test: split tests with directories

.github/workflows/test.yml

@@ -58,6 +58,8 @@ jobs:
 
         client: ['active_record', 'redis']
 
+        pattern: ['functional', 'support', 'unit']
+
     env: # $BUNDLE_GEMFILE must be set at the job level, so it is set for all steps
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
 
@@ -79,10 +81,11 @@ jobs:
           $POSTGRES_DB
 
     - name: Run tests
-      run: bundle exec rake
+      run: bundle exec rake spec
       env:
         # The hostname used to communicate with the PostgreSQL service container
         POSTGRES_HOST: localhost
         # The default PostgreSQL port
         POSTGRES_PORT: 5432
         CLIENT: ${{ matrix.client }}
+        PATTERN: spec/${{ matrix.pattern }}/*_spec.rb

Rakefile

@@ -6,7 +6,7 @@ require 'rubocop/rake_task'
 Dir["lib/tasks/*.rake"].each { |rake| load rake }
 
 RSpec::Core::RakeTask.new(:spec) do |spec|
-  spec.pattern = 'spec/**/*_spec.rb'
+  spec.pattern = ENV['PATTERN'] || 'spec/**/*_spec.rb'
   spec.rspec_opts = ['--backtrace']
 end