describe("Timetable library", function() local timetable = require "luatz.timetable" local function native_normalise(year, month, day) return os.date("*t",os.time { year = year; month = month; day = day; }) end 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) it("#normalise gets #wday (day of week) correct", function() 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 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)