mirror of https://github.com/python/cpython
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
|
from test_support import verbose
|
||
|
|
import string, sys
|
||
|
|
|
||
|
|
# test string formatting operator (I am not sure if this is being tested
|
||
|
|
# elsewhere but, surely, some of the given cases are *not* tested because
|
||
|
|
# they crash python)
|
||
|
|
# test on unicode strings as well
|
||
|
|
|
||
|
|
def testformat(formatstr, args, output=None):
|
||
|
|
if verbose:
|
||
|
|
if output:
|
||
|
|
print "%s %% %s =? %s ..." %\
|
||
|
|
(repr(formatstr), repr(args), repr(output)),
|
||
|
|
else:
|
||
|
|
print "%s %% %s works? ..." % (repr(formatstr), repr(args)),
|
||
|
|
try:
|
||
|
|
result = formatstr % args
|
||
|
|
except OverflowError:
|
||
|
|
if verbose:
|
||
|
|
print 'overflow (this is fine)'
|
||
|
|
else:
|
||
|
|
if output and result != output:
|
||
|
|
if verbose:
|
||
|
|
print 'no'
|
||
|
|
print "%s %% %s == %s != %s" %\
|
||
|
|
(repr(formatstr), repr(args), repr(result), repr(output))
|
||
|
|
else:
|
||
|
|
if verbose:
|
||
|
|
print 'yes'
|
||
|
|
|
||
|
|
def testboth(formatstr, *args):
|
||
|
|
testformat(formatstr, *args)
|
||
|
|
testformat(unicode(formatstr), *args)
|
||
|
|
|
||
|
|
|
||
|
|
testboth("%.1d", (1,), "1")
|
||
|
|
testboth("%.*d", (sys.maxint,1)) # expect overflow
|
||
|
|
testboth("%.100d", (1,), '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
|
||
|
|
testboth("%#.117x", (1,), '0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
|
||
|
|
testboth("%#.118x", (1,), '0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
|
||
|
|
|
||
|
|
testboth("%f", (1.0,), "1.000000")
|
||
|
|
# these are trying to test the limits of the internal magic-number-length
|
||
|
|
# formatting buffer, if that number changes then these tests are less
|
||
|
|
# effective
|
||
|
|
testboth("%#.*g", (109, -1.e+49/3.))
|
||
|
|
testboth("%#.*g", (110, -1.e+49/3.))
|
||
|
|
testboth("%#.*g", (110, -1.e+100/3.))
|
||
|
|
|
||
|
|
# test some ridiculously large precision, expect overflow
|
||
|
|
testboth('%12.*f', (123456, 1.0))
|
||
|
|
|