X-Git-Url: https://git.madduck.net/etc/awesome.git/blobdiff_plain/3a7693d5c89981e1230d0d49163fc23d02224873..cdaad9ec35371fcfc3b398b7302f1e8fe313b4f6:/spec/timetable_spec.lua diff --git a/spec/timetable_spec.lua b/spec/timetable_spec.lua index a72a0f9..6c9617e 100644 --- a/spec/timetable_spec.lua +++ b/spec/timetable_spec.lua @@ -1,24 +1,29 @@ -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) ) - - assert.are.same ( 3 , doomsday(1967) ) - assert.are.same ( 5 , doomsday(1968) ) + 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 ( "Get day of week correct" , function ( ) - local function native_normalise ( year , month , day ) - return os.date("*t",os.time{ - year = year ; - month = month ; - day = day ; - }) - 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 , @@ -33,5 +38,95 @@ describe ( "Time table library" , function ( ) 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 )