def test_unsigned(self):
if _debug: TestUnsigned._debug("test_unsigned")
obj = Unsigned()
assert obj.value == 0
assert Unsigned.is_valid(1)
assert Unsigned.is_valid('1')
assert not Unsigned.is_valid(-1)
if sys.version[0] == 2:
assert Unsigned.is_valid(long(1))
assert not Unsigned.is_valid(long(-1))
assert not Unsigned.is_valid(True)
assert not Unsigned.is_valid(-1)
assert not Unsigned.is_valid(1.0)
with self.assertRaises(TypeError):
Unsigned("some string")
with self.assertRaises(TypeError):
Unsigned(1.0)
def is_valid(cls, arg):
"""Return True if arg is valid value for the class."""
return Unsigned.is_valid(arg) and (0 <= arg <= 65535)
