419 lines
12 KiB
C#
419 lines
12 KiB
C#
//
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// System.Reflection.MethodBase Test Cases
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//
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// Authors:
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// Gert Driesen (drieseng@users.sourceforge.net)
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//
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// Copyright (C) 2008 Gert Driesen
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Reflection;
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using NUnit.Framework;
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namespace MonoTests.System.Reflection
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{
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public class Generic<T> {
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public void Foo () {
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}
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public void GenericFoo<K> () {
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}
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}
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public class AnotherGeneric<T> {
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public void Foo () {
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}
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}
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public class SimpleClass {
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public void GenericFoo<K> () {
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}
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}
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class MethodBaseOverloadTestDoesNotCauseCompilerError : MethodBase
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{
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public override MethodAttributes Attributes
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{
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get { throw new NotImplementedException (); }
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}
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public override MethodImplAttributes GetMethodImplementationFlags ()
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{
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throw new NotImplementedException ();
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}
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public override ParameterInfo[] GetParameters ()
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{
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throw new NotImplementedException ();
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}
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public override object Invoke (object obj, BindingFlags invokeAttr, Binder binder, object[] parameters, global::System.Globalization.CultureInfo culture)
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{
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throw new NotImplementedException ();
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}
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public override RuntimeMethodHandle MethodHandle
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{
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get { throw new NotImplementedException (); }
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}
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public override Type DeclaringType
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{
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get { throw new NotImplementedException (); }
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}
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public override object[] GetCustomAttributes (Type attributeType, bool inherit)
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{
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throw new NotImplementedException ();
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}
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public override object[] GetCustomAttributes (bool inherit)
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{
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throw new NotImplementedException ();
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}
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public override bool IsDefined (Type attributeType, bool inherit)
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{
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throw new NotImplementedException ();
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}
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public override MemberTypes MemberType
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{
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get { throw new NotImplementedException (); }
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}
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public override string Name
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{
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get { throw new NotImplementedException (); }
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}
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public override Type ReflectedType
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{
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get { throw new NotImplementedException (); }
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}
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}
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[TestFixture]
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public class MethodBaseTest
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{
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public static MethodInfo Where<T> (T a) {
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return (MethodInfo) MethodBase.GetCurrentMethod ();
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}
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public class Foo<K>
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{
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public static MethodInfo Where<T> (T a, K b) {
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return (MethodInfo) MethodBase.GetCurrentMethod ();
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}
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}
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[Test]
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public void GetCurrentMethodDropsAllGenericArguments ()
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{
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MethodInfo a = Where<int> (10);
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MethodInfo b = Foo<int>.Where <double> (10, 10);
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Assert.IsTrue (a.IsGenericMethodDefinition, "#1");
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Assert.IsTrue (b.IsGenericMethodDefinition, "#2");
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Assert.IsTrue (b.DeclaringType.IsGenericTypeDefinition, "#3");
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Assert.AreSame (a, typeof (MethodBaseTest).GetMethod ("Where"), "#4");
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Assert.AreSame (b, typeof (Foo<>).GetMethod ("Where"), "#5");
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}
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[Test] // GetMethodFromHandle (RuntimeMethodHandle)
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public void GetMethodFromHandle1_Handle_Generic ()
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{
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G<string> instance = new G<string> ();
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Type t = instance.GetType ();
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MethodBase mb1 = t.GetMethod ("M");
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RuntimeMethodHandle mh = mb1.MethodHandle;
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RuntimeTypeHandle th = t.TypeHandle;
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try {
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MethodBase.GetMethodFromHandle (mh);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Cannot resolve method Void M(System.__Canon)
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// because the declaring type of the method
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// handle MonoTests.System.Reflection.MethodBaseTest+G`1[T]
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// is generic. Explicitly provide the declaring type to
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// GetMethodFromHandle
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}
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}
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[Test] // GetMethodFromHandle (RuntimeMethodHandle)
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public void GetMethodFromHandle1_Handle_Zero ()
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{
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RuntimeMethodHandle mh = new RuntimeMethodHandle ();
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try {
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MethodBase.GetMethodFromHandle (mh);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Handle is not initialized
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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}
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}
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[Test]
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public void GetMethodFromHandle ()
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{
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Type t = typeof (object);
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RuntimeMethodHandle rmh = t.GetConstructor (Type.EmptyTypes).MethodHandle;
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MethodBase mb = MethodBase.GetMethodFromHandle (rmh);
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Assert.IsNotNull (mb, "#1");
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Assert.AreEqual (t, mb.DeclaringType, "#2");
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Assert.AreEqual (".ctor", mb.Name, "#3");
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ParameterInfo [] parameters = mb.GetParameters ();
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Assert.IsNotNull (parameters, "#4");
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Assert.AreEqual (0, parameters.Length, "#5");
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}
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[Test]
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public void GetMethodFromHandle_NonGenericType_DeclaringTypeZero ()
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{
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Type t = typeof (object);
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RuntimeMethodHandle rmh = t.GetConstructor (Type.EmptyTypes).MethodHandle;
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MethodBase mb = MethodBase.GetMethodFromHandle (rmh, new RuntimeTypeHandle ());
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Assert.IsNotNull (mb, "#1");
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Assert.AreEqual (t, mb.DeclaringType, "#2");
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Assert.AreEqual (".ctor", mb.Name, "#3");
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ParameterInfo [] parameters = mb.GetParameters ();
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Assert.IsNotNull (parameters, "#4");
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Assert.AreEqual (0, parameters.Length, "#5");
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}
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[Test] // GetMethodFromHandle (RuntimeMethodHandle, RuntimeTypeHandle)
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public void GetMethodFromHandle2_DeclaringType_Zero ()
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{
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RuntimeTypeHandle th = new RuntimeTypeHandle ();
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Type t = typeof (G<>);
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RuntimeMethodHandle mh = t.GetMethod ("M").MethodHandle;
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MethodBase mb = MethodBase.GetMethodFromHandle (mh, th);
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Assert.IsNotNull (mb, "#1");
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Assert.AreEqual (t, mb.DeclaringType, "#2");
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Assert.AreEqual ("M", mb.Name, "#3");
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ParameterInfo [] parameters = mb.GetParameters ();
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Assert.IsNotNull (parameters, "#4");
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Assert.AreEqual (1, parameters.Length, "#5");
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Assert.AreEqual (t.GetGenericArguments () [0] , parameters [0].ParameterType, "#6");
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}
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[Test] // GetMethodFromHandle (RuntimeMethodHandle, RuntimeTypeHandle)
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public void GetMethodFromHandle2_Handle_Generic ()
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{
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G<string> instance = new G<string> ();
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Type t = instance.GetType ();
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MethodBase mb1 = t.GetMethod ("M");
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RuntimeMethodHandle mh = mb1.MethodHandle;
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RuntimeTypeHandle th = t.TypeHandle;
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MethodBase mb2 = MethodBase.GetMethodFromHandle (mh, th);
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Assert.IsNotNull (mb2, "#1");
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Assert.AreEqual (t, mb2.DeclaringType, "#2");
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Assert.AreEqual ("M", mb2.Name, "#3");
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ParameterInfo [] parameters = mb2.GetParameters ();
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Assert.IsNotNull (parameters, "#4");
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Assert.AreEqual (1, parameters.Length, "#5");
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Assert.AreEqual (typeof (string), parameters [0].ParameterType, "#6");
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}
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[Test] // GetMethodFromHandle (RuntimeMethodHandle, RuntimeTypeHandle)
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public void GetMethodFromHandle2_Handle_Zero ()
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{
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RuntimeTypeHandle th = typeof (G<>).TypeHandle;
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RuntimeMethodHandle mh = new RuntimeMethodHandle ();
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try {
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MethodBase.GetMethodFromHandle (mh, th);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Handle is not initialized
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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}
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}
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public class G<T>
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{
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public void M (T t)
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{
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}
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}
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[Test]
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public void GetMethodFromHandle_Handle_Generic_Method ()
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{
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MethodInfo mi = typeof (SimpleClass).GetMethod ("GenericFoo");
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RuntimeMethodHandle handle = mi.MethodHandle;
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MethodBase res = MethodBase.GetMethodFromHandle (handle);
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Assert.AreEqual (mi, res, "#1");
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res = MethodBase.GetMethodFromHandle (handle, typeof (SimpleClass).TypeHandle);
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Assert.AreEqual (mi, res, "#2");
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}
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[Test]
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public void GetMethodFromHandle_Handle_Generic_Method_Instance ()
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{
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MethodInfo mi = typeof (SimpleClass).GetMethod ("GenericFoo").MakeGenericMethod (typeof (int));
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RuntimeMethodHandle handle = mi.MethodHandle;
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MethodBase res = MethodBase.GetMethodFromHandle (handle);
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Assert.AreEqual (mi, res, "#1");
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res = MethodBase.GetMethodFromHandle (handle, typeof (SimpleClass).TypeHandle);
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Assert.AreEqual (mi, res, "#2");
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}
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[Test]
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public void GetMethodFromHandle_Handle_Generic_Method_On_Generic_Class ()
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{
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MethodInfo mi = typeof (Generic<>).GetMethod ("GenericFoo");
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RuntimeMethodHandle handle = mi.MethodHandle;
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MethodBase res;
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try {
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MethodBase.GetMethodFromHandle (handle);
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Assert.Fail ("#1");
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} catch (ArgumentException) {
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}
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mi = typeof (Generic<int>).GetMethod ("GenericFoo").MakeGenericMethod (typeof (int));
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handle = mi.MethodHandle;
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try {
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MethodBase.GetMethodFromHandle (handle);
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Assert.Fail ("#2");
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} catch (ArgumentException) {
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}
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mi = typeof (Generic<>).GetMethod ("GenericFoo").MakeGenericMethod (typeof (int));
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handle = mi.MethodHandle;
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try {
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MethodBase.GetMethodFromHandle (handle);
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Assert.Fail ("#3");
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} catch (ArgumentException) {
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}
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<int>).TypeHandle);
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Assert.AreEqual (typeof (Generic<int>), res.DeclaringType, "#4");
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<double>).TypeHandle);
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Assert.AreEqual (typeof (Generic<double>), res.DeclaringType, "#5");
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<>).TypeHandle);
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Assert.AreEqual (typeof (Generic<>), res.DeclaringType, "#6");
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try {
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MethodBase.GetMethodFromHandle(handle, typeof (AnotherGeneric<double>).TypeHandle);
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Assert.Fail ("#7");
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} catch (ArgumentException) {
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}
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}
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[Test]
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public void GetMethodFromHandle_Handle_Method_On_Generic_Class ()
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{
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MethodInfo mi = typeof (Generic<>).GetMethod ("Foo");
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RuntimeMethodHandle handle = mi.MethodHandle;
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MethodBase res;
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try {
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MethodBase.GetMethodFromHandle(handle);
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Assert.Fail ("#1");
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} catch (ArgumentException) {
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}
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<>).TypeHandle);
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Assert.AreEqual (res, mi, "#2");
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mi = typeof (Generic<int>).GetMethod ("Foo");
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handle = mi.MethodHandle;
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try {
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MethodBase.GetMethodFromHandle(handle);
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Assert.Fail ("#3");
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} catch (ArgumentException) {
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}
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<int>).TypeHandle);
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Assert.AreEqual (typeof (Generic<int>), res.DeclaringType, "#4");
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<double>).TypeHandle);
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Assert.AreEqual (typeof (Generic<double>), res.DeclaringType, "#5");
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res = MethodBase.GetMethodFromHandle(handle, typeof (Generic<>).TypeHandle);
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Assert.AreEqual (typeof (Generic<>), res.DeclaringType, "#6");
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try {
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MethodBase.GetMethodFromHandle(handle, typeof (AnotherGeneric<double>).TypeHandle);
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Assert.Fail ("#7");
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} catch (ArgumentException) {
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}
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}
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// test case adapted from http://www.chrishowie.com/2010/11/24/mutable-strings-in-mono/
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public class FakeString {
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public int length;
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public char start_char;
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}
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private static FakeString UnsafeConversion<T> (T thing) where T : FakeString
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{
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return thing;
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}
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[Test]
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#if MOBILE
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[Category ("NotWorking")] // #10552
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#endif
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public void MutableString ()
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{
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var m = typeof (MethodBaseTest).GetMethod ("UnsafeConversion", BindingFlags.NonPublic | BindingFlags.Static);
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try {
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var m2 = m.MakeGenericMethod (typeof (string));
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Assert.Fail ("MakeGenericMethod");
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}
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catch (ArgumentException) {
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}
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}
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}
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}
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