void CreateViewModel(FakeRegisteredPackageRepositories registeredPackageRepositories)
{
viewModel = new TestablePackagesViewModel(registeredPackageRepositories);
this.registeredPackageRepositories = registeredPackageRepositories;
taskFactory = viewModel.FakeTaskFactory;
}
void CreateViewModel(FakePackageManagementService packageManagementService)
{
viewModel = new TestablePackagesViewModel(packageManagementService);
this.packageManagementService = packageManagementService;
taskFactory = viewModel.FakeTaskFactory;
}