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//
// System.Reflection.ConstructorInfo Test Cases
//
// Authors:
// Gert Driesen (drieseng@users.sourceforge.net)
//
// (c) 2007 Gert Driesen
//
// 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.Runtime.Serialization;
using NUnit.Framework;
namespace MonoTests.System.Reflection
{
[TestFixture]
public class ConstructorInfoTest
{
[Test]
public void Invoke ()
{
ConstructorInfo ctor = typeof (Foo).GetConstructor (
BindingFlags.Public | BindingFlags.Instance, null,
Type.EmptyTypes, null);
Foo foo = ctor.Invoke (new object [0]) as Foo;
Assert.IsNotNull (foo, "#1");
}
[Test]
public void InvokeAbstract ()
{
object obj = FormatterServices.GetUninitializedObject (typeof (Foo));
ConstructorInfo ctor = typeof (AbstractFoo).GetConstructor (
BindingFlags.Instance | BindingFlags.NonPublic, null,
Type.EmptyTypes, null);
Assert.IsNotNull (ctor, "#A1");
object ret = ctor.Invoke (obj, new object [0]);
Assert.IsNull (ret, "#A2");
try {
ctor.Invoke (null, new object [0]);
Assert.Fail ("#B1");
} catch (TargetException ex) {
// Non-static method requires a target
Assert.AreEqual (typeof (TargetException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
}
try {
ctor.Invoke (new object [0]);
Assert.Fail ("#C1");
} catch (MemberAccessException ex) {
// Cannot create an abstract class
Assert.AreEqual (typeof (MemberAccessException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
}
}
[Test]
public void InvokeOptionalArguments ()
{
var constructor = typeof (Optional).GetConstructors () [0];
try {
constructor.Invoke (BindingFlags.Default, null, null, null);
Assert.Fail ("#1");
} catch (TargetParameterCountException) {
}
object[] parameters = new [] { Type.Missing, Type.Missing, Type.Missing };
var instance = constructor.Invoke (BindingFlags.InvokeMethod | BindingFlags.CreateInstance, null, parameters, null);
Assert.IsNotNull (instance, "#2a");
}
abstract class AbstractFoo
{
}
class Foo : AbstractFoo
{
}
[Test]
[ExpectedException (typeof (MemberAccessException))]
public void InvokeOpenGenericType () {
typeof (Gen<>).GetConstructor (Type.EmptyTypes).Invoke (null);
}
public class Gen<T> {
public Gen() {
}
}
class Optional
{
public Optional (string caption = null, string value = null, string layoutName = null)
{
}
}
[Test]
[ExpectedException (typeof (TargetException))]
public void InvokeWithNullTarget ()
{
typeof (Foo).GetConstructors ()[0].Invoke (null, BindingFlags.Default, null, null, null);
}
[Test]
[ExpectedException (typeof (TargetException))]
public void InvokeWithWrongTarget ()
{
typeof (Foo).GetConstructors ()[0].Invoke (new object (), BindingFlags.Default, null, null, null);
}
[Test]
public void ContainsGenericParametersOnGenericType ()
{
var ctor = typeof (Gen<>).GetConstructor (Type.EmptyTypes);
Assert.IsTrue (ctor.ContainsGenericParameters);
}
[Test]
public void ConstructorInfoModule ()
{
Type type = typeof (Foo);
ConstructorInfo co = type.GetConstructors ()[0];
Assert.AreEqual (type.Module, co.Module);
}
delegate int D1 ();
[Test] // https://github.com/mono/mono/issues/10838
public void Issue10838 ()
{
var ctorInfo = typeof (D1).GetConstructors ()[0];
Assert.AreEqual ("Void .ctor(System.Object, IntPtr)", ctorInfo.ToString ());
}
}
}
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