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Added f/d tests for specific byte orders.

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This commit is contained in:
Guido van Rossum 1997-01-03 00:09:46 +00:00
parent 4ccc531f34
commit 420c11c6aa
1 changed files with 19 additions and 9 deletions
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28
Lib/test/test_struct.py
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@ -38,16 +38,20 @@ l = 65536
f = 3.1415
d = 3.1415
for format in ('xcbhilfd', 'xcBHILfd', '@xsbhilfd'):
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)))
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
# Test some of the new features in detail
# (format, argument, big-endian result, little-endian result, asymmetric)
tests = [
@ -77,6 +81,12 @@ tests = [
('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):