(GH-14) Adding tests

- To cover the functionality of the get_domain_from_host method

src/chocolatey.package.validator.tests/chocolatey.package.validator.tests.csproj

@@ -78,6 +78,7 @@
     <Compile Include="..\SolutionVersion.cs">
       <Link>Properties\SolutionVersion.cs</Link>
     </Compile>
+    <Compile Include="infrastructure.app\IconUrlNotSameDomainAsProjectUrlDomainorRawGitGuidelineSpecs.cs" />
     <Compile Include="infrastructure\events\context\FakeMessage.cs" />
     <Compile Include="infrastructure\events\context\FakeSubscriber.cs" />
     <Compile Include="infrastructure\events\EventSubscriptionManagerSpecs.cs" />

src/chocolatey.package.validator.tests/infrastructure.app/IconUrlNotSameDomainAsProjectUrlDomainorRawGitGuidelineSpecs.cs

@@ -0,0 +1,33 @@
+namespace chocolatey.package.validator.tests.infrastructure.app
+{
+    using chocolatey.package.validator.infrastructure.app.rules;
+    using Should;
+
+    public abstract class IconUrlNotSameDomainAsProjectUrlDomainorRawGitGuidelineSpecsBase : TinySpec
+    {
+        protected IconUrlNotSameDomainAsProjectUrlDomainOrRawGitGuideline iconGuideline;
+
+        public override void Context()
+        {
+            iconGuideline = new IconUrlNotSameDomainAsProjectUrlDomainOrRawGitGuideline();
+        }
+    }
+
+    public class when_extracting_domain_from_host : IconUrlNotSameDomainAsProjectUrlDomainorRawGitGuidelineSpecsBase
+    {
+        private string result;
+
+        public override void Because()
+        {
+            result = iconGuideline.get_domain_from_host("www.test.com");
+        }
+
+        [Fact]
+        public void should_return_domain()
+        {
+            Context();
+
+            result.ShouldEqual("test.com");
+        }
+    }
+}

src/chocolatey.package.validator/infrastructure.app/rules/IconUrlNotSameDomainAsProjectUrlDomainOrRawGitGuideline.cs

@@ -23,6 +23,14 @@ public class IconUrlNotSameDomainAsProjectUrlDomainOrRawGitGuideline : BasePacka
     {
         public override string ValidationFailureMessage { get { return "The package IconUrl should ideally come from the same domain name as the Project Url, or hosted on the RawGit CDN.  **NOTE:** For further information on how to setup your icon with a RawGit CDN URL, please visit this [article](https://github.com/chocolatey/choco/wiki/CreatePackages#package-icon-guidelines)."; } }
 
+        public string get_domain_from_host(string host)
+        {
+            // Use Regular Expression to extract the Domain Name, from the Uri Host
+            // Taken from example shown here http://stackoverflow.com/a/17091145/671491
+            var match = Regex.Match(host, "([^.]+\\.[^.]{1,3}(\\.[^.]{1,3})?)$");
+            return match.Groups[1].Success ? match.Groups[1].Value : string.Empty;
+        }
+
         protected override PackageValidationOutput is_valid(IPackage package)
         {
             if (package.IconUrl == null) return true;
@@ -37,13 +45,5 @@ protected override PackageValidationOutput is_valid(IPackage package)
 
             return iconUrlDomain == projectUrlDomain || iconUrlDomain == "rawgit.com";
         }
-
-        private string get_domain_from_host(string host)
-        {
-            // Use Regular Expression to extract the Domain Name, from the Uri Host
-            // Taken from example shown here http://stackoverflow.com/a/17091145/671491
-            var match = Regex.Match(host, "([^.]+\\.[^.]{1,3}(\\.[^.]{1,3})?)$");
-            return match.Groups[1].Success ? match.Groups[1].Value : string.Empty;
-        }
     }
 }