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Move `src` to `luatz` subdirectory to make development paths simpler
[etc/awesome.git] / spec / timetable_spec.lua
1 describe ( "Time table library" , function ( )
2         local timetable = require "luatz.timetable"
3
4         it ( "Doomsday calculation" , function ( )
5                 local doomsday = timetable.doomsday
6
7                 -- Doomsday in Gregorian calendar for 2013 is Thursday.
8                 assert.are.same ( 5 , doomsday(2013) )
9
10                 assert.are.same ( 3 , doomsday(1967) )
11                 assert.are.same ( 5 , doomsday(1968) )
12         end )
13
14         local function native_normalise ( year , month , day )
15                 return os.date("*t",os.time{
16                         year = year ;
17                         month = month ;
18                         day = day ;
19                 })
20         end
21
22         it ( "Get day of week correct" , function ( )
23
24                 local function assert_same_wday ( year , month , day )
25                         return assert.are.same (
26                                 native_normalise ( year , month , day ).wday ,
27                                 timetable.new ( year , month , day ):normalise().wday
28                         )
29                 end
30
31                 assert_same_wday ( 2013 , 7 , 23 )
32                 assert_same_wday ( 2013 , 7 , 24 )
33                 assert_same_wday ( 2013 , 7 , 25 )
34                 assert_same_wday ( 2013 , 7 , 26 )
35                 assert_same_wday ( 2013 , 7 , 27 )
36                 assert_same_wday ( 2013 , 7 , 28 )
37                 assert_same_wday ( 2013 , 7 , 29 )
38         end )
39
40         local function native_timestamp ( year , month , day )
41                 return assert ( tonumber ( assert ( io.popen (
42                                                 string.format('date -u -d "%d-%d-%d" +%%s', year , month , day )
43                                         ) ):read "*l" ) )
44         end
45
46         it ( "Timestamp creation is valid" , function ( )
47                 for y=1950,2013 do
48                         for m=1,12 do
49                                 assert.same ( native_timestamp ( y,m,1 ) , timetable.timestamp(y,m,1,0,0,0) )
50                         end
51                 end
52         end )
53
54         it ( "Out of range month is normalised" , function ( )
55                 assert.same ( { timetable.normalise(2013,0,1,0,0,0) } , { 2012,12,1,0,0,0 } )
56         end )
57 end )