luatz/timetable: Use sakamoto's algorithm instead of doomsday algorithm

[etc/awesome.git] / spec / timetable_spec.lua

diff --git a/spec/timetable_spec.lua b/spec/timetable_spec.lua
index 653645921fbbc5aa876b66304b6f2b4ece8c7c33..c81308ecaee261623e260e6e82d0e4921c08deb4 100644 (file)
--- a/spec/timetable_spec.lua
+++ b/spec/timetable_spec.lua
@@ -1,37 +1,50 @@
 describe ( "Time table library" , function ( )
-       local timetable = require "timetable"
+       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 ( "Get 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.are.same ( 3 , doomsday(1967) )
-               assert.are.same ( 5 , doomsday(1968) )
+               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 )
        end )
 
-       it ( "Get day of week correct" , function ( )
-               local function native_normalise ( tbl )
-                       return os.date("*t",os.time(tbl))
+       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
-               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 )
+
+       it ( "Out of range month is normalised" , function ( )
+               assert.same ( { timetable.normalise(2013,0,1,0,0,0) } , { 2012,12,1,0,0,0 } )
        end )
 end )