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 try:
58 import java
59 java.util.Locale.setDefault(java.util.Locale.US)
60 except ImportError:
61 from locale import setlocale, LC_TIME
62 saved_locale = setlocale(LC_TIME)
63 setlocale(LC_TIME, 'C')
64 self.addCleanup(setlocale, LC_TIME, saved_locale)
65
66 def test_strftime(self):
67 now = time.time()
68 self._update_variables(now)
69 self.strftest1(now)
70 self.strftest2(now)
71
72 if support.verbose:
73 print("Strftime test, platform: %s, Python version: %s" % \
74 (sys.platform, sys.version.split()[0]))
75
76 for j in range(-5, 5):
77 for i in range(25):
78 arg = now + (i+j*100)*23*3603
79 self._update_variables(arg)
80 self.strftest1(arg)
81 self.strftest2(arg)
82
83 def strftest1(self, now):
84 if support.verbose:
85 print("strftime test for", time.ctime(now))
86 now = self.now
87 # Make sure any characters that could be taken as regex syntax is
88 # escaped in escapestr()
89 expectations = (
90 ('%a', calendar.day_abbr[now[6]], 'abbreviated weekday name'),
91 ('%A', calendar.day_name[now[6]], 'full weekday name'),
92 ('%b', calendar.month_abbr[now[1]], 'abbreviated month name'),
93 ('%B', calendar.month_name[now[1]], 'full month name'),
94 # %c see below
95 ('%d', '%02d' % now[2], 'day of month as number (00-31)'),
96 ('%H', '%02d' % now[3], 'hour (00-23)'),
97 ('%I', '%02d' % self.clock12, 'hour (01-12)'),
98 ('%j', '%03d' % now[7], 'julian day (001-366)'),
99 ('%m', '%02d' % now[1], 'month as number (01-12)'),
100 ('%M', '%02d' % now[4], 'minute, (00-59)'),
101 ('%p', self.ampm, 'AM or PM as appropriate'),
102 ('%S', '%02d' % now[5], 'seconds of current time (00-60)'),
103 ('%U', '%02d' % ((now[7] + self.jan1[6])//7),
104 'week number of the year (Sun 1st)'),
105 ('%w', '0?%d' % ((1+now[6]) % 7), 'weekday as a number (Sun 1st)'),
106 ('%W', '%02d' % ((now[7] + (self.jan1[6] - 1)%7)//7),
107 'week number of the year (Mon 1st)'),
108 # %x see below
109 ('%X', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
110 ('%y', '%02d' % (now[0]%100), 'year without century'),
111 ('%Y', '%d' % now[0], 'year with century'),
112 # %Z see below
113 ('%%', '%', 'single percent sign'),
114 )
115
116 for e in expectations:
117 # mustn't raise a value error
118 try:
119 result = time.strftime(e[0], now)
120 except ValueError as error:
121 self.fail("strftime '%s' format gave error: %s" % (e[0], error))
122 if re.match(escapestr(e[1], self.ampm), result):
123 continue
124 if not result or result[0] == '%':
125 self.fail("strftime does not support standard '%s' format (%s)"
126 % (e[0], e[2]))
127 else:
128 self.fail("Conflict for %s (%s): expected %s, but got %s"
129 % (e[0], e[2], e[1], result))
130
131 def strftest2(self, now):
132 nowsecs = str(int(now))[:-1]
133 now = self.now
134
135 nonstandard_expectations = (
136 # These are standard but don't have predictable output
137 ('%c', fixasctime(time.asctime(now)), 'near-asctime() format'),
138 ('%x', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)),
139 '%m/%d/%y %H:%M:%S'),
140 ('%Z', '%s' % self.tz, 'time zone name'),
141
142 # These are some platform specific extensions
143 ('%D', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 'mm/dd/yy'),
144 ('%e', '%2d' % now[2], 'day of month as number, blank padded ( 0-31)'),
145 ('%h', calendar.month_abbr[now[1]], 'abbreviated month name'),
146 ('%k', '%2d' % now[3], 'hour, blank padded ( 0-23)'),
147 ('%n', '\n', 'newline character'),
148 ('%r', '%02d:%02d:%02d %s' % (self.clock12, now[4], now[5], self.ampm),
149 '%I:%M:%S %p'),
150 ('%R', '%02d:%02d' % (now[3], now[4]), '%H:%M'),
151 ('%s', nowsecs, 'seconds since the Epoch in UCT'),
152 ('%t', '\t', 'tab character'),
153 ('%T', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'),
154 ('%3y', '%03d' % (now[0]%100),
155 'year without century rendered using fieldwidth'),
156 )
157
158
159 for e in nonstandard_expectations:
160 try:
161 result = time.strftime(e[0], now)
162 except ValueError as result:
163 msg = "Error for nonstandard '%s' format (%s): %s" % \
164 (e[0], e[2], str(result))
165 if support.verbose:
166 print(msg)
167 continue
168 if re.match(escapestr(e[1], self.ampm), result):
169 if support.verbose:
170 print("Supports nonstandard '%s' format (%s)" % (e[0], e[2]))
171 elif not result or result[0] == '%':
172 if support.verbose:
173 print("Does not appear to support '%s' format (%s)" % \
174 (e[0], e[2]))
175 else:
176 if support.verbose:
177 print("Conflict for nonstandard '%s' format (%s):" % \
178 (e[0], e[2]))
179 print(" Expected %s, but got %s" % (e[1], result))
180
181
182 class ESC[4;38;5;81mY1900Tests(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
183 """A limitation of the MS C runtime library is that it crashes if
184 a date before 1900 is passed with a format string containing "%y"
185 """
186
187 def test_y_before_1900(self):
188 # Issue #13674, #19634
189 t = (1899, 1, 1, 0, 0, 0, 0, 0, 0)
190 if (sys.platform == "win32"
191 or sys.platform.startswith(("aix", "sunos", "solaris"))):
192 with self.assertRaises(ValueError):
193 time.strftime("%y", t)
194 else:
195 self.assertEqual(time.strftime("%y", t), "99")
196
197 def test_y_1900(self):
198 self.assertEqual(
199 time.strftime("%y", (1900, 1, 1, 0, 0, 0, 0, 0, 0)), "00")
200
201 def test_y_after_1900(self):
202 self.assertEqual(
203 time.strftime("%y", (2013, 1, 1, 0, 0, 0, 0, 0, 0)), "13")
204
205 if __name__ == '__main__':
206 unittest.main()