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Rewrite to use test_support's fine fcmp instead -- I didn't know that 

existed when I wrote this test.
This commit is contained in:
Tim Peters 2001-09-06 22:07:50 +00:00
parent 4bd810aaf2
commit 419670dc60
1 changed files with 3 additions and 16 deletions
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19
Lib/test/test_complex.py
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@ -1,26 +1,13 @@
from test_support import TestFailed
from test_support import TestFailed, fcmp
from random import random
# XXX need many, many more tests here.
nerrors = 0
def check_close_real(x, y, eps=1e-9):
"""Return true iff floats x and y "are close\""""
# put the one with larger magnitude second
if abs(x) > abs(y):
x, y = y, x
if y == 0:
return abs(x) < eps
if x == 0:
return abs(y) < eps
# check that relative difference < eps
return abs((x-y)/y) < eps
def check_close(x, y, eps=1e-9):
def check_close(x, y):
"""Return true iff complexes x and y "are close\""""
return check_close_real(x.real, y.real, eps) and \
check_close_real(x.imag, y.imag, eps)
return fcmp(x.real, y.real) == 0 == fcmp(x.imag, y.imag)
def test_div(x, y):
"""Compute complex z=x*y, and check that z/x==y and z/y==x."""