summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_strftime.py
blob: c713d05cc0c699b908fb035f7e073fab002c201a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
#! /usr/bin/env python

# Sanity checker for time.strftime

import time, calendar, sys, string, os, re
from test_support import verbose

def main():
    global verbose
    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 strftest(now):
    if verbose:
        print "strftime test for", time.ctime(now)
    nowsecs = str(long(now))[:-1]
    gmt = time.gmtime(now)
    now = time.localtime(now)

    if now[3] < 12: ampm='AM'
    else: ampm='PM'

    jan1 = time.localtime(time.mktime((now[0], 1, 1) + (0,)*6))

    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

    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, string.split(sys.version)[0])

    for e in expectations:
        try:
            result = time.strftime(e[0], now)
        except ValueError, error:
            print "Standard '%s' format gave error:" % e[0], error
            continue
        if re.match(e[1], 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, result:
            if verbose:
                print "Error for nonstandard '%s' format (%s): %s" % \
                      (e[0], e[2], str(result))
            continue
        if re.match(e[1], 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()