1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
//
// ExpressionTest_UnaryPlus.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.Reflection;
using System.Linq;
using System.Linq.Expressions;
using NUnit.Framework;
namespace MonoTests.System.Linq.Expressions
{
[TestFixture]
[Category("SRE")]
public class ExpressionTest_UnaryPlus
{
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Arg1Null ()
{
Expression.UnaryPlus (null);
}
[Test]
[ExpectedException (typeof (ArgumentException))]
public void MethodArgNotStatic ()
{
Expression.UnaryPlus (Expression.Constant (new object ()), typeof (OpClass).GetMethod ("WrongUnaryNotStatic"));
}
[Test]
[ExpectedException (typeof (ArgumentException))]
public void MethodArgParameterCount ()
{
Expression.UnaryPlus (Expression.Constant (new object ()), typeof (OpClass).GetMethod ("WrongUnaryParameterCount"));
}
[Test]
[ExpectedException (typeof (ArgumentException))]
public void MethodArgReturnsVoid ()
{
Expression.UnaryPlus (Expression.Constant (new object ()), typeof (OpClass).GetMethod ("WrongUnaryReturnVoid"));
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void PlusBool ()
{
Expression.UnaryPlus (true.ToConstant ());
}
[Test]
public void Number ()
{
var up = Expression.UnaryPlus (1.ToConstant ());
Assert.AreEqual ("+1", up.ToString ());
}
[Test]
public void UserDefinedClass ()
{
var mi = typeof (OpClass).GetMethod ("op_UnaryPlus");
var expr = Expression.UnaryPlus (Expression.Constant (new OpClass ()));
Assert.AreEqual (ExpressionType.UnaryPlus, expr.NodeType);
Assert.AreEqual (typeof (OpClass), expr.Type);
Assert.AreEqual (mi, expr.Method);
Assert.AreEqual ("op_UnaryPlus", expr.Method.Name);
Assert.AreEqual ("+value(MonoTests.System.Linq.Expressions.OpClass)", expr.ToString ());
}
[Test]
public void PlusNullableInt32 ()
{
var n = Expression.UnaryPlus (Expression.Parameter (typeof (int?), ""));
Assert.AreEqual (typeof (int?), n.Type);
Assert.IsTrue (n.IsLifted);
Assert.IsTrue (n.IsLiftedToNull);
Assert.IsNull (n.Method);
}
[Test]
public void CompilePlusInt32 ()
{
var p = Expression.Parameter (typeof (int), "i");
var plus = Expression.Lambda<Func<int, int>> (Expression.UnaryPlus (p), p).Compile ();
Assert.AreEqual (-2, plus (-2));
Assert.AreEqual (0, plus (0));
Assert.AreEqual (3, plus (3));
}
}
}
|
