public void MapRegionModelToAppRegistrationNoExistingRegionsReturnsSuccessForValidDataModelsWithLegacyRegions()
{
// Arrange
var appRegistrationModel = ModelBuilders.ValidAppRegistrationModel(ModelBuilders.PathName);
var legacyRegionModel = ModelBuilders.ValidLegacyRegionModel(ModelBuilders.PathName, Enums.PageRegion.Head);
var validRegionModel = ModelBuilders.ValidRegionModel(Enums.PageRegion.Head);
A.CallTo(() => fakeMapper.Map <RegionModel>(legacyRegionModel));
// Act
modelMappingService.MapRegionModelToAppRegistration(appRegistrationModel, legacyRegionModel);
// assert
A.CallTo(() => fakeMapper.Map <RegionModel>(legacyRegionModel)).MustHaveHappenedOnceExactly();
Assert.NotNull(appRegistrationModel.Regions);
}