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#! /usr/bin/env python
# Sanity checker for time.strftime
import time, calendar, sys, re
from test.test_support import verbose
def main():
global verbose
# For C Python, these tests expect C locale, so we try to set that
# explicitly. For Jython, Finn says we need to be in the US locale; my
# understanding is that this is the closest Java gets to C's "C" locale.
# Jython ought to supply an _locale module which Does The Right Thing, but
# this is the best we can do given today's state of affairs.
try:
import java
java.util.Locale.setDefault(java.util.Locale.US)
except ImportError:
# Can't do this first because it will succeed, even in Jython
import locale
locale.setlocale(locale.LC_TIME, 'C')
now = time.time()
strftest(now)
verbose = 0
# Try a bunch of dates and times, chosen to vary through time of
# day and daylight saving time
for j in range(-5, 5):
for i in range(25):
strftest(now + (i + j*100)*23*3603)
def escapestr(text, ampm):
"""Escape text to deal with possible locale values that have regex
syntax while allowing regex syntax used for the comparison."""
new_text = re.escape(text)
new_text = new_text.replace(re.escape(ampm), ampm)
new_text = new_text.replace("\%", "%")
new_text = new_text.replace("\:", ":")
new_text = new_text.replace("\?", "?")
return new_text
def strftest(now):
if verbose:
print("strftime test for", time.ctime(now))
nowsecs = str(int(now))[:-1]
gmt = time.gmtime(now)
now = time.localtime(now)
if now[3] < 12: ampm='(AM|am)'
else: ampm='(PM|pm)'
jan1 = time.localtime(time.mktime((now[0], 1, 1, 0, 0, 0, 0, 1, 0)))
try:
if now[8]: tz = time.tzname[1]
else: tz = time.tzname[0]
except AttributeError:
tz = ''
if now[3] > 12: clock12 = now[3] - 12
elif now[3] > 0: clock12 = now[3]
else: clock12 = 12
# Make sure any characters that could be taken as regex syntax is
# escaped in escapestr()
expectations = (
('%a', calendar.day_abbr[now[6]], 'abbreviated weekday name'),
('%A', calendar.day_name[now[6]], 'full weekday name'),
('%b', calendar.month_abbr[now[1]], 'abbreviated month name'),
('%B', calendar.month_name[now[1]], 'full month name'),
# %c see below
('%d', '%02d' % now[2], 'day of month as number (00-31)'),
('%H', '%02d' % now[3], 'hour (00-23)'),
('%I', '%02d' % clock12, 'hour (01-12)'),
('%j', '%03d' % now[7], 'julian day (001-366)'),
('%m', '%02d' % now[1], 'month as number (01-12)'),
('%M', '%02d' % now[4], 'minute, (00-59)'),
('%p', ampm, 'AM or PM as appropriate'),
('%S', '%02d' % now[5], 'seconds of current time (00-60)'),
('%U', '%02d' % ((now[7] + jan1[6])//7),
'week number of the year (Sun 1st)'),
('%w', '0?%d' % ((1+now[6]) % 7), 'weekday as a number (Sun 1st)'),
('%W', '%02d' % ((now[7] + (jan1[6] - 1)%7)//7),
'week number of the year (Mon 1st)'),
# %x see below
('%X', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
('%y', '%02d' % (now[0]%100), 'year without century'),
('%Y', '%d' % now[0], 'year with century'),
# %Z see below
('%%', '%', 'single percent sign'),
)
nonstandard_expectations = (
# These are standard but don't have predictable output
('%c', fixasctime(time.asctime(now)), 'near-asctime() format'),
('%x', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)),
'%m/%d/%y %H:%M:%S'),
('%Z', '%s' % tz, 'time zone name'),
# These are some platform specific extensions
('%D', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 'mm/dd/yy'),
('%e', '%2d' % now[2], 'day of month as number, blank padded ( 0-31)'),
('%h', calendar.month_abbr[now[1]], 'abbreviated month name'),
('%k', '%2d' % now[3], 'hour, blank padded ( 0-23)'),
('%n', '\n', 'newline character'),
('%r', '%02d:%02d:%02d %s' % (clock12, now[4], now[5], ampm),
'%I:%M:%S %p'),
('%R', '%02d:%02d' % (now[3], now[4]), '%H:%M'),
('%s', nowsecs, 'seconds since the Epoch in UCT'),
('%t', '\t', 'tab character'),
('%T', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
('%3y', '%03d' % (now[0]%100),
'year without century rendered using fieldwidth'),
)
if verbose:
print("Strftime test, platform: %s, Python version: %s" % \
(sys.platform, sys.version.split()[0]))
for e in expectations:
try:
result = time.strftime(e[0], now)
except ValueError as error:
print("Standard '%s' format gave error:" % e[0], error)
continue
if re.match(escapestr(e[1], ampm), result): continue
if not result or result[0] == '%':
print("Does not support standard '%s' format (%s)" % (e[0], e[2]))
else:
print("Conflict for %s (%s):" % (e[0], e[2]))
print(" Expected %s, but got %s" % (e[1], result))
for e in nonstandard_expectations:
try:
result = time.strftime(e[0], now)
except ValueError as result:
if verbose:
print("Error for nonstandard '%s' format (%s): %s" % \
(e[0], e[2], str(result)))
continue
if re.match(escapestr(e[1], ampm), result):
if verbose:
print("Supports nonstandard '%s' format (%s)" % (e[0], e[2]))
elif not result or result[0] == '%':
if verbose:
print("Does not appear to support '%s' format (%s)" % (e[0],
e[2]))
else:
if verbose:
print("Conflict for nonstandard '%s' format (%s):" % (e[0],
e[2]))
print(" Expected %s, but got %s" % (e[1], result))
def fixasctime(s):
if s[8] == ' ':
s = s[:8] + '0' + s[9:]
return s
main()
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