editoast: use serial_test

[Wadjetz]

close #5886
#6200 Before

#After

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bf6da3d) 27.66% compared to head (75c7d19) 27.66%.

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #6249      +/-   ##
============================================
- Coverage     27.66%   27.66%   -0.01%     
  Complexity     2136     2136              
============================================
  Files           990      990              
  Lines        125902   125902              
  Branches       2575     2575              
============================================
- Hits          34832    34831       -1     
- Misses        89580    89581       +1     
  Partials       1490     1490              

Flag	Coverage Δ
core	78.88% <ø> (ø)
editoast	75.58% <100.00%> (-0.01%)	⬇️
front	8.70% <ø> (ø)
gateway	2.50% <ø> (ø)
railjson_generator	87.42% <ø> (ø)
tests	81.77% <ø> (ø)

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[shenriotpro]

Thanks for the PR. I'm a bit skeptical for reasons I explained in #5886. Sorry I didn't notice earlier.

[Castavo]

I'm also surprised that 175 tests need to be serialsed

For some of them we could do as for the rolling stocks and change the hard coded string which break unicity constraints I believe

Also, have you considered creating several serial "threads" (like described in the docs) ?
I feel like not all tests which are serialized here need to be isolated from all other tests.

[shenriotpro]

Thanks

[Tguisnet]

lgtm !

[ElysaSrc]

LGTM