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luatz/timetable.lua: Remove unused year_length function
[etc/awesome.git] / spec / timetable_spec.lua
diff --git a/spec/timetable_spec.lua b/spec/timetable_spec.lua
index a80b9ad83a09675e857200a513384f894fe4e44b..6c9617e2c2dcce2a1e59dc94a0f0407c6534568b 100644 (file)
--- 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
-
-               -- Doomsday in Gregorian calendar for 2013 is Thursday.
-               assert.are.same ( 5 , doomsday(2013) )
+       local function native_normalise ( year , month , day )
+               return os.date("*t",os.time{
+                       year = year ;
+                       month = month ;
+                       day = day ;
+               })
+       end
 
 
-               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 )
 
        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 ,
                local function assert_same_wday ( year , month , day )
                        return assert.are.same (
                                native_normalise ( year , month , day ).wday ,
@@ -33,6 +38,11 @@ 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 ( 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 )
        end )
 
        local function native_timestamp ( year , month , day )
@@ -41,11 +51,82 @@ describe ( "Time table library" , function ( )
                                        ) ):read "*l" ) )
        end
 
                                        ) ):read "*l" ) )
        end
 
-       it ( "Timestamp creation is valid" , function ( )
+       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
                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 )
        end)
 end )
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