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0ff42b12d7bbccb894a2f0143481dcb10278afc9
[etc/awesome.git] / spec / timetable_spec.lua
1 describe ( "Timetable library" , function ( )
2         local timetable = require "luatz.timetable"
3
4         local function native_normalise ( year , month , day )
5                 return os.date("*t",os.time{
6                         year = year ;
7                         month = month ;
8                         day = day ;
9                 })
10         end
11
12         it ( "#is_leap is correct" , function ( )
13                 assert.same ( false , timetable.is_leap ( 1 ) )
14                 assert.same ( false , timetable.is_leap ( 3 ) )
15                 assert.same ( true  , timetable.is_leap ( 4 ) )
16                 assert.same ( true  , timetable.is_leap ( 2000 ) )
17                 assert.same ( true  , timetable.is_leap ( 2004 ) )
18                 assert.same ( true  , timetable.is_leap ( 2012 ) )
19                 assert.same ( false , timetable.is_leap ( 2013 ) )
20                 assert.same ( false , timetable.is_leap ( 2014 ) )
21                 assert.same ( false , timetable.is_leap ( 2100 ) )
22                 assert.same ( true  , timetable.is_leap ( 2400 ) )
23         end )
24
25         it ( "#normalise gets #wday (day of week) correct" , function ( )
26
27                 local function assert_same_wday ( year , month , day )
28                         return assert.are.same (
29                                 native_normalise ( year , month , day ).wday ,
30                                 timetable.new ( year , month , day ):normalise().wday
31                         )
32                 end
33
34                 assert_same_wday ( 2013 , 7 , 23 )
35                 assert_same_wday ( 2013 , 7 , 24 )
36                 assert_same_wday ( 2013 , 7 , 25 )
37                 assert_same_wday ( 2013 , 7 , 26 )
38                 assert_same_wday ( 2013 , 7 , 27 )
39                 assert_same_wday ( 2013 , 7 , 28 )
40                 assert_same_wday ( 2013 , 7 , 29 )
41                 assert_same_wday ( 2014 , 1 , 1 )
42                 assert_same_wday ( 2014 , 1 , 6 )
43                 assert_same_wday ( 2016 , 2 , 28 )
44         end )
45
46         local function native_timestamp ( year , month , day )
47                 return assert ( tonumber ( assert ( io.popen (
48                                                 string.format('date -u -d "%d-%d-%d" +%%s', year , month , day )
49                                         ) ):read "*l" ) )
50         end
51
52         it ( "#timestamp creation is valid" , function ( )
53                 for y=1950,2013 do
54                         for m=1,12 do
55                                 assert.same ( native_timestamp ( y,m,1 ) , timetable.timestamp(y,m,1,0,0,0) )
56                         end
57                 end
58         end )
59
60         it ( "#normalise handles out of range days in a #month" , function ( )
61                 assert.same ( { timetable.normalise(2013,0,1,0,0,0) } , { 2012,12,1,0,0,0 } )
62                 assert.same ( { timetable.normalise(2013,42,1,0,0,0) } , { 2016,6,1,0,0,0 } )
63
64                 -- Correct behaviour around leap days
65                 assert.same ( { timetable.normalise(2012,2,52,0,0,0) } , { 2012,3,23,0,0,0 } )
66                 assert.same ( { timetable.normalise(2013,2,52,0,0,0) } , { 2013,3,24,0,0,0 } )
67
68                 assert.same ( { timetable.normalise(2012,3,-2,0,0,0) } , { 2012,2,26,0,0,0 } )
69                 assert.same ( { timetable.normalise(2013,3,-2,0,0,0) } , { 2013,2,27,0,0,0 } )
70
71                 -- Also when more fields are out of range
72                 assert.same ( { timetable.normalise(2013,42,52,0,0,0) } , { 2016,7,22,0,0,0 } )
73                 assert.same ( { timetable.normalise(2013,42,52,50,0,0) } , { 2016,7,24,2,0,0 } )
74         end )
75 end )