add MemberInit tests

svn path=/trunk/mcs/; revision=96192

mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_MemberInit.cs

@@ -0,0 +1,90 @@
+//
+// ExpressionTest_MemberInit.cs
+//
+// Author:
+//   Jb Evain ([email protected])
+//
+// (C) 2008 Novell, Inc. (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Linq;
+using System.Linq.Expressions;
+
+using NUnit.Framework;
+
+namespace MonoTests.System.Linq.Expressions {
+
+	[TestFixture]
+	public class ExpressionTest_MemberInit {
+
+		public class Foo {
+			public string Bar;
+			public string Baz;
+		}
+
+		public class Gazonk {
+			public string Tzap;
+		}
+
+		[Test]
+		[ExpectedException (typeof (ArgumentNullException))]
+		public void NullExpression ()
+		{
+			Expression.MemberInit (null, new MemberBinding [0]);
+		}
+
+		[Test]
+		[ExpectedException (typeof (ArgumentNullException))]
+		public void NullBindings ()
+		{
+			Expression.MemberInit (
+				Expression.New (typeof (Foo)),
+				null);
+		}
+
+		[Test]
+		[ExpectedException (typeof (ArgumentException))]
+		public void MemberNotAssignableToNewType ()
+		{
+			Expression.MemberInit (
+				Expression.New (typeof (Foo)),
+				new MemberBinding [] { Expression.Bind (typeof (Gazonk).GetField ("Tzap"), "tzap".ToConstant ()) });
+		}
+
+		[Test]
+		public void InitFields ()
+		{
+			var m = Expression.MemberInit (
+				Expression.New (typeof (Foo)),
+				new MemberBinding [] {
+					Expression.Bind (typeof (Foo).GetField ("Bar"), "bar".ToConstant ()),
+					Expression.Bind (typeof (Foo).GetField ("Baz"), "baz".ToConstant ()) });
+
+			Assert.AreEqual (typeof (Foo), m.Type);
+			Assert.AreEqual (ExpressionType.MemberInit, m.NodeType);
+			Assert.AreEqual ("new Foo() {Bar = \"bar\", Baz = \"baz\"}", m.ToString ());
+		}
+	}
+}