-describe ( "Time table library" , function ( )
- local timetable = require "timetable"
+describe("Timetable library", function()
+ local timetable = require "luatz.timetable"
- it ( "Doomsday calculation" , function ( )
- local doomsday = timetable.doomsday
+ local function native_normalise(year, month, day)
+ return os.date("*t",os.time {
+ year = year;
+ month = month;
+ day = day;
+ })
+ end
- -- Doomsday in Gregorian calendar for 2013 is Thursday.
- assert.are.same ( 5 , doomsday(2013) )
+ it("#is_leap is correct", function()
+ assert.same(false, timetable.is_leap(1))
+ assert.same(false, timetable.is_leap(3))
+ assert.same(true , timetable.is_leap(4))
+ assert.same(true , timetable.is_leap(2000))
+ assert.same(true , timetable.is_leap(2004))
+ assert.same(true , timetable.is_leap(2012))
+ assert.same(false, timetable.is_leap(2013))
+ assert.same(false, timetable.is_leap(2014))
+ assert.same(false, timetable.is_leap(2100))
+ assert.same(true , timetable.is_leap(2400))
+ end)
- assert.are.same ( 3 , doomsday(1967) )
- assert.are.same ( 5 , doomsday(1968) )
- end )
+ it("#normalise gets #wday (day of week) correct", function()
- it ( "Get day of week correct" , function ( )
- local function native_normalise ( tbl )
- return os.date("*t",os.time(tbl))
+ local function assert_same_wday(year, month, day)
+ return assert.are.same(
+ native_normalise(year, month, day).wday,
+ timetable.new(year, month, day):normalise().wday
+ )
end
- local tbl = {
- year = 2013 ;
- month = 7 ;
- day = 23 ;
- }
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=24
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=25
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=26
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=27
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=28
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- tbl.day=29
- assert.are.same ( native_normalise ( tbl ).wday , timetable.normalise ( tbl ).wday )
- end )
-end )
+
+ assert_same_wday(2013, 7, 23)
+ assert_same_wday(2013, 7, 24)
+ assert_same_wday(2013, 7, 25)
+ assert_same_wday(2013, 7, 26)
+ assert_same_wday(2013, 7, 27)
+ assert_same_wday(2013, 7, 28)
+ assert_same_wday(2013, 7, 29)
+ assert_same_wday(2014, 1, 1)
+ assert_same_wday(2014, 1, 6)
+ assert_same_wday(2016, 2, 28)
+ assert_same_wday(2016, 2, 29)
+ assert_same_wday(2016, 3, 1)
+ end)
+
+ local function native_timestamp(year, month, day)
+ return assert(tonumber(assert(io.popen(
+ string.format('date -u -d "%d-%d-%d" +%%s', year, month, day)
+ )):read "*l"))
+ end
+
+ it("#timestamp creation is valid", function()
+ for y=1950,2013 do
+ for m=1,12 do
+ assert.same(native_timestamp(y,m,1), timetable.timestamp(y,m,1,0,0,0))
+ end
+ end
+ end)
+
+ it("#normalise handles out of range days in a year", function()
+ assert.same({2014,1,1,0,0,0}, {timetable.normalise(2013,1,366,0,0,0)})
+ assert.same({2014,2,4,0,0,0}, {timetable.normalise(2013,1,400,0,0,0)})
+ assert.same({2017,2,3,0,0,0}, {timetable.normalise(2016,1,400,0,0,0)})
+ assert.same({2016,3,5,0,0,0}, {timetable.normalise(2015,1,430,0,0,0)})
+ assert.same({2017,3,5,0,0,0}, {timetable.normalise(2016,1,430,0,0,0)})
+ assert.same({2027,5,18,0,0,0}, {timetable.normalise(2000,1,10000,0,0,0)})
+ assert.same({29379,1,25,0,0,0}, {timetable.normalise(2000,1,10000000,0,0,0)})
+ end)
+
+ it("#normalise handles out of range days in a #month", function()
+ assert.same({2012,12,1,0,0,0}, {timetable.normalise(2013,0,1,0,0,0)})
+ assert.same({2016,6,1,0,0,0}, {timetable.normalise(2013,42,1,0,0,0)})
+
+ -- Correct behaviour around leap days
+ assert.same({2012,3,23,0,0,0}, {timetable.normalise(2012,2,52,0,0,0)})
+ assert.same({2013,3,24,0,0,0}, {timetable.normalise(2013,2,52,0,0,0)})
+
+ assert.same({2012,2,27,0,0,0}, {timetable.normalise(2012,3,-2,0,0,0)})
+ assert.same({2013,2,26,0,0,0}, {timetable.normalise(2013,3,-2,0,0,0)})
+
+ -- Also when more fields are out of range
+ assert.same({2016,7,22,0,0,0}, {timetable.normalise(2013,42,52,0,0,0)})
+ assert.same({2016,7,24,2,0,0}, {timetable.normalise(2013,42,52,50,0,0)})
+ end)
+
+ it("#normalise handles fractional #month", function()
+ assert.same({2015,2,15,0,0,0}, {timetable.normalise(2014,14.5,1,0,0,0)})
+ assert.same({2016,2,15,12,0,0}, {timetable.normalise(2015,14.5,1,0,0,0)}) -- leap year, so hours is 12
+ assert.same({2017,2,15,0,0,0}, {timetable.normalise(2016,14.5,1,0,0,0)})
+ end)
+
+ it("#normalise handles negative carry (issue #10)", function()
+ assert.same({1970,01,01,00,59,00}, {timetable.normalise(1970,01,01,01,00,-60)})
+ assert.same({1970,01,01,00,58,58}, {timetable.normalise(1970,01,01,01,00,-62)})
+ assert.same({1969,12,31,23,55,58}, {timetable.normalise(1970,01,01,01,-63,-62)})
+ assert.same({2017,02,3,0,0,0}, {timetable.normalise(2017,02,13,0,-14400,0)})
+ end)
+
+ it("#normalise handles negative day carry (issue #13)", function()
+ assert.same({2016,11,30,00,00,00}, {timetable.normalise(2016,12,0,0,0,0)})
+ assert.same({2017,11,30,00,00,00}, {timetable.normalise(2017,12,0,0,0,0)})
+ assert.same({2018,11,30,00,00,00}, {timetable.normalise(2018,12,0,0,0,0)})
+ end)
+
+ local function round_trip_add(t, field, x)
+ local before = t:clone()
+ t[field]=t[field]+x;
+ t:normalise();
+ t[field]=t[field]-x;
+ t:normalise();
+ assert.same(0, t-before)
+ end
+ it("#normalise round trips", function()
+ round_trip_add(timetable.new(2000,2,28,0,0,0), "month", 0.5)
+ round_trip_add(timetable.new(2014,8,28,19,23,0), "month", 0.4)
+ round_trip_add(timetable.new(2014,14.5,28,0,0,0), "month", 0.4)
+ end)
+
+ it("#rfc_3339 works with fractional milliseconds", function()
+ -- on lua 5.3 this used to throw an error due to milliseconds not being an integer
+ timetable.new_from_timestamp(1415141759.999911111):rfc_3339()
+ end)
+
+ it("#rfc_3339 doesn't round seconds up to 60 (issue #4)", function()
+ assert.same("2014-11-04T22:55:59.999", timetable.new_from_timestamp(1415141759.999911111):rfc_3339())
+ assert.same("1970-01-01T00:00:59.999", timetable.new_from_timestamp(59.9999999):rfc_3339())
+ assert.same("1969-12-31T23:59:59.999", timetable.new_from_timestamp(-0.001):rfc_3339())
+ assert.same("1969-12-31T23:59:00.000", timetable.new_from_timestamp(-59.9999999):rfc_3339())
+ end)
+end)