def shouldDoLimitedSubtracts(self):
v1 = ScientificFloat("3.14")
v2 = ScientificFloat("3.141")
self.assertAlmostEqual(v1, v2, 2)
r1 = v1 - 3.13
self.assertAlmostEqual(r1, .01, 2)
r2 = 3.15 - v1
self.assertAlmostEqual(r2, .01, 2)
class MockObject(Fixture):
_typeDict = {
"sFloat1": ScientificFloat,
"sFloat2": ScientificFloat,
}
sFloat1 = ScientificFloat("3.14")
def sFloat2(self):
return self.sFloat1
def testApplicationProtocolEquals(self):
obj = self.pro.parse(self.cell.text())
assert self.pro.equals(self.cell.text(), obj)
assert self.pro.equals(ScientificFloat("2.798"), obj)
def shouldDoComparesWell(self):
pi = 3.141592865
assert ScientificFloat("3.14") == pi
assert ScientificFloat("3.142") == pi # original 3.141 wrong!
assert ScientificFloat("3.1416") == pi # original 3.1415 wrong!
assert ScientificFloat("3.14159") == pi
assert ScientificFloat("3.141592865") == pi
assert (ScientificFloat("3.140") == pi) is False
assert (ScientificFloat("3.144") == pi) is False
assert (ScientificFloat("3.1414") == pi) is False
assert (ScientificFloat("3.141592863") == pi) is False
assert ScientificFloat("3.141592863") != pi
assert ScientificFloat("2.5") < pi
av = 6.02e23
assert ScientificFloat("6.0e23") == av
assert ScientificFloat("12") == 12.0
assert ScientificFloat("11") == 11
assert ScientificFloat("-12.05") == -12.051