Add unit test for named attribute argument.

ICSharpCode.NRefactory.Tests/TypeSystem/TypeSystemTests.TestCase.cs

@@ -44,6 +44,9 @@ namespace ICSharpCode.NRefactory.TypeSystem.TestCase
 	public class ParamsAttribute : Attribute
 	{
 		public ParamsAttribute(params object[] x) {}
+		
+		[Params(Property = new string[] { "a", "b" })]
+		public string[] Property { get; set; }
 	}
 	
 	[Double(1)]

ICSharpCode.NRefactory.Tests/TypeSystem/TypeSystemTests.cs

@@ -821,6 +821,23 @@ namespace ICSharpCode.NRefactory.TypeSystem
 			Assert.AreEqual("Test", rr.Input.ConstantValue);
 		}
 		
+		[Test]
+		public void ParamsAttribute_Property()
+		{
+			ITypeDefinition type = GetTypeDefinition(typeof(ParamsAttribute));
+			IProperty prop = type.Properties.Single(p => p.Name == "Property");
+			var attr = prop.Attributes.Single();
+			Assert.AreEqual(type, attr.AttributeType);
+			
+			var normalArguments = ((ArrayCreateResolveResult)attr.PositionalArguments.Single()).InitializerElements;
+			Assert.AreEqual(0, normalArguments.Count);
+			
+			var namedArg = attr.NamedArguments.Single();
+			Assert.AreEqual(prop, namedArg.Key);
+			var arrayElements = ((ArrayCreateResolveResult)namedArg.Value).InitializerElements;
+			Assert.AreEqual(2, arrayElements.Count);
+		}
+		
 		[Test]
 		public void DoubleAttribute_ImplicitNumericConversion()
 		{