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//
// ExpressionTest_MemberInit.cs
//
// Author:
// Jb Evain (jbevain@novell.com)
//
// (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]
[Category("SRE")]
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 ());
}
public class Thing {
public string Foo;
public string Bar { get; set; }
}
[Test]
public void CompiledInit ()
{
var i = Expression.Lambda<Func<Thing>> (
Expression.MemberInit (
Expression.New (typeof (Thing)),
Expression.Bind (typeof (Thing).GetField ("Foo"), "foo".ToConstant ()),
Expression.Bind (typeof (Thing).GetProperty ("Bar"), "bar".ToConstant ()))).Compile ();
var thing = i ();
Assert.IsNotNull (thing);
Assert.AreEqual ("foo", thing.Foo);
Assert.AreEqual ("bar", thing.Bar);
}
}
}
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