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package chronos
import (
"testing"
"time"
)
func mktime(y int, month time.Month, d, h, min int) time.Time {
return time.Date(y, month, d, h, min, 0, 0, time.Local)
}
func TestChronos(t *testing.T) {
tbl := []struct {
start time.Time
end time.Time
unit TimeUnit
count uint
now time.Time
want time.Time
}{
{mktime(1991, 4, 30, 0, 0), nilTime, Year, 1, mktime(2013, 8, 26, 13, 37), mktime(2014, 4, 30, 0, 0)},
{mktime(2013, 1, 1, 0, 0), nilTime, Year, 0, mktime(2013, 8, 26, 13, 37), nilTime},
{mktime(2013, 1, 1, 0, 0), nilTime, Year, 0, mktime(2012, 1, 1, 0, 0), mktime(2013, 1, 1, 0, 0)},
{mktime(1900, 12, 24, 12, 34), nilTime, Year, 5, mktime(2013, 8, 26, 13, 37), mktime(2015, 12, 24, 12, 34)},
{mktime(1900, 12, 24, 12, 34), mktime(2010, 1, 1, 1, 1), Year, 5, mktime(2013, 8, 26, 13, 37), nilTime},
{mktime(2013, 8, 1, 4, 2), nilTime, Week, 3, mktime(2013, 8, 26, 13, 37), mktime(2013, 9, 12, 4, 2)},
{mktime(2013, 8, 26, 13, 37), nilTime, Year, 0, mktime(2013, 8, 26, 13, 37), mktime(2013, 8, 26, 13, 37)},
{mktime(2013, 8, 25, 13, 37), nilTime, Day, 1, mktime(2013, 8, 26, 13, 37), mktime(2013, 8, 26, 13, 37)},
}
for i, e := range tbl {
have := Chronos{e.start, e.end, Frequency{e.unit, e.count}}.NextAfter(e.now)
if !have.Equal(e.want) {
t.Errorf("#%d: Want: %s, Have: %s", i, e.want, have)
}
}
}
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