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before:
this_module = 'posix.time'
global_table = '_G'
M = require(this_module)
specify posix.time:
- context when required:
- it does not touch the global table:
expect(show_apis {added_to=global_table, by=this_module}).
to_equal {}
- before:
EPOCH = M.time()
- describe clock_getres:
- before:
clock_getres = M.clock_getres
- context with bad arguments:
if clock_getres then
badargs.diagnose(clock_getres, "(int)")
end
- it returns a PosixTimespec:
if clock_getres then
expect(prototype(clock_getres(M.CLOCK_REALTIME))).
to_be "PosixTimespec"
end
- describe clock_gettime:
- before:
clock_gettime = M.clock_gettime
- context with bad arguments:
if clock_gettime then
badargs.diagnose(clock_gettime, "(int)")
end
- it returns a PosixTimespec:
if clock_getres then
expect(prototype(clock_gettime(M.CLOCK_REALTIME))).
to_be "PosixTimespec"
end
- describe gmtime:
- before:
gmtime = M.gmtime
- context with bad arguments:
badargs.diagnose(gmtime, "(int)")
- it returns a PosixTm:
expect(prototype(gmtime(EPOCH))).to_be "PosixTm"
- it fetches broken-down time values:
t = gmtime(EPOCH)
fields = {"tm_sec", "tm_min", "tm_hour", "tm_mday",
"tm_mon", "tm_year", "tm_wday", "tm_yday", "tm_isdst"}
if t.tm_gmtoff ~= nil then fields[1+#fields] = "tm_gmtoff" end
if t.tm_zone ~= nil then fields[1+#fields] = "tm_zone" end
expect(t).to_contain.a_permutation_of(fields)
for _, field in pairs(fields) do
if field == "tm_zone" then
expect(type(t[field])).to_be "string"
else
expect(type(t[field])).to_be "number"
if field ~= "tm_gmtoff" then
expect(t[field] >= 0).to_be(true)
else
expect(t[field] == 0).to_be(true)
end
end
end
- it returns a month in the range 0-11:
# A recent December afternoon in epoch seconds...
expect(gmtime(1418734089).tm_mon).to_be(11)
t = gmtime(EPOCH)
expect(t.tm_mon >= 0 and t.tm_mon < 12).to_be(true)
- it returns years since 1900:
expect(gmtime(EPOCH).tm_year < 1900).to_be(true)
- it does not wrap around after 2^31 seconds:
expect(gmtime(2147483647).tm_year).to_be(gmtime(2147483648).tm_year)
- describe localtime:
- before:
localtime = M.localtime
- context with bad arguments:
badargs.diagnose(localtime, "(int)")
- it returns a PosixTm:
expect(prototype(localtime(EPOCH))).to_be "PosixTm"
- it fetches broken-down time values:
t = localtime(EPOCH)
fields = {"tm_sec", "tm_min", "tm_hour", "tm_mday",
"tm_mon", "tm_year", "tm_wday", "tm_yday", "tm_isdst"}
if t.tm_gmtoff ~= nil then fields[1+#fields] = "tm_gmtoff" end
if t.tm_zone ~= nil then fields[1+#fields] = "tm_zone" end
expect(t).to_contain.a_permutation_of(fields)
for _, field in pairs(fields) do
if field == "tm_zone" then
expect(type(t[field])).to_be "string"
else
expect(type(t[field])).to_be "number"
if field ~= "tm_gmtoff" then
expect(t[field] >= 0).to_be(true)
end
end
end
- it returns a month in the range 0-11:
# A recent December afternoon in epoch seconds...
expect(localtime(1418734089).tm_mon).to_be(11)
t = localtime(EPOCH)
expect(t.tm_mon >= 0 and t.tm_mon < 12).to_be(true)
- it returns years since 1900:
expect(localtime(EPOCH).tm_year < 1900).to_be(true)
- it does not wrap around after 2^31 seconds:
expect(localtime(2147483647).tm_year).to_be(localtime(2147483648).tm_year)
- describe mktime:
- before:
mktime = M.mktime
t = M.localtime(EPOCH)
- context with bad arguments:
badargs.diagnose(mktime, "(table)")
- it returns an epoch time:
expect(prototype(mktime(t))).to_be "number"
- it is the inverse of localtime:
expect(mktime(t)).to_be(EPOCH)
- describe nanosleep:
- before:
nanosleep, typeerrors = init(M, "nanosleep")
- context with bad arguments: |
badargs.diagnose(nanosleep, "(table)")
examples {
["context diagnosing timespec table fields"] = {
{
["it diagnoses argument #1 tv_sec field type not integer"] = function()
expect(nanosleep {tv_sec = false}).
to_raise.any_of(typeerrors(1, "integer", "tv_sec", "boolean"))
end
},
{
["it diagnoses argument #1 tv_nsec field type not integer"] = function()
expect(nanosleep {tv_sec = -1, tv_nsec = false}).
to_raise.any_of(typeerrors(1, "integer", "tv_nsec", "boolean"))
end
},
{
["it diagnoses argument #1 spurious fields"] = function()
expect(nanosleep {tv_sec = -1, tv_nsec = -1, bogus = false}).
to_raise.any_of(typeerrors(1, nil, "bogus"))
end
},
}
}
- it returns an integer:
expect(nanosleep {tv_sec = 0, tv_nsec = 10}).to_be(0)
- describe strftime:
- before:
strftime = M.strftime
t = {
tm_isdst=0, tm_wday=1, tm_sec=2, tm_min=3, tm_hour=4,
tm_mday=5, tm_mon=6, tm_year=7, tm_yday=8, tm_gmtoff=-32400,
tm_zone="AKST"
}
- context with bad arguments:
badargs.diagnose(strftime, "(string, table)")
- context with place-holders:
- it plugs tm_wday:
expect(strftime("%w", t)).to_be "1"
- it plugs tm_sec:
expect(strftime("%S", t)).to_be "02"
- it plugs tm_min:
expect(strftime("%M", t)).to_be "03"
- it plugs tm_hour:
expect(strftime("%H", t)).to_be "04"
- it plugs tm_mday:
expect(strftime("%d", t)).to_be "05"
- it plugs tm_mon:
expect(strftime("%m", t)).to_be "07"
- it plugs tm_year:
expect(strftime("%y", t)).to_be "07"
- it plugs tm_yday:
expect(strftime("%j", t)).to_be "009"
- it plugs timezone:
expect(strftime("%Z", t)).to_be "AKST"
- describe strptime:
- before:
strptime = M.strptime
- context with bad arguments:
badargs.diagnose(strptime, "(string, string)")
- context with place-holders:
- before:
t, i = strptime("Mon Jun 4 03:02:01 BST 1906 garbage",
"%a %b %d %H:%M:%S BST %Y")
- it returns the first unconsumed character:
expect(i).to_be(29)
# tm_yday and tm_isdst are not set by strptime
- it scans into tm_wday:
expect(t.tm_wday).to_be(1)
- it scans into tm_sec:
expect(t.tm_sec).to_be(1)
- it scans into tm_min:
expect(t.tm_min).to_be(2)
- it scans into tm_hour:
expect(t.tm_hour).to_be(3)
- it scans into tm_mday:
expect(t.tm_mday).to_be(4)
- it scans into tm_mon:
expect(t.tm_mon).to_be(5)
- it scans into tm_year:
expect(t.tm_year).to_be(6)
- describe time:
- before:
time = M.time
- context with bad arguments:
badargs.diagnose(time, "()")
- it returns epoch seconds:
expect(type(time())).to_be "number"
expect(time() > 0).to_be(true)
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