1# $NetBSD: varmod-localtime.mk,v 1.13 2023/06/01 20:56:35 rillig Exp $
2#
3# Tests for the :localtime variable modifier, which formats a timestamp
4# using strftime(3) in local time.
5#
6# See also:
7#	varmod-gmtime.mk
8
9.if ${TZ:Uno:NEurope/Berlin:NUTC-1} != ""	# see unit-tests/Makefile
10.  error
11.endif
12
13# Test for the default time format, %c.  Since the time always varies, it's
14# only possible to check for the general format here.  The names of the
15# month and weekday are always in English, independent from the locale.
16# Example: Thu Oct 29 18:56:41 2020
17.if ${:U:localtime:tW:M??? ??? ?? ??\:??\:?? ????} == ""
18.  error
19.endif
20
21
22# modifier name too short, falling back to the SysV modifier.
23.if ${%Y:L:localtim=1593536400} != "%Y"
24.  error
25.endif
26
27
28# 2020-07-01T00:00:00Z
29.if ${%Y:L:localtime=1593536400} != "2020"
30.  error
31.endif
32
33
34# modifier name too long, falling back to the SysV modifier.
35.if ${%Y:L:localtimer=1593536400} != "%Y"
36.  error
37.endif
38
39
40# If the modifier name is not matched exactly, fall back to the
41# :from=to modifier.
42.if ${localtime:L:local%=gm%} != "gmtime"
43.  error
44.endif
45
46
47# Before var.c 1.1050 from 2023-05-09, it was not possible to pass the
48# seconds via a variable expression.
49.if ${%Y:L:localtime=${:U1593536400}} != "2020"
50.  error
51.endif
52
53
54# Before var.c 1.631 from 2020-10-31 21:40:20, it was possible to pass
55# negative time stamps to the :localtime modifier, resulting in dates before
56# 1970.  Going back 50 years in the past is not a practical use case for
57# make.  Therefore, since var.c 1.631, negative time stamps produce a
58# parse error.
59# expect+2: Invalid time value "-1"
60# expect+1: Malformed conditional (${:L:localtime=-1} != "")
61.if ${:L:localtime=-1} != ""
62.  error
63.else
64.  error
65.endif
66
67
68# Spaces were allowed before var.c 1.631 from 2020-10-31 21:40:20, not
69# because it would make sense but just as a side-effect from using strtoul.
70# expect+2: Invalid time value " 1"
71# expect+1: Malformed conditional (${:L:localtime= 1} != "")
72.if ${:L:localtime= 1} != ""
73.  error
74.else
75.  error
76.endif
77
78
79# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent.
80# Since "now" constantly changes, the strongest possible test is to match the
81# resulting pattern.
82.if !${:L:localtime=0:tW:M??? ??? ?? ??\:??\:?? 20??}
83.  error
84.endif
85
86
87.if ${:L:localtime=1} != "Thu Jan  1 01:00:01 1970"
88.  error
89.endif
90
91
92# INT32_MAX
93.if ${:L:localtime=2147483647} != "Tue Jan 19 04:14:07 2038"
94.  error
95.endif
96
97
98.if ${:L:localtime=2147483648} == "Tue Jan 19 04:14:08 2038"
99# All systems that have unsigned time_t or 64-bit time_t.
100.elif ${:L:localtime=2147483648} == "Fri Dec 13 21:45:52 1901"
101# FreeBSD-12.0-i386 still has 32-bit signed time_t, see
102# sys/x86/include/_types.h, __LP64__.
103#
104# Linux on 32-bit systems may still have 32-bit signed time_t, see
105# sysdeps/unix/sysv/linux/generic/bits/typesizes.h, __TIMESIZE.
106.else
107.  error
108.endif
109
110
111# Integer overflow, at least before var.c 1.631 from 2020-10-31.
112# Because this modifier is implemented using strtoul, the parsed time was
113# ULONG_MAX, which got converted to -1.  This resulted in a time stamp of
114# the second before 1970.
115#
116# Since var.c 1.631 from 2020-10-31, the overflow is detected and produces a
117# parse error.
118# expect+2: Invalid time value "10000000000000000000000000000000"
119# expect+1: Malformed conditional (${:L:localtime=10000000000000000000000000000000} != "")
120.if ${:L:localtime=10000000000000000000000000000000} != ""
121.  error
122.else
123.  error
124.endif
125
126# Before var.c 1.631 from 2020-10-31, there was no error handling while
127# parsing the :localtime modifier, thus no error message was printed.  Parsing
128# stopped after the '=', and the remaining string was parsed for more variable
129# modifiers.  Because of the unknown modifier 'e' from the 'error', the whole
130# variable value was discarded and thus not printed.
131# expect+2: Invalid time value "error"
132# expect+1: Malformed conditional (${:L:localtime=error} != "")
133.if ${:L:localtime=error} != ""
134.  error
135.else
136.  error
137.endif
138
139# Before var.c 1.1050 from 2023-05-09, the timestamp could be directly
140# followed by the next modifier, without a ':' separator.  This was the same
141# bug as for the ':L' and ':P' modifiers.
142# expect+2: Invalid time value "100000S,1970,bad,"
143# expect+1: Malformed conditional (${%Y:L:localtime=100000S,1970,bad,} != "bad")
144.if ${%Y:L:localtime=100000S,1970,bad,} != "bad"
145.  error
146.endif
147
148all:
149