aboutsummaryrefslogtreecommitdiffhomepage
path: root/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs
blob: f0c8d3bcc6e3d194b9a3fac124ae507773501d56 (plain)
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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2015 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion
using NUnit.Framework;
using System;
using System.Collections.Generic;
using System.Reflection;

namespace Google.Protobuf.Compatibility
{
    public class TypeExtensionsTest
    {
        public class DerivedList : List<string> { }
        public string PublicProperty { get; set; }
        private string PrivateProperty { get; set; }

        public void PublicMethod()
        {
        }

        private void PrivateMethod()
        {
        }

        [Test]
        [TestCase(typeof(int), true)]
        [TestCase(typeof(int?), true)]
        [TestCase(typeof(Nullable<>), true)]
        [TestCase(typeof(WireFormat.WireType), true)]
        [TestCase(typeof(string), false)]
        [TestCase(typeof(object), false)]
        [TestCase(typeof(Enum), false)]
        [TestCase(typeof(ValueType), false)]
        [TestCase(typeof(TypeExtensionsTest), false)]
        [TestCase(typeof(Action), false)]
        [TestCase(typeof(Action<>), false)]
        [TestCase(typeof(IDisposable), false)]
        public void IsValueType(Type type, bool expected)
        {
            Assert.AreEqual(expected, TypeExtensions.IsValueType(type));
        }

        [Test]
        [TestCase(typeof(object), typeof(string), true)]
        [TestCase(typeof(object), typeof(int), true)]
        [TestCase(typeof(string), typeof(string), true)]
        [TestCase(typeof(string), typeof(object), false)]
        [TestCase(typeof(string), typeof(int), false)]
        [TestCase(typeof(int), typeof(int), true)]
        [TestCase(typeof(ValueType), typeof(int), true)]
        [TestCase(typeof(long), typeof(int), false)] // 
        public void IsAssignableFrom(Type target, Type argument, bool expected)
        {
            Assert.AreEqual(expected, TypeExtensions.IsAssignableFrom(target, argument));
        }

        [Test]
        [TestCase(typeof(DerivedList), "Count")] // Go up the type hierarchy
        [TestCase(typeof(List<string>), "Count")]
        [TestCase(typeof(List<>), "Count")]
        [TestCase(typeof(TypeExtensionsTest), "PublicProperty")]
        public void GetProperty_Success(Type type, string name)
        {
            var property = TypeExtensions.GetProperty(type, name);
            Assert.IsNotNull(property);
            Assert.AreEqual(name, property.Name);
        }

        [Test]
        [TestCase(typeof(TypeExtensionsTest), "PrivateProperty")]
        [TestCase(typeof(TypeExtensionsTest), "Garbage")]
        public void GetProperty_NoSuchProperty(Type type, string name)
        {
            var property = TypeExtensions.GetProperty(type, name);
            Assert.IsNull(property);
        }

        [Test]
        [TestCase(typeof(DerivedList), "RemoveAt")] // Go up the type hierarchy
        [TestCase(typeof(List<>), "RemoveAt")]
        [TestCase(typeof(TypeExtensionsTest), "PublicMethod")]
        public void GetMethod_Success(Type type, string name)
        {
            var method = TypeExtensions.GetMethod(type, name);
            Assert.IsNotNull(method);
            Assert.AreEqual(name, method.Name);
        }

        [Test]
        [TestCase(typeof(TypeExtensionsTest), "PrivateMethod")]
        [TestCase(typeof(TypeExtensionsTest), "GarbageMethod")]
        public void GetMethod_NoSuchMethod(Type type, string name)
        {
            var method = TypeExtensions.GetMethod(type, name);
            Assert.IsNull(method);
        }

        [Test]
        [TestCase(typeof(List<string>), "IndexOf")]
        public void GetMethod_Ambiguous(Type type, string name)
        {
            Assert.Throws<AmbiguousMatchException>(() => TypeExtensions.GetMethod(type, name));
        }
    }
}