close #177: handle unfinished arrivals

[Enchufa2]

No description provided.

[codecov]

Codecov Report

Merging #178 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #178      +/-   ##
==========================================
+ Coverage   99.83%   99.83%   +<.01%     
==========================================
  Files          50       50              
  Lines        2947     2973      +26     
==========================================
+ Hits         2942     2968      +26     
  Misses          5        5

Impacted Files	Coverage Δ
R/simmer-methods.R	100% <ø> (ø)	⬆️
inst/include/simmer/simulator.h	100% <100%> (ø)	⬆️
inst/include/simmer/resource/preemptive.h	100% <100%> (ø)	⬆️
inst/include/simmer/process/arrival_impl.h	100% <100%> (ø)	⬆️
inst/include/simmer/process/arrival.h	100% <100%> (ø)	⬆️
inst/include/simmer/activity/leave.h	100% <100%> (ø)	⬆️
R/trajectory-class.R	98.8% <100%> (+0.01%)	⬆️
R/trajectory-activities.R	100% <100%> (ø)	⬆️
src/activity.cpp	100% <100%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 173ee82...473dcc0. Read the comment docs.