@Test
public void calculateDiscountPoints() {
String productsFlatFile = "EL-002,FU-007,FU-008";
Purchase result = null;
result = BillingCalculator.calculateTotalPurchase(customer, productsFlatFile);
Customer client = Mockito.mock(Customer.class);
client = result.getCustomer();
when(client.calculateDiscountPoints())
.thenReturn(result.getTotalPrice().multiply(new BigDecimal(Math.random() * 0.02)));
when(client.discountPoints()).thenReturn(true);
if ((client.getPoints().intValue()) > 1000) {
client.discountPoints();
}
}
/** test for all methods of customer points system of class Customer */
@Test
public void addPoints() {
int points;
String productsFlatFile = "EL-002,FU-007,FU-008";
Purchase result = null;
result = BillingCalculator.calculateTotalPurchase(customer, productsFlatFile);
Customer client = Mockito.mock(Customer.class);
when(client.calculatePoints())
.thenReturn(points = (result.getTotalPrice().divide(new BigDecimal(1000))).intValue());
when(client.addPoints()).thenReturn(customer.getPoints().add(new BigDecimal(points)));
customer.calculatePoints();
customer.addPoints();
}