public void CreateEvent_Accessors_ThrowsIfAlreadyExists()
{
var addRemoveMethod = MutableMethodInfoObjectMother.Create(
_mutableType, parameters: new[] { ParameterDeclarationObjectMother.Create(typeof(Action)) });
var differentHandlerAddRemoveMethod = MutableMethodInfoObjectMother.Create(
_mutableType, parameters: new[] { ParameterDeclarationObjectMother.Create(typeof(Func <int>)) });
var event_ = _mutableType.AddEvent2("Event", addMethod: addRemoveMethod, removeMethod: addRemoveMethod);
Assert.That(() => _factory.CreateEvent(_mutableType, "OtherName", 0, addRemoveMethod, addRemoveMethod, null), Throws.Nothing);
Assert.That(
() => _factory.CreateEvent(_mutableType, event_.Name, 0, differentHandlerAddRemoveMethod, differentHandlerAddRemoveMethod, null),
Throws.Nothing);
Assert.That(
() => _factory.CreateEvent(_mutableType, event_.Name, 0, addRemoveMethod, addRemoveMethod, null),
Throws.InvalidOperationException.With.Message.EqualTo("Event with equal name and signature already exists."));
}