mirror of
https://github.com/python/cpython.git
synced 2024-11-24 08:52:25 +01:00
122 lines
4.2 KiB
Python
122 lines
4.2 KiB
Python
from test_support import TestFailed, verbose
|
|
import struct
|
|
## import pdb
|
|
|
|
def simple_err(func, *args):
|
|
try:
|
|
apply(func, args)
|
|
except struct.error:
|
|
pass
|
|
else:
|
|
raise TestFailed, "%s%s did not raise struct.error" % (
|
|
func.__name__, args)
|
|
## pdb.set_trace()
|
|
|
|
simple_err(struct.calcsize, 'Q')
|
|
|
|
sz = struct.calcsize('i')
|
|
if sz * 3 <> struct.calcsize('iii'):
|
|
raise TestFailed, 'inconsistent sizes'
|
|
|
|
fmt = 'cbxxxxxxhhhhiillffd'
|
|
fmt3 = '3c3b18x12h6i6l6f3d'
|
|
sz = struct.calcsize(fmt)
|
|
sz3 = struct.calcsize(fmt3)
|
|
if sz * 3 <> sz3:
|
|
raise TestFailed, 'inconsistent sizes (3*%s -> 3*%d = %d, %s -> %d)' % (
|
|
`fmt`, sz, 3*sz, `fmt3`, sz3)
|
|
|
|
simple_err(struct.pack, 'iii', 3)
|
|
simple_err(struct.pack, 'i', 3, 3, 3)
|
|
simple_err(struct.pack, 'i', 'foo')
|
|
simple_err(struct.unpack, 'd', 'flap')
|
|
s = struct.pack('ii', 1, 2)
|
|
simple_err(struct.unpack, 'iii', s)
|
|
simple_err(struct.unpack, 'i', s)
|
|
|
|
c = 'a'
|
|
b = 1
|
|
h = 255
|
|
i = 65535
|
|
l = 65536
|
|
f = 3.1415
|
|
d = 3.1415
|
|
|
|
for prefix in ('', '@', '<', '>', '=', '!'):
|
|
for format in ('xcbhilfd', 'xcBHILfd'):
|
|
format = prefix + format
|
|
if verbose:
|
|
print "trying:", format
|
|
s = struct.pack(format, c, b, h, i, l, f, d)
|
|
cp, bp, hp, ip, lp, fp, dp = struct.unpack(format, s)
|
|
if (cp <> c or bp <> b or hp <> h or ip <> i or lp <> l or
|
|
int(100 * fp) <> int(100 * f) or int(100 * dp) <> int(100 * d)):
|
|
# ^^^ calculate only to two decimal places
|
|
raise TestFailed, "unpack/pack not transitive (%s, %s)" % (
|
|
str(format), str((cp, bp, hp, ip, lp, fp, dp)))
|
|
|
|
# Test some of the new features in detail
|
|
|
|
# (format, argument, big-endian result, little-endian result, asymmetric)
|
|
tests = [
|
|
('c', 'a', 'a', 'a', 0),
|
|
('xc', 'a', '\0a', '\0a', 0),
|
|
('cx', 'a', 'a\0', 'a\0', 0),
|
|
('s', 'a', 'a', 'a', 0),
|
|
('0s', 'helloworld', '', '', 1),
|
|
('1s', 'helloworld', 'h', 'h', 1),
|
|
('9s', 'helloworld', 'helloworl', 'helloworl', 1),
|
|
('10s', 'helloworld', 'helloworld', 'helloworld', 0),
|
|
('11s', 'helloworld', 'helloworld\0', 'helloworld\0', 1),
|
|
('20s', 'helloworld', 'helloworld'+10*'\0', 'helloworld'+10*'\0', 1),
|
|
('b', 7, '\7', '\7', 0),
|
|
('b', -7, '\371', '\371', 0),
|
|
('B', 7, '\7', '\7', 0),
|
|
('B', 249, '\371', '\371', 0),
|
|
('h', 700, '\002\274', '\274\002', 0),
|
|
('h', -700, '\375D', 'D\375', 0),
|
|
('H', 700, '\002\274', '\274\002', 0),
|
|
('H', 0x10000-700, '\375D', 'D\375', 0),
|
|
('i', 70000000, '\004,\035\200', '\200\035,\004', 0),
|
|
('i', -70000000, '\373\323\342\200', '\200\342\323\373', 0),
|
|
('I', 70000000L, '\004,\035\200', '\200\035,\004', 0),
|
|
('I', 0x100000000L-70000000, '\373\323\342\200', '\200\342\323\373', 0),
|
|
('l', 70000000, '\004,\035\200', '\200\035,\004', 0),
|
|
('l', -70000000, '\373\323\342\200', '\200\342\323\373', 0),
|
|
('L', 70000000L, '\004,\035\200', '\200\035,\004', 0),
|
|
('L', 0x100000000L-70000000, '\373\323\342\200', '\200\342\323\373', 0),
|
|
('f', 2.0, '@\000\000\000', '\000\000\000@', 0),
|
|
('d', 2.0, '@\000\000\000\000\000\000\000',
|
|
'\000\000\000\000\000\000\000@', 0),
|
|
('f', -2.0, '\300\000\000\000', '\000\000\000\300', 0),
|
|
('d', -2.0, '\300\000\000\000\000\000\000\000',
|
|
'\000\000\000\000\000\000\000\300', 0),
|
|
]
|
|
|
|
def badpack(fmt, arg, got, exp):
|
|
return
|
|
|
|
def badunpack(fmt, arg, got, exp):
|
|
return "unpack(%s, %s) -> (%s,) # expected (%s,)" % (
|
|
`fmt`, `arg`, `got`, `exp`)
|
|
|
|
isbigendian = struct.pack('=h', 1) == '\0\1'
|
|
|
|
for fmt, arg, big, lil, asy in tests:
|
|
if verbose:
|
|
print `fmt`, `arg`, `big`, `lil`
|
|
for (xfmt, exp) in [('>'+fmt, big), ('!'+fmt, big), ('<'+fmt, lil),
|
|
('='+fmt, isbigendian and big or lil)]:
|
|
res = struct.pack(xfmt, arg)
|
|
if res != exp:
|
|
raise TestFailed, "pack(%s, %s) -> %s # expected %s" % (
|
|
`fmt`, `arg`, `res`, `exp`)
|
|
n = struct.calcsize(xfmt)
|
|
if n != len(res):
|
|
raise TestFailed, "calcsize(%s) -> %d # expected %d" % (
|
|
`xfmt`, n, len(res))
|
|
rev = struct.unpack(xfmt, res)[0]
|
|
if rev != arg and not asy:
|
|
raise TestFailed, "unpack(%s, %s) -> (%s,) # expected (%s,)" % (
|
|
`fmt`, `res`, `rev`, `arg`)
|