def testFileTimes(self):
if issubclass(pywintypes.TimeType, datetime.datetime):
from win32timezone import TimeZoneInfo
now = datetime.datetime.now(tz=TimeZoneInfo.local())
nowish = now + datetime.timedelta(seconds=1)
later = now + datetime.timedelta(seconds=120)
else:
rc, tzi = win32api.GetTimeZoneInformation()
bias = tzi[0]
if rc==2: # daylight-savings is in effect.
bias += tzi[-1]
bias *= 60 # minutes to seconds...
tick = int(time.time())
now = pywintypes.Time(tick+bias)
nowish = pywintypes.Time(tick+bias+1)
later = pywintypes.Time(tick+bias+120)
filename = tempfile.mktemp("-testFileTimes")
# Windows docs the 'last time' isn't valid until the last write
# handle is closed - so create the file, then re-open it to check.
open(filename,"w").close()
f = win32file.CreateFile(filename, win32file.GENERIC_READ|win32file.GENERIC_WRITE,
0, None,
win32con.OPEN_EXISTING, 0, None)
try:
ct, at, wt = win32file.GetFileTime(f)
self.failUnless(ct >= now, "File was created in the past - now=%s, created=%s" % (now, ct))
self.failUnless( now <= ct <= nowish, (now, ct))
self.failUnless(wt >= now, "File was written-to in the past now=%s, written=%s" % (now,wt))
self.failUnless( now <= wt <= nowish, (now, wt))
# Now set the times.
win32file.SetFileTime(f, later, later, later)
# Get them back.
ct, at, wt = win32file.GetFileTime(f)
# XXX - the builtin PyTime type appears to be out by a dst offset.
# just ignore that type here...
if issubclass(pywintypes.TimeType, datetime.datetime):
self.failUnlessEqual(ct, later)
self.failUnlessEqual(at, later)
self.failUnlessEqual(wt, later)
finally:
f.Close()
os.unlink(filename)
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