Optimize factory usage for analytics summary serializer (!229041) · Merge requests · GitLab.org / GitLab

What does this MR do and why?

This MR replaces create with build_stubbed in spec/serializers/analytics_summary_serializer_spec.rb to optimize the factory usage as recommended in our handbook. This spec is part of the list .rubocop_todo/rspec/factory_bot/avoid_create.yml. It was verified that database persistence is not needed using the factory doctor command FDOC=1 bin/rspec spec/serializers/analytics_summary_serializer_spec.rb.

Factory Usage Optimization Results

Before optimization:

Factory time: 1.225s (6.02% of total time)

After optimization:

Factory time: 0.037s (0.22% of total time)

🚀 Improvement:

Factory time reduced by: 1.188s
Factory time percentage reduced by: 5.8%
Overall factory usage improvement: 97.0%

Factory Doctor Output

[TEST PROF INFO] FactoryDoctor enabled (event: "sql.active_record", threshold: 0.01)
Run options: include {:focus=>true}

All examples were filtered out; ignoring {:focus=>true}
==> Using precompiled Gitaly binaries from cache

Test environment set up in 1.1017660000070464 seconds
....[TEST PROF INFO] FactoryDoctor report

Total (potentially) bad examples: 4
Total wasted time: 00:01.261

AnalyticsSummarySerializer (./spec/serializers/analytics_summary_serializer_spec.rb:5) (9 records created, 00:01.261)
  generates payload for single object (./spec/serializers/analytics_summary_serializer_spec.rb:24) – 2 records created, 00:00.468
  contains important elements of AnalyticsStage (./spec/serializers/analytics_summary_serializer_spec.rb:28) – 2 records created, 00:00.040
  does not include unit (./spec/serializers/analytics_summary_serializer_spec.rb:32) – 2 records created, 00:00.040
  contains unit (./spec/serializers/analytics_summary_serializer_spec.rb:44) – 3 records created, 00:00.711




Finished in 14.36 seconds (files took 13.66 seconds to load)
4 examples, 0 failures

[TEST PROF INFO] Time spent in factories: 00:01.267 (6.97% of total time)

Factory time before the update

[TEST PROF INFO] Time spent in factories: 00:01.225 (6.02% of total time)

Factory time after update

[TEST PROF INFO] Time spent in factories: 00:00.037 (0.22% of total time)

This MR also adds the missing feature category in this spec.

References

Relates to: #378910.

MR acceptance checklist

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Optimize factory usage for analytics summary serializer