@Test
public void billingSystemCallsAllTheComponents() {
final List<Customer> fakeCustomers = new ArrayList<Customer>();
fakeCustomers.add(FIRST_CUSTOMER);
final List<Call> fakeCalls = new ArrayList<Call>();
final Call fakeCall =
new Call(new CallEvent(null, null, null), new CallEvent(null, null, null));
fakeCalls.add(fakeCall);
context.checking(
new Expectations() {
{
oneOf(customerDB).getCustomers();
will(returnValue(fakeCustomers));
oneOf(callLog).getCalls(FIRST_CUSTOMER);
will(returnValue(fakeCalls));
allowing(billGenerator)
.generateBill(
with(any(Customer.class)), with(any(List.class)), with(any(String.class)));
oneOf(tariffLibrary).tarriffFor(FIRST_CUSTOMER);
will(returnValue(Tariff.Business));
oneOf(strategy).getCost(Tariff.Business, fakeCall);
will(returnValue(BigDecimal.ZERO));
}
});
billingSystem.createCustomerBills();
}
@Test
public void callEndedCallsCallLog() {
context.checking(
new Expectations() {
{
oneOf(callLog).callCompleted(FIRST_CUSTOMER_NUMBER, OTHER_CUSTOMER_NUMBER);
}
});
billingSystem.callCompleted(FIRST_CUSTOMER_NUMBER, OTHER_CUSTOMER_NUMBER);
}
@Test
public void noBillGeneratedForNoCustomers() {
final List<Customer> fakeCustomers = new ArrayList<Customer>();
context.checking(
new Expectations() {
{
oneOf(customerDB).getCustomers();
will(returnValue(fakeCustomers));
never(billGenerator)
.generateBill(
with(any(Customer.class)), with(any(List.class)), with(any(String.class)));
}
});
billingSystem.createCustomerBills();
}
@Test
public void oneCustomerGeneratesOneBill() {
final List<Customer> fakeCustomers = new ArrayList<Customer>();
fakeCustomers.add(FIRST_CUSTOMER);
context.checking(
new Expectations() {
{
oneOf(customerDB).getCustomers();
will(returnValue(fakeCustomers));
oneOf(callLog).getCalls(FIRST_CUSTOMER);
oneOf(billGenerator)
.generateBill(with(FIRST_CUSTOMER), with(any(List.class)), with(any(String.class)));
}
});
billingSystem.createCustomerBills();
}
@Test
public void threeCustomersGenerateThreeBills() {
final List<Customer> fakeCustomers = new ArrayList<Customer>();
fakeCustomers.add(FIRST_CUSTOMER);
fakeCustomers.add(SECOND_CUSTOMER);
fakeCustomers.add(OTHER_CUSTOMER);
context.checking(
new Expectations() {
{
oneOf(customerDB).getCustomers();
will(returnValue(fakeCustomers));
allowing(callLog).getCalls(with(any(Customer.class)));
exactly(3)
.of(billGenerator)
.generateBill(
with(any(Customer.class)), with(any(List.class)), with(any(String.class)));
}
});
billingSystem.createCustomerBills();
}