[SR-Users] Unexpected behavior on tmrec with monthly recurrence

[David Gonçalves]

During our tests with yearly scenarios, we think we found two unexpected
behaviors.

First, on the documentation, it is indicated that months can have a value
between 1-12. However, we think that acceptable values can be between 0-11.

Second, we tested a yearly recurrence on the last day of the month (e.g.,
31 of December, 30 of November). With a valid timestamp, we always obtain
not match on tmrec.
We tested the penultimate day of the month (e.g., 30 of December, 29 of
November) and, both days work with a valid timestamp.

With these scenarios, it seems that the monthly and yearly problems always
occur with the last occurrence of an event.

On Tue, Feb 25, 2020 at 11:56 AM David Gonçalves <
david.goncalves at itcenter.com.pt> wrote:

> Hi,
>
> During some tests with the module tmrec, we stumble upon an unexpected
> behavior of the monthly recurrence with days of the week.
> The last week does not match our expected date.
> For example, the last  Monday of  March 2020 is day 30 (fifth Monday of
> the month) however, neither the 5MO or -1MO configuration on the bday
> parameter match with a timestamp configured to day 30. The same situation
> is verified on months with only 4 weeks.
>
> To easily explain the behavior we create this configuration:
>
> $var(ts)="1584355625"; # Monday, March 16, 2020 10:47:05
> if(tmrec_match("20200101T090000|PT8H|monthly||1|3MO||||","$(var(ts){s.int})"))
> {
>     xlog("L_INFO","Epoch $var(ts) matches with 3MO\n");
> }else{
>     xlog("L_INFO","Epoch $var(ts) doesn't match with 3MO\n");
> }
>
> $var(ts)="1584960425"; #  Monday, March 23, 2020 10:47:05
> if(tmrec_match("20200101T090000|PT8H|monthly||1|4MO||||","$(var(ts){s.int})"))
> {
>     xlog("L_INFO","Epoch $var(ts) matches with 4MO\n");
> }else{
>     xlog("L_INFO","Epoch $var(ts) doesn't match with 4MO\n");
> }
>
> $var(ts)="1585565225"; #  Monday, March 30, 2020 10:47:05
> if(tmrec_match("20200101T090000|PT8H|monthly||1|5MO||||","$(var(ts){s.int
> })")){
>     xlog("L_INFO","Epoch $var(ts) matches with 5MO\n");
> }else{
>     xlog("L_INFO","Epoch $var(ts) doesn't match with 5MO\n");
> }
>
> $var(ts)="1584960425"; #  Monday, March 23, 2020 10:47:05
> if(tmrec_match("20200101T090000|PT8H|monthly||1|-1MO||||","$(var(ts){s.int
> })")){
>     xlog("L_INFO","Epoch $var(ts) matches with -1MO\n");
> }else{
>     xlog("L_INFO","Epoch $var(ts) doesn't match with -1MO\n");
> }
>
> The results were:
> Epoch 1584355625 matches with 3MO
> Epoch 1584960425 matches with 4MO
> Epoch 1585565225 doesn't match with 5MO
> Epoch 1584960425 matches with -1MO
>
> Are we configuring the tmrec_match wrongly?
>
> --
>
>
> Cumprimentos / Best regards,
>
> *David Gonçalves*
> Research and Development Technician
>
> Phone: +351 256 370 980
> Email: david.goncalves at itcenter.com.pt
>
>
>
>
>

-- 


Cumprimentos / Best regards,

*David Gonçalves*
Research and Development Technician

Phone: +351 256 370 980
Email: david.goncalves at itcenter.com.pt
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