mono-2.6.7-for-amiga /mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_Quote.cs

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MD5 Hash 39bf1ff69b2f914abb7f349d65e98c91 Estimated Cost $1,090 (why?)
Repository https://bitbucket.org/steenlund/mono-2.6.7-for-amiga View Raw File View Project SPDX
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// 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
//
// Authors:
//		Federico Di Gregorio <fog@initd.org>

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

namespace MonoTests.System.Linq.Expressions
{
	[TestFixture]
	public class ExpressionTest_Quote
	{
		[Test]
		[ExpectedException (typeof (ArgumentNullException))]
		public void Arg1Null ()
		{
			Expression.Quote (null);
		}

		[Test]
		public void Constant ()
		{
			UnaryExpression expr = Expression.Quote (Expression.Constant (1));
			Assert.AreEqual (ExpressionType.Quote, expr.NodeType, "Quote#01");
			Assert.AreEqual (typeof (ConstantExpression), expr.Type, "Quote#02");
			Assert.AreEqual ("1", expr.ToString(), "Quote#03");
		}

		[Test]
		public void CompiledQuote ()
		{
			var quote42 = Expression.Lambda<Func<Expression<Func<int>>>> (
				Expression.Quote (
					Expression.Lambda<Func<int>> (
						42.ToConstant ()))).Compile ();

			var get42 = quote42 ().Compile ();

			Assert.AreEqual (42, get42 ());
		}

		[Test]
		public void ParameterInQuotedExpression () // #550722
		{
			// Expression<Func<string, Expression<Func<string>>>> e = (string s) => () => s;

			var s = Expression.Parameter (typeof (string), "s");

			var lambda = Expression.Lambda<Func<string, Expression<Func<string>>>> (
				Expression.Quote (
					Expression.Lambda<Func<string>> (s, new ParameterExpression [0])),
				s);

			var fs = lambda.Compile () ("bingo").Compile ();

			Assert.AreEqual ("bingo", fs ());
		}
	}
}
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