I am embarking upon my first journey of test driven development in C#. To get started I'm using MSTest and Rhino.Mocks. I am attempting to write my first unit tests against my ICustomerRepository. It seems tedious to new up a Customer for each test method. In ruby-on-rails I'd create a seed file and load the customer for each test. It seems logical that I could put this boiler plate Customer into a property of the test class but then I would run the risk of it being modified. What are my options for simplifying this code?
[TestMethod]
public class CustomerTests : TestClassBase
{
[TestMethod]
public void CanGetCustomerById()
{
// arrange
var customer = new Customer()
{
CustId = 5,
DifId = "55",
CustLookupName = "The Dude",
LoginList = new[] {
new Login { LoginCustId = 5, LoginName = "tdude" } }
};
var repository = Stub<ICustomerRepository>();
// act
repository.Stub(rep => rep.GetById(5)).Return(customer);
// assert
Assert.AreEqual(customer, repository.GetById(5));
}
[TestMethod]
public void CanGetCustomerByDifId()
{
// arrange
var customer = new Customer()
{
CustId = 5,
DifId = "55",
CustLookupName = "The Dude",
LoginList = new[] {
new Login { LoginCustId = 5, LoginName = "tdude" } }
};
var repository = Stub<ICustomerRepository>();
// act
repository.Stub(rep => rep.GetCustomerByDifID("55")).Return(customer);
// assert
Assert.AreEqual(customer, repository.GetCustomerByDifID("55"));
}
[TestMethod]
public void CanGetCustomerByLogin()
{
// arrange
var customer = new Customer()
{
CustId = 5,
DifId = "55",
CustLookupName = "The Dude",
LoginList = new[] {
new Login { LoginCustId = 5, LoginName = "tdude" } }
};
var repository = Stub<ICustomerRepository>();
// act
repository.Stub(rep =>
rep.GetCustomerByLogin("tdude")).Return(customer);
// assert
Assert.AreEqual(customer, repository.GetCustomerByLogin("tdude"));
}
}
Test Base Class
public class TestClassBase
{
protected T Stub<T>() where T : class
{
return MockRepository.GenerateStub<T>();
}
}
ICustomerRepository and IRepository
public interface ICustomerRepository : IRepository<Customer>
{
IList<Customer> FindCustomers(string q);
Customer GetCustomerByDifID(string difId);
Customer GetCustomerByLogin(string loginName);
}
public interface IRepository<T>
{
void Save(T entity);
void Save(List<T> entity);
bool Save(T entity, out string message);
void Delete(T entity);
T GetById(int id);
ICollection<T> FindAll();
}
