Added TranslateInstantiation tests

Author: Turnerj

tests/MongoFramework.Tests/Infrastructure/Querying/ExpressionTranslationTests.cs

@@ -240,5 +240,46 @@ public void TranslateConditional_ExternalConstants()
 			};
 			Assert.AreEqual(expected, result);
 		}
+
+		[TestMethod]
+		public void TranslateInstantiation_Anonymous()
+		{
+			var expression = GetTransform(e => new
+			{
+				e.Id,
+				MyNumber = e.SingleNumber
+			});
+			var result = ExpressionTranslation.TranslateInstantiation(expression);
+			var expected = new BsonDocument
+			{
+				{ "Id", "Id" },
+				{ "MyNumber", "SingleNumber" }
+			};
+			Assert.AreEqual(expected, result);
+		}
+
+		[TestMethod]
+		public void TranslateInstantiation_RealType()
+		{
+			var expression = GetTransform(e => new QueryTestModel
+			{
+				Id = e.Id,
+				SingleNumber = e.SingleNumber
+			});
+			var result = ExpressionTranslation.TranslateInstantiation(expression);
+			var expected = new BsonDocument
+			{
+				{ "Id", "Id" },
+				{ "SingleNumber", "SingleNumber" }
+			};
+			Assert.AreEqual(expected, result);
+		}
+
+		[TestMethod, ExpectedException(typeof(ArgumentException))]
+		public void TranslateInstantiation_InvalidExpression()
+		{
+			var expression = GetTransform(e => e.SingleNumber);
+			ExpressionTranslation.TranslateInstantiation(expression);
+		}
 	}
 }

tests/MongoFramework.Tests/Infrastructure/Querying/QueryTestBase.cs

@@ -39,5 +39,10 @@ protected static Expression GetConditional(Expression<Func<QueryTestModel, bool>
 		{
 			return ExpressionTranslation.UnwrapLambda(expression);
 		}
+
+		protected static Expression GetTransform<TResult>(Expression<Func<QueryTestModel, TResult>> expression)
+		{
+			return ExpressionTranslation.UnwrapLambda(expression);
+		}
 	}
 }