def test_multiplication(self):
val = CV(None)
total = val * None
self.assertIsNone(total)
self.assertIsNone(total)
total = None * val
self.assertIsNone(total)
self.assertIsNone(total)
val = CV(Decimal("1000"))
total = None * val
self.assertIsNone(total)
self.assertIsNone(total)
total = val * None
self.assertIsNone(total)
self.assertIsNone(total)
total = val * Decimal("2")
self.assertEquals(Decimal("2000"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("4"), total.as_usd(Decimal("500")))
total = Decimal("2") * val
self.assertEquals(Decimal("2000"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("4"), total.as_usd(Decimal("500")))
total = val
total *= Decimal("2")
self.assertEquals(Decimal("2000"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("4"), total.as_usd(Decimal("500")))
val = CV(Decimal("4"), Decimal("500")) + CV(Decimal("1000"))
total = Decimal("-2") * val
self.assertEquals(Decimal("-6000"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("-12"), total.as_usd(Decimal("500")))
# test invalid combinations
val1 = CV(Decimal("10"))
val2 = CV(Decimal("20"))
try:
total = val1 * val2
self.assertFalse(True, "Should have thrown, invalid operation")
except:
pass
def test_division(self):
val = CV(None)
total = val / None
self.assertIsNone(total)
self.assertIsNone(total)
total = None / val
self.assertIsNone(total)
self.assertIsNone(total)
val = CV(Decimal("1000"))
total = None / val
self.assertIsNone(total)
self.assertIsNone(total)
total = val / None
self.assertIsNone(total)
self.assertIsNone(total)
total = val / Decimal("2")
self.assertEquals(Decimal("500"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("1"), total.as_usd(Decimal("500")))
total = val
total /= Decimal("2")
self.assertEquals(Decimal("500"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("1"), total.as_usd(Decimal("500")))
try:
total = Decimal("2") / val
self.assertTrue(
False,
"Should have raised exception as numerator must always be CurrencyValue"
)
except Exception as e:
pass
val = CV(Decimal("4"), Decimal("500")) + CV(Decimal("1000"))
total = val / Decimal("-2")
self.assertEquals(Decimal("-1500"), total.as_local(Decimal("500")))
self.assertEquals(Decimal("-3"), total.as_usd(Decimal("500")))
