1 #region Copyright notice and license 2 // Protocol Buffers - Google's data interchange format 3 // Copyright 2015 Google Inc. All rights reserved. 4 // https://developers.google.com/protocol-buffers/ 5 // 6 // Redistribution and use in source and binary forms, with or without 7 // modification, are permitted provided that the following conditions are 8 // met: 9 // 10 // * Redistributions of source code must retain the above copyright 11 // notice, this list of conditions and the following disclaimer. 12 // * Redistributions in binary form must reproduce the above 13 // copyright notice, this list of conditions and the following disclaimer 14 // in the documentation and/or other materials provided with the 15 // distribution. 16 // * Neither the name of Google Inc. nor the names of its 17 // contributors may be used to endorse or promote products derived from 18 // this software without specific prior written permission. 19 // 20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 #endregion 32 using NUnit.Framework; 33 using System; 34 using System.Collections.Generic; 35 using System.Reflection; 36 37 namespace Google.Protobuf.Compatibility 38 { 39 public class TypeExtensionsTest 40 { 41 public class DerivedList : List<string> { } 42 public string PublicProperty { get; set; } 43 private string PrivateProperty { get; set; } 44 PublicMethod()45 public void PublicMethod() 46 { 47 } 48 PrivateMethod()49 private void PrivateMethod() 50 { 51 } 52 53 [Test] 54 [TestCase(typeof(int), true)] 55 [TestCase(typeof(int?), true)] 56 [TestCase(typeof(Nullable<>), true)] 57 [TestCase(typeof(WireFormat.WireType), true)] 58 [TestCase(typeof(string), false)] 59 [TestCase(typeof(object), false)] 60 [TestCase(typeof(Enum), false)] 61 [TestCase(typeof(ValueType), false)] 62 [TestCase(typeof(TypeExtensionsTest), false)] 63 [TestCase(typeof(Action), false)] 64 [TestCase(typeof(Action<>), false)] 65 [TestCase(typeof(IDisposable), false)] IsValueType(Type type, bool expected)66 public void IsValueType(Type type, bool expected) 67 { 68 Assert.AreEqual(expected, TypeExtensions.IsValueType(type)); 69 } 70 71 [Test] 72 [TestCase(typeof(object), typeof(string), true)] 73 [TestCase(typeof(object), typeof(int), true)] 74 [TestCase(typeof(string), typeof(string), true)] 75 [TestCase(typeof(string), typeof(object), false)] 76 [TestCase(typeof(string), typeof(int), false)] 77 [TestCase(typeof(int), typeof(int), true)] 78 [TestCase(typeof(ValueType), typeof(int), true)] 79 [TestCase(typeof(long), typeof(int), false)] // IsAssignableFrom(Type target, Type argument, bool expected)80 public void IsAssignableFrom(Type target, Type argument, bool expected) 81 { 82 Assert.AreEqual(expected, TypeExtensions.IsAssignableFrom(target, argument)); 83 } 84 85 [Test] 86 [TestCase(typeof(DerivedList), "Count")] // Go up the type hierarchy 87 [TestCase(typeof(List<string>), "Count")] 88 [TestCase(typeof(List<>), "Count")] 89 [TestCase(typeof(TypeExtensionsTest), "PublicProperty")] GetProperty_Success(Type type, string name)90 public void GetProperty_Success(Type type, string name) 91 { 92 var property = TypeExtensions.GetProperty(type, name); 93 Assert.IsNotNull(property); 94 Assert.AreEqual(name, property.Name); 95 } 96 97 [Test] 98 [TestCase(typeof(TypeExtensionsTest), "PrivateProperty")] 99 [TestCase(typeof(TypeExtensionsTest), "Garbage")] GetProperty_NoSuchProperty(Type type, string name)100 public void GetProperty_NoSuchProperty(Type type, string name) 101 { 102 var property = TypeExtensions.GetProperty(type, name); 103 Assert.IsNull(property); 104 } 105 106 [Test] 107 [TestCase(typeof(DerivedList), "RemoveAt")] // Go up the type hierarchy 108 [TestCase(typeof(List<>), "RemoveAt")] 109 [TestCase(typeof(TypeExtensionsTest), "PublicMethod")] GetMethod_Success(Type type, string name)110 public void GetMethod_Success(Type type, string name) 111 { 112 var method = TypeExtensions.GetMethod(type, name); 113 Assert.IsNotNull(method); 114 Assert.AreEqual(name, method.Name); 115 } 116 117 [Test] 118 [TestCase(typeof(TypeExtensionsTest), "PrivateMethod")] 119 [TestCase(typeof(TypeExtensionsTest), "GarbageMethod")] GetMethod_NoSuchMethod(Type type, string name)120 public void GetMethod_NoSuchMethod(Type type, string name) 121 { 122 var method = TypeExtensions.GetMethod(type, name); 123 Assert.IsNull(method); 124 } 125 126 [Test] 127 [TestCase(typeof(List<string>), "IndexOf")] GetMethod_Ambiguous(Type type, string name)128 public void GetMethod_Ambiguous(Type type, string name) 129 { 130 Assert.Throws<AmbiguousMatchException>(() => TypeExtensions.GetMethod(type, name)); 131 } 132 } 133 } 134