def _reduceSelf(self):
"""
Parse our unit and reduce ourselves to the smallest representation
"""
if isinstance(self.unit, basestring):
self.unit = self.__findUnit()
a = self.amount * self.prefix
self.amount, self.prefix = Prefix.closestPrefix(a)
def testSimplePrefix(self):
r = Prefix.closestPrefix(1000)
assert r == (1.0, Prefix.Prefixes.kilo)
def testNegativePrefix(self):
r = Prefix.closestPrefix(-1000)
assert r == (-1.0, Prefix.Prefixes.kilo), r
def testSmallPrefix(self):
r = Prefix.closestPrefix(0.05)
assert r == (50, Prefix.Prefixes.milli)
def testComplexPrefix(self):
r = Prefix.closestPrefix(1024)
assert r == (1.024, Prefix.Prefixes.kilo)