xref: /freebsd/contrib/bmake/unit-tests/varmod-localtime.mk (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1# $NetBSD: varmod-localtime.mk,v 1.7 2020/12/22 07:22:39 rillig Exp $
2#
3# Tests for the :localtime variable modifier, which formats a timestamp
4# using strftime(3) in local time.
5
6.if ${TZ} != "Europe/Berlin"	# see unit-tests/Makefile
7.  error
8.endif
9
10# Test for the default time format, %c.  Since the time always varies, it's
11# only possible to check for the general format here.  The names of the
12# month and weekday are always in English, independent from the locale.
13# Example: Thu Oct 29 18:56:41 2020
14.if ${:U:localtime:tW:M??? ??? ?? ??\:??\:?? ????} == ""
15.  error
16.endif
17
18
19# modifier name too short, falling back to the SysV modifier.
20.if ${%Y:L:localtim=1593536400} != "%Y"
21.  error
22.endif
23
24
25# 2020-07-01T00:00:00Z
26.if ${%Y:L:localtime=1593536400} != "2020"
27.  error
28.endif
29
30
31# modifier name too long, falling back to the SysV modifier.
32.if ${%Y:L:localtimer=1593536400} != "%Y"
33.  error
34.endif
35
36
37# If the modifier name is not matched exactly, fall back to the
38# :from=to modifier.
39.if ${gmtime:L:gm%=local%} != "localtime"
40.  error
41.endif
42
43
44# As of 2020-08-16, it is not possible to pass the seconds via a
45# variable expression.  This is because parsing of the :localtime
46# modifier stops at the '$' and returns to ApplyModifiers.
47#
48# There, a colon would be skipped but not a dollar.
49# Parsing therefore continues at the '$' of the ${:U159...}, looking
50# for an ordinary variable modifier.
51#
52# At this point, the ${:U} is expanded and interpreted as a variable
53# modifier, which results in the error message "Unknown modifier '1'".
54#
55# If ApplyModifier_Localtime were to pass its argument through
56# ParseModifierPart, this would work.
57#
58# XXX: Where does the empty line 4 in varmod-localtime.exp come from?
59# TODO: Remove the \n from "Invalid time value: %s\n" in var.c.
60.if ${%Y:L:localtime=${:U1593536400}} != "mtime=11593536400}"
61.  error
62.endif
63
64
65# Before var.c 1.631 from 2020-10-31 21:40:20, it was possible to pass
66# negative time stamps to the :localtime modifier, resulting in dates before
67# 1970.  Going back 50 years in the past is not a practical use case for
68# make.  Therefore, since var.c 1.631, negative time stamps produce a
69# parse error.
70.if ${:L:localtime=-1} != ""
71.  error
72.else
73.  error
74.endif
75
76
77# Spaces were allowed before var.c 1.631, not because it would make sense
78# but just as a side-effect from using strtoul.
79.if ${:L:localtime= 1} != ""
80.  error
81.endif
82
83
84# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent.
85# Since "now" constantly changes, the strongest possible test is to match the
86# resulting pattern.
87.if !${:L:localtime=0:tW:M??? ??? ?? ??\:??\:?? 20??}
88.  error
89.endif
90
91
92.if ${:L:localtime=1} != "Thu Jan  1 01:00:01 1970"
93.  error
94.endif
95
96
97# INT32_MAX
98.if ${:L:localtime=2147483647} != "Tue Jan 19 04:14:07 2038"
99.  error
100.endif
101
102
103.if ${:L:localtime=2147483648} == "Tue Jan 19 04:14:08 2038"
104# All systems that have unsigned time_t or 64-bit time_t.
105.elif ${:L:localtime=2147483648} != "Fri Dec 13 21:45:52 1901"
106# FreeBSD-12.0-i386 still has 32-bit signed time_t.
107.else
108.  error
109.endif
110
111
112# Integer overflow, at least before var.c 1.631 from 2020-10-31.
113# Because this modifier is implemented using strtoul, the parsed time was
114# ULONG_MAX, which got converted to -1.  This resulted in a time stamp of
115# the second before 1970.
116#
117# Since var.c 1.631, the overflow is detected and produces a parse error.
118.if ${:L:localtime=10000000000000000000000000000000} != ""
119.  error
120.else
121.  error
122.endif
123
124# Before var.c 1.631 from 2020-10-31, there was no error handling while
125# parsing the :localtime modifier, thus no error message is printed.  Parsing
126# stopped after the '=', and the remaining string was parsed for more variable
127# modifiers.  Because of the unknown modifier 'e' from the 'error', the whole
128# variable value was discarded and thus not printed.
129.if ${:L:localtime=error} != ""
130.  error
131.else
132.  error
133.endif
134
135
136all:
137