cs" />
     <Compile Include="ExtensionTests\IEnumerableExtensionTests\IntersectByFixture.cs" />
     <Compile Include="ExtensionTests\Int64ExtensionFixture.cs" />
+    <Compile Include="ExtensionTests\StringExtensionTests\FirstCharcacterToLowerFixture.cs" />
+    <Compile Include="ExtensionTests\StringExtensionTests\FirstCharcacterToUpperFixture.cs" />
     <Compile Include="ExtensionTests\UrlExtensionsFixture.cs" />
     <Compile Include="ExtensionTests\FuzzyContainsFixture.cs" />
     <Compile Include="HashUtilFixture.cs" />

src/NzbDrone.Common/Extensions/StringExtensions.cs

@@ -22,9 +22,14 @@ namespace NzbDrone.Common.Extensions
             return "[NULL]";
         }
 
+        public static string FirstCharToLower(this string input)
+        {
+            return input.First().ToString().ToLower() + input.Substring(1);
+        }
+
         public static string FirstCharToUpper(this string input)
         {
-            return input.First().ToString().ToUpper() + string.Join("", input.Skip(1));
+            return input.First().ToString().ToUpper() + input.Substring(1);
         }
 
         public static string Inject(this string format, params object[] formattingArgs)