public void GetKeyType_returns_null_for_non_dictionary_type(GenericDictionaryFactory sut)
{
// Act
var result = sut.GetKeyType(typeof(ISampleService));
// Assert
Assert.That(result, Is.Null);
}
public void GetKeyType_returns_correct_key_type_for_generic_dictionary(GenericDictionaryFactory sut)
{
// Act
var result = sut.GetKeyType(typeof(IDictionary <int, ISampleService>));
// Assert
Assert.That(result, Is.EqualTo(typeof(int)));
}