1 """
2 Unittest for time.strftime
3 """
4
5 import calendar
6 import sys
7 import re
8 from test import support
9 import time
10 import unittest
11
12
13 # helper functions
14 def fixasctime(s):
15 if s[8] == ' ':
16 s = s[:8] + '0' + s[9:]
17 return s
18
19 def escapestr(text, ampm):
20 """
21 Escape text to deal with possible locale values that have regex
22 syntax while allowing regex syntax used for comparison.
23 """
24 new_text = re.escape(text)
25 new_text = new_text.replace(re.escape(ampm), ampm)
26 new_text = new_text.replace(r'\%', '%')
27 new_text = new_text.replace(r'\:', ':')
28 new_text = new_text.replace(r'\?', '?')
29 return new_text
30
31
32 class ESC[4;38;5;81mStrftimeTest(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
33
34 def _update_variables(self, now):
35 # we must update the local variables on every cycle
36 self.gmt = time.gmtime(now)
37 now = time.localtime(now)
38
39 if now[3] < 12: self.ampm='(AM|am)'
40 else: self.ampm='(PM|pm)'
41
42 self.jan1 = time.localtime(time.mktime((now[0], 1, 1, 0, 0, 0, 0, 1, 0)))
43
44 try:
45 if now[8]: self.tz = time.tzname[1]
46 else: self.tz = time.tzname[0]
47 except AttributeError:
48 self.tz = ''
49
50 if now[3] > 12: self.clock12 = now[3] - 12
51 elif now[3] > 0: self.clock12 = now[3]
52 else: self.clock12 = 12
53
54 self.now = now
55
56 def setUp(self):
57 from locale import setlocale, LC_TIME
58 saved_locale = setlocale(LC_TIME)
59 setlocale(LC_TIME, 'C')
60 self.addCleanup(setlocale, LC_TIME, saved_locale)
61
62 def test_strftime(self):
63 now = time.time()
64 self._update_variables(now)
65 self.strftest1(now)
66 self.strftest2(now)
67
68 if support.verbose:
69 print("Strftime test, platform: %s, Python version: %s" % \
70 (sys.platform, sys.version.split()[0]))
71
72 for j in range(-5, 5):
73 for i in range(25):
74 arg = now + (i+j*100)*23*3603
75 self._update_variables(arg)
76 self.strftest1(arg)
77 self.strftest2(arg)
78
79 def strftest1(self, now):
80 if support.verbose:
81 print("strftime test for", time.ctime(now))
82 now = self.now
83 # Make sure any characters that could be taken as regex syntax is
84 # escaped in escapestr()
85 expectations = (
86 ('%a', calendar.day_abbr[now[6]], 'abbreviated weekday name'),
87 ('%A', calendar.day_name[now[6]], 'full weekday name'),
88 ('%b', calendar.month_abbr[now[1]], 'abbreviated month name'),
89 ('%B', calendar.month_name[now[1]], 'full month name'),
90 # %c see below
91 ('%d', '%02d' % now[2], 'day of month as number (00-31)'),
92 ('%H', '%02d' % now[3], 'hour (00-23)'),
93 ('%I', '%02d' % self.clock12, 'hour (01-12)'),
94 ('%j', '%03d' % now[7], 'julian day (001-366)'),
95 ('%m', '%02d' % now[1], 'month as number (01-12)'),
96 ('%M', '%02d' % now[4], 'minute, (00-59)'),
97 ('%p', self.ampm, 'AM or PM as appropriate'),
98 ('%S', '%02d' % now[5], 'seconds of current time (00-60)'),
99 ('%U', '%02d' % ((now[7] + self.jan1[6])//7),
100 'week number of the year (Sun 1st)'),
101 ('%w', '0?%d' % ((1+now[6]) % 7), 'weekday as a number (Sun 1st)'),
102 ('%W', '%02d' % ((now[7] + (self.jan1[6] - 1)%7)//7),
103 'week number of the year (Mon 1st)'),
104 # %x see below
105 ('%X', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
106 ('%y', '%02d' % (now[0]%100), 'year without century'),
107 ('%Y', '%d' % now[0], 'year with century'),
108 # %Z see below
109 ('%%', '%', 'single percent sign'),
110 )
111
112 for e in expectations:
113 # mustn't raise a value error
114 try:
115 result = time.strftime(e[0], now)
116 except ValueError as error:
117 self.fail("strftime '%s' format gave error: %s" % (e[0], error))
118 if re.match(escapestr(e[1], self.ampm), result):
119 continue
120 if not result or result[0] == '%':
121 self.fail("strftime does not support standard '%s' format (%s)"
122 % (e[0], e[2]))
123 else:
124 self.fail("Conflict for %s (%s): expected %s, but got %s"
125 % (e[0], e[2], e[1], result))
126
127 def strftest2(self, now):
128 nowsecs = str(int(now))[:-1]
129 now = self.now
130
131 nonstandard_expectations = (
132 # These are standard but don't have predictable output
133 ('%c', fixasctime(time.asctime(now)), 'near-asctime() format'),
134 ('%x', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)),
135 '%m/%d/%y %H:%M:%S'),
136 ('%Z', '%s' % self.tz, 'time zone name'),
137
138 # These are some platform specific extensions
139 ('%D', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 'mm/dd/yy'),
140 ('%e', '%2d' % now[2], 'day of month as number, blank padded ( 0-31)'),
141 ('%h', calendar.month_abbr[now[1]], 'abbreviated month name'),
142 ('%k', '%2d' % now[3], 'hour, blank padded ( 0-23)'),
143 ('%n', '\n', 'newline character'),
144 ('%r', '%02d:%02d:%02d %s' % (self.clock12, now[4], now[5], self.ampm),
145 '%I:%M:%S %p'),
146 ('%R', '%02d:%02d' % (now[3], now[4]), '%H:%M'),
147 ('%s', nowsecs, 'seconds since the Epoch in UCT'),
148 ('%t', '\t', 'tab character'),
149 ('%T', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
150 ('%3y', '%03d' % (now[0]%100),
151 'year without century rendered using fieldwidth'),
152 )
153
154
155 for e in nonstandard_expectations:
156 try:
157 result = time.strftime(e[0], now)
158 except ValueError as result:
159 msg = "Error for nonstandard '%s' format (%s): %s" % \
160 (e[0], e[2], str(result))
161 if support.verbose:
162 print(msg)
163 continue
164 if re.match(escapestr(e[1], self.ampm), result):
165 if support.verbose:
166 print("Supports nonstandard '%s' format (%s)" % (e[0], e[2]))
167 elif not result or result[0] == '%':
168 if support.verbose:
169 print("Does not appear to support '%s' format (%s)" % \
170 (e[0], e[2]))
171 else:
172 if support.verbose:
173 print("Conflict for nonstandard '%s' format (%s):" % \
174 (e[0], e[2]))
175 print(" Expected %s, but got %s" % (e[1], result))
176
177
178 class ESC[4;38;5;81mY1900Tests(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
179 """A limitation of the MS C runtime library is that it crashes if
180 a date before 1900 is passed with a format string containing "%y"
181 """
182
183 def test_y_before_1900(self):
184 # Issue #13674, #19634
185 t = (1899, 1, 1, 0, 0, 0, 0, 0, 0)
186 if (sys.platform == "win32"
187 or sys.platform.startswith(("aix", "sunos", "solaris"))):
188 with self.assertRaises(ValueError):
189 time.strftime("%y", t)
190 else:
191 self.assertEqual(time.strftime("%y", t), "99")
192
193 def test_y_1900(self):
194 self.assertEqual(
195 time.strftime("%y", (1900, 1, 1, 0, 0, 0, 0, 0, 0)), "00")
196
197 def test_y_after_1900(self):
198 self.assertEqual(
199 time.strftime("%y", (2013, 1, 1, 0, 0, 0, 0, 0, 0)), "13")
200
201 if __name__ == '__main__':
202 unittest.main()