public void ValidateInstanceSettings_should_throw_exception_if_ColorMapping_is_null()
        {
            var settings = new ConsoleLogSettings {
                ColorMapping = null
            };

            new Action(() => SettingsValidator.ValidateInstanceSettings(settings))
            .Should().Throw <ArgumentNullException>();
        }
 public void ValidateInstanceSettings_should_throw_exception_on_null_settings()
 {
     new Action(() => SettingsValidator.ValidateInstanceSettings(null))
     .Should().Throw <ArgumentNullException>();
 }