[types/ci] simplecov + rspec-retry

CHANGELOG.md

@@ -14,6 +14,9 @@
   - (steep + rbs) officialy supported `RBS` with a `Steep` integration that works
   in **strict mode** (see `sig` directory, `Steepfile` config, `sig/manifest.yml` and `rbs_collection.yml` for dependencies);
   - Added `TypeCheck` step to CI/CD;
+- Test coverage checks (via `simplecov` with `html` and `lcov` formats).
+  Temporary locked on `~95%` and without CI integration cuz we need to refactor tests in first;
+- CI: `rspec-retry` is temporary added until the tests are fully refactored;
 
 ## [1.12.1]
 ### Changed

Gemfile

@@ -11,4 +11,7 @@ gem 'pry', require: false
 gem 'rake', require: false
 gem 'rbs', require: false
 gem 'rspec', require: false
+gem 'rspec-retry', require: false # NOTE: temporary decision for non-refactored tests
+gem 'simplecov', require: false
+gem 'simplecov-lcov', require: false
 gem 'steep', require: false

Gemfile.lock

@@ -39,6 +39,7 @@ GEM
     connection_pool (2.4.1)
     csv (3.3.0)
     diff-lcs (1.5.1)
+    docile (1.4.1)
     drb (2.2.1)
     ffi (1.17.0)
     ffi (1.17.0-aarch64-linux-gnu)
@@ -94,6 +95,8 @@ GEM
     rspec-mocks (3.13.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
+    rspec-retry (0.6.2)
+      rspec-core (> 3.3)
     rspec-support (3.13.1)
     rubocop (1.68.0)
       json (~> 2.3)
@@ -128,6 +131,13 @@ GEM
       rubocop-rspec (~> 3, >= 3.0.1)
     ruby-progressbar (1.13.0)
     securerandom (0.4.0)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov-lcov (0.8.0)
+    simplecov_json_formatter (0.1.4)
     steep (1.8.3)
       activesupport (>= 5.1)
       concurrent-ruby (>= 1.1.10)
@@ -173,6 +183,9 @@ DEPENDENCIES
   rbs
   redis_queued_locks!
   rspec
+  rspec-retry
+  simplecov
+  simplecov-lcov
   steep
 
 BUNDLED WITH

spec/redis_queued_locks_spec.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # NOTE:
-#   - these specs will be totally reworked;
+#   - these specs will be totally reworked (this is a reason of using rspec-retry);
 #   - this code is not ideal and final,
 #     it is written only for behavior testing and funcionality checking;
 RSpec.describe RedisQueuedLocks do

spec/setup_simplecov.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'simplecov'
+require 'simplecov-lcov'
+
+SimpleCov::Formatter::LcovFormatter.config do |config|
+  config.report_with_single_file = true
+  config.output_directory = 'coverage'
+  config.lcov_file_name = 'lcov.info'
+end
+
+SimpleCov.configure do
+  enable_coverage :line
+  enable_coverage :branch
+  primary_coverage :line
+
+  # NOTE: temporary percents which are based on non-refactored tests
+  minimum_coverage line: 93, branch: 69 # TODO: { line: 100, branch: 100 }
+
+  formatter SimpleCov::Formatter::MultiFormatter.new([
+    SimpleCov::Formatter::HTMLFormatter,
+    SimpleCov::Formatter::LcovFormatter
+  ])
+  add_filter '/spec/'
+end

spec/spec_helper.rb

@@ -1,10 +1,19 @@
 # frozen_string_literal: true
 
-require 'redis_queued_locks'
+require_relative 'setup_simplecov'
+
+SimpleCov.start
+
+require 'rspec/retry'
 require 'pry'
-require 'securerandom'
+require 'redis_queued_locks'
 
 RSpec.configure do |config|
+  # NOTE: (github-ci) (rspec-retry) temporary decision for non-refactored tests
+  config.verbose_retry = true # (rspec-retry)
+  config.display_try_failure_messages = true # (rspec-retry)
+  config.default_retry_count = 5 # (rsec-retry)
+
   Kernel.srand config.seed
   config.order = :random
   config.filter_run_when_matching :focus