2 // ExpressionTest_NewArrayBounds.cs
5 // Jb Evain (jbevain@novell.com)
7 // (C) 2008 Novell, Inc. (http://www.novell.com)
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30 using System.Reflection;
32 using System.Linq.Expressions;
34 using NUnit.Framework;
36 namespace MonoTests.System.Linq.Expressions {
39 public class ExpressionTest_NewArrayBounds {
42 [ExpectedException (typeof (ArgumentNullException))]
43 public void ArgTypeNull ()
45 Expression.NewArrayBounds (null, new Expression [0]);
49 [ExpectedException (typeof (ArgumentNullException))]
50 public void ArgBoundsNull ()
52 Expression.NewArrayBounds (typeof (int), null);
56 [ExpectedException (typeof (ArgumentException))]
57 public void ArgBoundsContainsExpressionTypeNotInteger ()
59 Expression.NewArrayBounds (typeof (int), 1.ToConstant (), "2".ToConstant ());
63 [Category ("NotDotNet")]
64 [ExpectedException (typeof (ArgumentException))]
65 public void NewVoid ()
67 Expression.NewArrayBounds (typeof (void), 1.ToConstant ());
71 public void TestArrayBounds ()
73 var ab = Expression.NewArrayBounds (typeof (int), 1.ToConstant (), 2.ToConstant ());
74 Assert.AreEqual (typeof (int [,]), ab.Type);
75 Assert.AreEqual (2, ab.Expressions.Count);
76 Assert.AreEqual ("new System.Int32[,](1, 2)", ab.ToString ());
79 static Func<object> CreateNewArrayFactory<T> (params int [] bounds)
81 return Expression.Lambda<Func<object>> (
82 Expression.NewArrayBounds (
84 (from bound in bounds select bound.ToConstant ()).ToArray ())).Compile ();
88 public void TestArrayAssignability ()
90 Expression.Lambda<Func<int []>> (
91 Expression.NewArrayBounds (
97 public void CompileNewArraySingleDimensional ()
99 var factory = CreateNewArrayFactory<int> (3);
101 var array = (int []) factory ();
102 var type = array.GetType ();
104 Assert.IsNotNull (array);
105 Assert.AreEqual (3, array.Length);
106 Assert.IsTrue (type.IsArray);
107 Assert.AreEqual (1, type.GetArrayRank ());
111 public void CompileNewArrayMultiDimensional ()
113 var factory = CreateNewArrayFactory<int> (3, 3);
115 var array = (int [,]) factory ();
116 var type = array.GetType ();
118 Assert.IsNotNull (array);
119 Assert.IsTrue (type.IsArray);
120 Assert.AreEqual (2, type.GetArrayRank ());
121 Assert.AreEqual (9, array.Length);