public void DeactivateAdminUser_does_not_deactivate_admin_user_without_confirmation()
{
// Given
var adminUserId = UserTestHelper.GetDefaultAdminUser().Id;
const string expectedErrorMessage = "You must confirm before deactivating this account";
var deactivateViewModel =
Builder <DeactivateAdminViewModel> .CreateNew().With(vm => vm.Confirm = false).Build();
administratorController.ModelState.AddModelError(nameof(DeactivateAdminViewModel.Confirm), expectedErrorMessage);
// When
var result = administratorController.DeactivateAdmin(adminUserId, deactivateViewModel);
// Then
result.Should().BeViewResult().WithDefaultViewName().ModelAs <DeactivateAdminViewModel>();
administratorController.ModelState[nameof(DeactivateAdminViewModel.Confirm)].Errors[0].ErrorMessage.Should()
.BeEquivalentTo(expectedErrorMessage);
A.CallTo(() => userDataService.DeactivateAdmin(adminUserId)).MustNotHaveHappened();
}