2 // ExpressionTest_MemberInit.cs
5 // Jb Evain (jbevain@novell.com)
7 // (C) 2008 Novell, Inc. (http://www.novell.com)
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14 // permit persons to whom the Software is furnished to do so, subject to
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30 using System.Collections.Generic;
31 using System.Reflection;
33 using System.Linq.Expressions;
35 using NUnit.Framework;
37 namespace MonoTests.System.Linq.Expressions {
40 public class ExpressionTest_MemberInit {
52 [ExpectedException (typeof (ArgumentNullException))]
53 public void NullExpression ()
55 Expression.MemberInit (null, new MemberBinding [0]);
59 [ExpectedException (typeof (ArgumentNullException))]
60 public void NullBindings ()
62 Expression.MemberInit (
63 Expression.New (typeof (Foo)),
68 [ExpectedException (typeof (ArgumentException))]
69 public void MemberNotAssignableToNewType ()
71 Expression.MemberInit (
72 Expression.New (typeof (Foo)),
73 new MemberBinding [] { Expression.Bind (typeof (Gazonk).GetField ("Tzap"), "tzap".ToConstant ()) });
77 public void InitFields ()
79 var m = Expression.MemberInit (
80 Expression.New (typeof (Foo)),
81 new MemberBinding [] {
82 Expression.Bind (typeof (Foo).GetField ("Bar"), "bar".ToConstant ()),
83 Expression.Bind (typeof (Foo).GetField ("Baz"), "baz".ToConstant ()) });
85 Assert.AreEqual (typeof (Foo), m.Type);
86 Assert.AreEqual (ExpressionType.MemberInit, m.NodeType);
87 Assert.AreEqual ("new Foo() {Bar = \"bar\", Baz = \"baz\"}", m.ToString ());
92 public string Bar { get; set; }
96 public void CompiledInit ()
98 var i = Expression.Lambda<Func<Thing>> (
99 Expression.MemberInit (
100 Expression.New (typeof (Thing)),
101 Expression.Bind (typeof (Thing).GetField ("Foo"), "foo".ToConstant ()),
102 Expression.Bind (typeof (Thing).GetProperty ("Bar"), "bar".ToConstant ()))).Compile ();
105 Assert.IsNotNull (thing);
106 Assert.AreEqual ("foo", thing.Foo);
107 Assert.AreEqual ("bar", thing.Bar);