Rubocop rules

.rubocop/rspec.yml

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+# Cross-Repository conguration for Cops of the rubocop-rspec extension
+
+RSpec:
+  Include:
+    - spec/**/*
+
+RSpec/ExampleLength:
+  # Topic on how to structure the specs is whole separate thing. When
+  # we want to reduce let/before to improve redablity, then block length
+  # cannot stay low. See comments on "MultipleExpectations".
+  Enabled: false
+
+RSpec/MultipleExpectations:
+  # Disable check for multiple Expectations in single specs. Forcing
+  # single assertion requires repeated specs, which might slow down
+  # legacy test suites. Also this forces heavey extraction into
+  # separate lets/before which itself causes readablity issues.
+  # Please refer to https://thoughtbot.com/blog/lets-not
+  Enabled: false
+
+RSpec/MultipleMemoizedHelpers:
+  # Current legacy codebase uses a lot of helpers in RSpec. Please see comment
+  # for RSpec/MultipleExpectations why this is not a good thing. For now
+  # "lets" (hehe) relax this rule.
+  Max: 35
+
+RSpec/NestedGroups:
+  # Legacy codebase. Relax for now to avoid heavy refactoring.
+  Max: 7