public void CreateProperty_Accessors_ThrowsIfAlreadyExists()
{
var returnType = ReflectionObjectMother.GetSomeType();
var getMethod = MutableMethodInfoObjectMother.Create(declaringType: _mutableType, returnType: returnType);
var property = _mutableType.AddProperty2("Property", getMethod: getMethod);
Assert.That(() => _factory.CreateProperty(_mutableType, "OtherName", 0, getMethod, null), Throws.Nothing);
var differentPropertyType = ReflectionObjectMother.GetSomeOtherType();
var getMethod2 = MutableMethodInfoObjectMother.Create(declaringType: _mutableType, returnType: differentPropertyType);
Assert.That(() => _factory.CreateProperty(_mutableType, property.Name, 0, getMethod2, null), Throws.Nothing);
var differentIndexParameters = ParameterDeclarationObjectMother.CreateMultiple(2);
var getMethod3 = MutableMethodInfoObjectMother.Create(declaringType: _mutableType, returnType: returnType, parameters: differentIndexParameters);
Assert.That(() => _factory.CreateProperty(_mutableType, property.Name, 0, getMethod3, null), Throws.Nothing);
Assert.That(
() => _factory.CreateProperty(_mutableType, property.Name, 0, getMethod, null),
Throws.InvalidOperationException.With.Message.EqualTo("Property with equal name and signature already exists."));
}