def testRMethods(self):
""" Test certain r* methods. These methods must be invoked
explicitly, rather than by means of an operator, in order
to be executed. Otherwise, their companion non-R method
will be invoked instead.
"""
s = Size(2, GiB)
# rtruediv, retains fractional quantities
self.assertEqual(s.__rtruediv__(s), Fraction(1))
with self.assertRaises(SizeNonsensicalOpError):
s.__rtruediv__("str") # pylint: disable=pointless-statement
# rdivmod
self.assertEqual(
Size(16, MiB).__rdivmod__(Size(24, MiB)),
(1, Size(8, MiB))
)
with self.assertRaises(SizeNonsensicalOpError):
divmod(s.__rdivmod__("str"))
# // rfloordiv
self.assertEqual(s.__rfloordiv__(s), 1)
with self.assertRaises(SizeNonsensicalOpError):
s.__rfloordiv__("str") # pylint: disable=pointless-statement
# rmod
self.assertEqual(s.__rmod__(s), Size(0))
with self.assertRaises(SizeNonsensicalOpError):
s.__rmod__("str") # pylint: disable=expression-not-assigned, pointless-statement
# rsub
self.assertEqual(s.__rsub__(s), Size(0))
with self.assertRaises(SizeNonsensicalOpError):
s.__rsub__(2) # pylint: disable=pointless-statement