File sync from hanakai-rb/repo-sync

Updated files:

- spec/support/rspec.rb

Author: github-actions[bot]

spec/support/rspec.rb

@@ -17,4 +17,12 @@
   config.define_derived_metadata do |meta|
     meta[:aggregate_failures] = true
   end
+
+  if ENV['CI']
+    # No focused specs should be committed. This ensures
+    # builds fail when this happens.
+    config.before(:each, :focus) do
+      raise StandardError, "You've committed a focused spec!"
+    end
+  end
 end