Discounts unit tests (#406)

* Add some initial tests for discounts

Author: tdavisjr

SimplCommerce.sln

@@ -92,7 +92,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SimplCommerce.Module.Paymen
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SimplCommerce.Module.PaymentStripe", "src\Modules\SimplCommerce.Module.PaymentStripe\SimplCommerce.Module.PaymentStripe.csproj", "{91C58341-5EE8-4FF1-9FAB-BED234C3EBE6}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SimplCommerce.Module.StorageAzureBlob", "src\Modules\SimplCommerce.Module.StorageAzureBlob\SimplCommerce.Module.StorageAzureBlob.csproj", "{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SimplCommerce.Module.StorageAzureBlob", "src\Modules\SimplCommerce.Module.StorageAzureBlob\SimplCommerce.Module.StorageAzureBlob.csproj", "{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SimplCommerce.Module.Pricing.Tests", "test\SimplCommerce.Module.Pricing.Tests\SimplCommerce.Module.Pricing.Tests.csproj", "{BF0C0613-B127-4580-8C3E-492BCBC2744E}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -560,6 +562,18 @@ Global
 		{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6}.Release|x64.Build.0 = Release|Any CPU
 		{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6}.Release|x86.ActiveCfg = Release|Any CPU
 		{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6}.Release|x86.Build.0 = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|x64.Build.0 = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Debug|x86.Build.0 = Debug|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|x64.ActiveCfg = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|x64.Build.0 = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|x86.ActiveCfg = Release|Any CPU
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -605,6 +619,7 @@ Global
 		{A43132C2-BD56-4B39-8BDB-280A3230D8C9} = {7EFA2FA7-32DD-4047-B021-50E77A83D714}
 		{91C58341-5EE8-4FF1-9FAB-BED234C3EBE6} = {7EFA2FA7-32DD-4047-B021-50E77A83D714}
 		{21A7421A-DF8B-4E1C-96A8-1FF7FF8EA6F6} = {7EFA2FA7-32DD-4047-B021-50E77A83D714}
+		{BF0C0613-B127-4580-8C3E-492BCBC2744E} = {D9FD9ABA-AE5E-4427-AA6B-6285BE2E212D}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {B9D0D8F0-1AB9-44DD-839F-ED8CEE7DDB10}

src/SimplCommerce.Infrastructure/Models/EntityBaseWithTypedId.cs

@@ -2,6 +2,6 @@
 {
     public abstract class EntityBaseWithTypedId<TId> : ValidatableObject, IEntityWithTypedId<TId>
     {
-        public TId Id { get; protected set; }
+        public virtual TId Id { get; protected set; }
     }
 }