public void UpdateViewModelTwiceShouldGenerateConcurrencyException()
{
int rowsUpdated = 0;
EmployeeViewModel user1Vm = new EmployeeViewModel();
EmployeeViewModel user2Vm = new EmployeeViewModel();
// Simulate users getting same employee:
user1Vm.Lastname = "Smartypants";
user1Vm.GetBySurname();
user2Vm.Lastname = "Smartypants";
user2Vm.GetBySurname();
// Change phone number for user 1:
user1Vm.Phoneno = "555-555-5551";
// User 1 updates:
rowsUpdated = user1Vm.Update();
if (rowsUpdated == 1)
{
// Change phone numeber for user 2:
user2Vm.Phoneno = "555-555-5552";
// Conncurrency exception rowsUpdated should = -2
rowsUpdated = user2Vm.Update();
}
Assert.IsTrue(rowsUpdated == -2);
}
