1 files changed, 96 insertions, 0 deletions
diff --git a/Xamarin.Forms.Xaml.UnitTests/XamlC/FieldReferenceExtensionsTests.cs b/Xamarin.Forms.Xaml.UnitTests/XamlC/FieldReferenceExtensionsTests.cs
new file mode 100644
index 00000000..79144f98
--- /dev/null
+++ b/Xamarin.Forms.Xaml.UnitTests/XamlC/FieldReferenceExtensionsTests.cs
@@ -0,0 +1,96 @@
+using System;
+using System.Linq;
+
+using Mono.Cecil;
+
+using Xamarin.Forms.Build.Tasks;
+
+using NUnit.Framework;
+
+namespace Xamarin.Forms.Xaml.XamlcUnitTests
+{
+	[TestFixture]
+	public class FieldReferenceExtensionsTests
+	{
+		public class NonGenericClass {
+			public object Field;
+		}
+
+		public class GenericClass<T1,T2> {
+			public object NonGenericField;
+			public T1 GenericField1;
+			public T2 GenericField2;
+		}
+
+		public class Inheritor : GenericClass<string,double>
+		{
+		}
+
+		ModuleDefinition module;
+
+		[SetUp]
+		public void SetUp ()
+		{
+			module = ModuleDefinition.CreateModule ("foo", ModuleKind.Dll);
+		}
+
+		[Test]
+		public void ResolveGenericsOnNonGenericDoesNotThrow ()
+		{
+			var type = module.Import (typeof (NonGenericClass));
+			TypeReference declaringTypeReference;
+			FieldDefinition field = type.GetField (fd => fd.Name == "Field", out declaringTypeReference);
+			Assert.DoesNotThrow (() => field.ResolveGenericParameters (declaringTypeReference));
+		}
+
+		[Test]
+		public void NonGenericFieldOnGenericType ()
+		{
+			var type = module.Import (typeof (Inheritor));
+			TypeReference declaringTypeReference;
+			FieldDefinition field = type.GetField (fd => fd.Name == "NonGenericField", out declaringTypeReference);
+			Assert.AreEqual ("NonGenericField", field.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2", field.DeclaringType.FullName);
+			Assert.False (field.DeclaringType.IsGenericInstance);
+			var genericField = field.ResolveGenericParameters (declaringTypeReference);
+			Assert.AreEqual ("NonGenericField", genericField.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2<System.String,System.Double>", genericField.DeclaringType.FullName);
+			Assert.True (genericField.DeclaringType.IsGenericInstance);
+		}
+
+		[Test]
+		public void GenericFieldOnGenericType ()
+		{
+			var type = module.Import (typeof (Inheritor));
+			TypeReference declaringTypeReference;
+
+			FieldDefinition field1 = type.GetField (fd => fd.Name == "GenericField1", out declaringTypeReference);
+			Assert.AreEqual ("GenericField1", field1.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2", field1.DeclaringType.FullName);
+			Assert.False (field1.DeclaringType.IsGenericInstance);
+			Assert.True (field1.FieldType.IsGenericParameter);
+			Assert.AreEqual ("T1", field1.FieldType.FullName);
+
+			var genericField1 = field1.ResolveGenericParameters (declaringTypeReference);
+			Assert.AreEqual ("GenericField1", genericField1.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2<System.String,System.Double>", genericField1.DeclaringType.FullName);
+			Assert.True (genericField1.DeclaringType.IsGenericInstance);
+			Assert.False (genericField1.FieldType.IsGenericParameter);
+			Assert.AreEqual ("System.String", genericField1.FieldType.FullName);
+
+			FieldDefinition field2 = type.GetField (fd => fd.Name == "GenericField2", out declaringTypeReference);
+			Assert.AreEqual ("GenericField2", field2.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2", field2.DeclaringType.FullName);
+			Assert.False (field2.DeclaringType.IsGenericInstance);
+			Assert.True (field2.FieldType.IsGenericParameter);
+			Assert.AreEqual ("T2", field2.FieldType.FullName);
+
+			var genericField2 = field2.ResolveGenericParameters (declaringTypeReference);
+			Assert.AreEqual ("GenericField2", genericField2.Name);
+			Assert.AreEqual ("Xamarin.Forms.Xaml.XamlcUnitTests.FieldReferenceExtensionsTests/GenericClass`2<System.String,System.Double>", genericField2.DeclaringType.FullName);
+			Assert.True (genericField2.DeclaringType.IsGenericInstance);
+			Assert.False (genericField2.FieldType.IsGenericParameter);
+			Assert.AreEqual ("System.Double", genericField2.FieldType.FullName);
+		}
+	}
+}
+\ No newline at end of file