mono/mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_PropertyOrField.cs

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// without limitation the rights to use, copy, modify, merge, publish,
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//
// Authors:
//		Federico Di Gregorio <[email protected]>

using System;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;
using NUnit.Framework;

namespace MonoTests.System.Linq.Expressions
{
	[TestFixture]
	public class ExpressionTest_PropertyOrField
	{
		[Test]
		[ExpectedException (typeof (ArgumentNullException))]
		public void Arg1Null ()
		{
			Expression.PropertyOrField (null, "NoPropertyOrField");
		}

		[Test]
		[ExpectedException (typeof (ArgumentNullException))]
		public void Arg2Null ()
		{
			Expression.PropertyOrField (Expression.Constant (new MemberClass()), null);
		}

		[Test]
		[ExpectedException (typeof (ArgumentException))]
		public void NoPropertyOrField ()
		{
			Expression.PropertyOrField (Expression.Constant (new MemberClass()), "NoPropertyOrField");
		}

		[Test]
		public void InstanceProperty ()
		{
			MemberExpression expr = Expression.PropertyOrField (Expression.Constant (new MemberClass()), "TestProperty1");
			Assert.AreEqual (ExpressionType.MemberAccess, expr.NodeType, "PropertyOrField#01");
			Assert.AreEqual (typeof (int), expr.Type, "PropertyOrField#02");
			Assert.AreEqual ("value(MonoTests.System.Linq.Expressions.MemberClass).TestProperty1", expr.ToString(), "PropertyOrField#04");
		}
	}
}