def test_invoice_with_varied_line_items(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.10)
invoice.add_line_item("PROD001", 1, 10.00, 0.00)
self.assertEquals(2, len(invoice.line_items), "Both line items were not added correctly")
self.assertEquals(100.00, invoice.total_amount(), "Incorrect invoice amount calculated")
def test_invoice_with_single_tax_rate(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.20, tax_rate=0.10)
self.assertEquals(8.00, invoice.tax(), "Incorrect amount of tax calculated")
self.assertEquals(80.00, invoice.subtotal(), "Incorrect subtotal calculated")
self.assertEquals(88.00, invoice.total_amount(), "Incorrect total calculated")
def test_invoice_is_accepted(self):
invoice = InvoiceFactory.build()
self.assertIsNotNone(invoice.invoice_id, "Invoice ID was not set")
self.assertIsNotNone(invoice.invoice_date, "Invoice date was not set")
self.assertFalse(invoice.finalised,
"Invoice should not have been finalised")
def test_invoice_adds_line_item(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.10)
self.assertEquals(1, len(invoice.line_items),
"Line item was not added to Invoice correctly")
self.assertEquals(90.00, invoice.total_amount(),
"Incorrect order amount calculated")
def test_invoice_with_varied_line_items(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.10)
invoice.add_line_item("PROD001", 1, 10.00, 0.00)
self.assertEquals(2, len(invoice.line_items),
"Both line items were not added correctly")
self.assertEquals(100.00, invoice.total_amount(),
"Incorrect invoice amount calculated")
def test_invoice_with_single_tax_rate(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.20, tax_rate=0.10)
self.assertEquals(8.00, invoice.tax(),
"Incorrect amount of tax calculated")
self.assertEquals(80.00, invoice.subtotal(),
"Incorrect subtotal calculated")
self.assertEquals(88.00, invoice.total_amount(),
"Incorrect total calculated")
def test_invoice_with_invalid_discount_line_item(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 1.00, 2.0) # 200% discount
self.assertEquals(0.0, invoice.total_amount(), "Invoice amount should be zero, not negative")
def test_invoice_adds_line_item(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 100.00, 0.10)
self.assertEquals(1, len(invoice.line_items), "Line item was not added to Invoice correctly")
self.assertEquals(90.00, invoice.total_amount(), "Incorrect order amount calculated")
def test_invoice_is_accepted(self):
invoice = InvoiceFactory.build()
self.assertIsNotNone(invoice.invoice_id, "Invoice ID was not set")
self.assertIsNotNone(invoice.invoice_date, "Invoice date was not set")
self.assertFalse(invoice.finalised, "Invoice should not have been finalised")
def test_invoice_with_invalid_discount_line_item(self):
invoice = InvoiceFactory.build()
invoice.add_line_item("PROD000", 1, 1.00, 2.0) # 200% discount
self.assertEquals(0.0, invoice.total_amount(),
"Invoice amount should be zero, not negative")
