Bug 23974: (follow-up) Add same day loan tests

Bug 23974: (follow-up) Add same day loan tests

Hourly loans can be short enough to not cross a day boundary and as such
we should test for that scenario in the hour_between tests too.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>