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COPYING: Update year
[etc/awesome.git] / spec / timetable_spec.lua
index 653645921fbbc5aa876b66304b6f2b4ece8c7c33..3713391eb305e4052e2f4658090186260b450516 100644 (file)
-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)