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import struct
## import pdb
def simple_err(func, *args):
try:
apply(func, args)
except struct.error:
pass
else:
print 'expected struct.error not caught'
## pdb.set_trace()
simple_err(struct.calcsize, 'Q')
sz = struct.calcsize('i')
if sz * 3 <> struct.calcsize('iii'):
print 'inconsistent sizes'
sz = struct.calcsize('cbhilfd')
if sz * 3 <> struct.calcsize('3c3b3h3i3l3f3d'):
print 'inconsistent sizes'
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
s = struct.pack('xcbhilfd', c, b, h, i, l, f, d)
cp, bp, hp, ip, lp, fp, dp = struct.unpack('xcbhilfd', 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
print 'unpack/pack not transitive'
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