public void UpdateTwiceShouldGenerateConcurrencyException()
{
int rowsUpdated = 0;
EmployeeDAO dao = new EmployeeDAO();
// Simulate two users getting same employee
Employee user1Employee = dao.GetEmployeeBySurname("Smartypants");
Employee user2Employee = dao.GetEmployeeBySurname("Smartypants");
// Change in user number 1
user1Employee.Phoneno = "555-555-5551";
rowsUpdated = dao.Update(user1Employee);
// User 1 updated
if (rowsUpdated == 1)
{
// Change in user number 2
user2Employee.Phoneno = "555-555-5552";
// NOOO!!! Concurrency Exception!
rowsUpdated = dao.Update(user2Employee);
}
Assert.IsTrue(rowsUpdated == -2);
}
//constructor
public EmployeeViewModel()
{
_dao = new EmployeeDAO();
}
public void EmployeeDAOReturnBySurnamShouldReturnEmployee()
{
EmployeeDAO dao = new EmployeeDAO();
Employee someEmployee = dao.GetEmployeeBySurname("Smartypants");
Assert.IsInstanceOfType(someEmployee, typeof(Employee));
}