Adding microsend precision changes the result

[towhans]

Both these tests pass which is kind of weird. They should yield the same results but don't. Adding microsend precision changes the result.

test "check cron expression for minute overlap w/ micro" do
    assert get_next_run_date(%Crontab.CronExpression{minute: [16]}, ~N[2002-01-13 23:16:00.00]) == {:ok, ~N[2002-01-14 00:16:00]}
end

test "check cron expression for minute overlap w/o micto" do
    assert get_next_run_date(%Crontab.CronExpression{minute: [16]}, ~N[2002-01-13 23:16:00]) == {:ok, ~N[2002-01-13 23:16:00]}
end 

Maybe the root cause can is this:

iex(3)>  ~N[2002-01-13 23:16:00.00] ==  ~N[2002-01-13 23:16:00]
false

[towhans]

This seems to work:

iex(4)> NaiveDateTime.compare(  ~N[2002-01-13 23:16:00.00] ,  ~N[2002-01-13 23:16:00] )
:eq

[maennchen]

@towhans Thanks for the report. I see where the error comes from. There is a wrong pattern match for the clean_date function.

https://github.com/jshmrtn/crontab/blob/master/lib/crontab/scheduler.ex#L289

[maennchen]

@towhans Could you check if the PR #46 solves the issue for you?