doc/timetable: Document `normalise` fractional behaviour

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

diff --git a/spec/timetable_spec.lua b/spec/timetable_spec.lua
index 34c05295992d0e2dba03768a5e5acce52de62f84..569864fc8beba43faeee83a8a036fcce84c9bc86 100644 (file)
--- a/spec/timetable_spec.lua
+++ b/spec/timetable_spec.lua
@@ -84,4 +84,24 @@ describe ( "Timetable library" , function ( )
                assert.same ( { timetable.normalise(2013,42,52,0,0,0) } , { 2016,7,22,0,0,0 } )
                assert.same ( { timetable.normalise(2013,42,52,50,0,0) } , { 2016,7,24,2,0,0 } )
        end )
                assert.same ( { timetable.normalise(2013,42,52,0,0,0) } , { 2016,7,22,0,0,0 } )
                assert.same ( { timetable.normalise(2013,42,52,50,0,0) } , { 2016,7,24,2,0,0 } )
        end )

+
+       it ( "#normalise handles fractional #month" , function ( )
+               assert.same ( { timetable.normalise(2014,14.5,1,0,0,0) } , { 2015,2,15,0,0,0 } )
+               assert.same ( { timetable.normalise(2015,14.5,1,0,0,0) } , { 2016,2,15,12,0,0 } ) -- leap year, so hours is 12
+               assert.same ( { timetable.normalise(2016,14.5,1,0,0,0) } , { 2017,2,15,0,0,0 } )
+       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 )

 end )
 end )