Remove stale Coveralls integration (#3204)

justin808 · claude · web-flow · commit d3b546e734d6 · 2026-04-28T22:12:19.000-10:00
## Summary - remove the stale Coveralls badge and the dead Coveralls-only rake paths - switch repo and generator coverage support to direct `simplecov` dependencies - update the coverage docs and replace the broken README Slack invite URL so branch checks pass Closes #1692. ## Testing - bundle exec rubocop react_on_rails/Rakefile react_on_rails/Gemfile.development_dependencies react_on_rails/lib/generators/react_on_rails/dev_tests_generator.rb react_on_rails/rakelib/run_rspec.rake react_on_rails/rakelib/shakapacker_examples.rake react_on_rails/spec/react_on_rails/generators/dev_tests_generator_spec.rb react_on_rails_pro/Rakefile react_on_rails_pro/Gemfile.development_dependencies react_on_rails_pro/rakelib/run_rspec.rake - bundle exec rspec react_on_rails/spec/react_on_rails/generators/dev_tests_generator_spec.rb - bundle exec rake -T run_rspec - (cd react_on_rails_pro && bundle exec rake -T run_rspec) - bundle exec rspec react_on_rails/spec/empty_spec.rb - (cd react_on_rails_pro && bundle exec rspec spec/empty_spec.rb)  --- > [!NOTE] > **Low Risk** > Low risk since changes are limited to test/CI tooling and documentation, but could affect coverage reporting if any workflows still expect Coveralls tasks or binstubs. > > **Overview** > Removes the stale Coveralls integration across both OSS and Pro: drops the Coveralls badge, deletes Coveralls-only rake hooks/tasks, and removes Coveralls binstubs from dummy apps. > > Switches coverage support to direct `simplecov` dependencies (including the `dev_tests` generator and lockfiles) and updates docs to clarify that coverage reports are produced when running tests with `COVERAGE=true`. Also updates the React+Rails Slack link to the direct workspace URL. > > <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit 80c86a8. Bugbot is set up for automated code reviews on this repo. Configure [here](https://www.cursor.com/dashboard/bugbot).</sup>   ## Summary by CodeRabbit * **Chores** * Switched test coverage tooling from Coveralls to SimpleCov and removed Coveralls integration/hooks. * **Documentation** * Clarified coverage reports are shown only when running tests with COVERAGE=true. * Removed the Coverage Status badge and updated Slack support links to the direct workspace URL in README and docs.  --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -430,7 +430,7 @@ Run `rake` for testing the gem and `react_on_rails/spec/dummy`. Otherwise, the `
 
 If you run `rspec` at the top level, you'll see this message: `require': cannot load such file -- rails_helper (LoadError)`
 
-After running a test, you can view the coverage results SimpleCov reports by opening `coverage/index.html`.
+If you run tests with `COVERAGE=true`, you can view the SimpleCov report at `coverage/index.html`.
 
 Turbolinks 5 is included in the test app, unless "DISABLE_TURBOLINKS" is set to YES in the environment.
 
diff --git a/README.md b/README.md
@@ -8,7 +8,7 @@
 
 ---
 
-[![License](https://img.shields.io/badge/license-mit-green.svg)](LICENSE.md)[![Gem Version](https://badge.fury.io/rb/react_on_rails.svg)](https://badge.fury.io/rb/react_on_rails) [![npm version](https://badge.fury.io/js/react-on-rails.svg)](https://badge.fury.io/js/react-on-rails) [![Coverage Status](https://coveralls.io/repos/shakacode/react_on_rails/badge.svg?branch=main&service=github)](https://coveralls.io/github/shakacode/react_on_rails?branch=main) [![Gem Downloads](https://img.shields.io/gem/dt/react_on_rails)](https://rubygems.org/gems/react_on_rails)
+[![License](https://img.shields.io/badge/license-mit-green.svg)](LICENSE.md)[![Gem Version](https://badge.fury.io/rb/react_on_rails.svg)](https://badge.fury.io/rb/react_on_rails) [![npm version](https://badge.fury.io/js/react-on-rails.svg)](https://badge.fury.io/js/react-on-rails) [![Gem Downloads](https://img.shields.io/gem/dt/react_on_rails)](https://rubygems.org/gems/react_on_rails)
 
 [![Integration Tests](https://github.com/shakacode/react_on_rails/actions/workflows/integration-tests.yml/badge.svg)](https://github.com/shakacode/react_on_rails/actions/workflows/integration-tests.yml)
 [![Gem Tests](https://github.com/shakacode/react_on_rails/actions/workflows/gem-tests.yml/badge.svg)](https://github.com/shakacode/react_on_rails/actions/workflows/gem-tests.yml)
@@ -115,7 +115,8 @@ Start with the docs here:
 - [GitHub Discussions](https://github.com/shakacode/react_on_rails/discussions)
   for questions
 - [GitHub Issues](https://github.com/shakacode/react_on_rails/issues) for bugs
-- [React + Rails Slack](https://invite.reactrails.com) for community chat
+- [React + Rails Slack](https://reactrails.slack.com) for community chat
+  (existing members; non-members, please use GitHub Discussions above)
 - [Commercial support](mailto:react_on_rails@shakacode.com) for upgrades,
   consulting, and Pro guidance
 - [AI Agent User Guide](AGENTS_USER_GUIDE.md) for AI coding assistants
diff --git a/docs/oss/deployment/troubleshooting.md b/docs/oss/deployment/troubleshooting.md
@@ -484,7 +484,7 @@ console.log(ReactOnRails.registeredComponents());
 
 - **[GitHub Issues](https://github.com/shakacode/react_on_rails/issues)** - Bug reports and feature requests
 - **[GitHub Discussions](https://github.com/shakacode/react_on_rails/discussions)** - Questions and help
-- **[React + Rails Slack](https://invite.reactrails.com)** - Real-time community support
+- **[React + Rails Slack](https://reactrails.slack.com)** - Real-time community support
 
 ### Professional support
 
diff --git a/docs/oss/getting-started/common-issues.md b/docs/oss/getting-started/common-issues.md
@@ -262,5 +262,5 @@ ls -la public/packs/
 1. **Check the detailed [Troubleshooting Guide](../deployment/troubleshooting.md)**
 2. **Search [GitHub Issues](https://github.com/shakacode/react_on_rails/issues)**
 3. **Ask in [GitHub Discussions](https://github.com/shakacode/react_on_rails/discussions)**
-4. **Join [React + Rails Slack](https://invite.reactrails.com)**
+4. **Join [React + Rails Slack](https://reactrails.slack.com)**
 5. **Professional support**: [react_on_rails@shakacode.com](mailto:react_on_rails@shakacode.com)
diff --git a/react_on_rails/Gemfile.development_dependencies b/react_on_rails/Gemfile.development_dependencies
@@ -48,7 +48,7 @@ end
 group :test do
   gem "capybara", "~> 3.40"
   gem "capybara-screenshot"
-  gem "coveralls", require: false
+  gem "simplecov", "~> 0.16.1", require: false
   gem "cypress-on-rails", "~> 1.19"
   gem "equivalent-xml"
   gem "generator_spec"
diff --git a/react_on_rails/Gemfile.lock b/react_on_rails/Gemfile.lock
@@ -119,12 +119,6 @@ GEM
     coderay (1.1.3)
     concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
-    coveralls (0.8.23)
-      json (>= 1.8, < 3)
-      simplecov (~> 0.16.1)
-      term-ansicolor (~> 1.3)
-      thor (>= 0.19.4, < 2.0)
-      tins (~> 1.6)
     crass (1.0.6)
     csv (3.3.5)
     cypress-on-rails (1.20.0)
@@ -401,17 +395,11 @@ GEM
       uri (>= 0.12.0)
     stringio (3.2.0)
     strscan (3.1.0)
-    sync (0.5.0)
-    term-ansicolor (1.8.0)
-      tins (~> 1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     thor (1.5.0)
     tilt (2.3.0)
     timeout (0.6.0)
-    tins (1.33.0)
-      bigdecimal
-      sync
     tsort (0.2.0)
     turbo-rails (2.0.20)
       actionpack (>= 7.1.0)
@@ -448,7 +436,6 @@ DEPENDENCIES
   bootsnap
   capybara (~> 3.40)
   capybara-screenshot
-  coveralls
   cypress-on-rails (~> 1.19)
   debug
   equivalent-xml
@@ -481,6 +468,7 @@ DEPENDENCIES
   sdoc
   selenium-webdriver (= 4.9.0)
   shakapacker (= 9.6.1)
+  simplecov (~> 0.16.1)
   spring (~> 4.0)
   sprockets (~> 4.0)
   sqlite3 (~> 1.6)
diff --git a/react_on_rails/Rakefile b/react_on_rails/Rakefile
@@ -6,12 +6,6 @@
 tasks = %w[lint run_rspec]
 prepare_for_ci = %w[node_package dummy_apps]
 
-if ENV["USE_COVERALLS"] == "TRUE"
-  require "coveralls/rake/task"
-  Coveralls::RakeTask.new
-  tasks << "coveralls:push"
-end
-
 desc "Run all tests and linting"
 task default: tasks
 
diff --git a/react_on_rails/lib/generators/react_on_rails/dev_tests_generator.rb b/react_on_rails/lib/generators/react_on_rails/dev_tests_generator.rb
@@ -41,7 +41,7 @@ def add_test_related_gems_to_gemfile
         gem("rspec-rails", group: :test)
         # NOTE: chromedriver-helper was deprecated in 2019. Modern selenium-webdriver (4.x)
         # and GitHub Actions have built-in driver management, so no driver helper is needed.
-        gem("coveralls", require: false)
+        gem("simplecov", require: false, group: :test)
       end
 
       def replace_prerender_if_server_rendering
diff --git a/react_on_rails/rakelib/run_rspec.rake b/react_on_rails/rakelib/run_rspec.rake
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "coveralls/rake/task" if ENV["USE_COVERALLS"] == "TRUE"
-
 require "pathname"
 require "yaml"
 
@@ -141,8 +139,6 @@ namespace :run_rspec do
     pinned_version_examples.each { |example_type| Rake::Task[example_type.rspec_task_name].invoke }
   end
 
-  Coveralls::RakeTask.new if ENV["USE_COVERALLS"] == "TRUE"
-
   desc "run all tests no examples"
   task all_but_examples: %i[gem dummy_no_turbolinks dummy js_tests] do
     puts "Completed all RSpec tests"
@@ -209,7 +205,6 @@ def run_tests_in(dir, options = {})
   env_tokens = []
   env_tokens << options.fetch(:env_vars, "").strip unless options.fetch(:env_vars, "").strip.empty?
   env_tokens << "TEST_ENV_COMMAND_NAME=\"#{command_name}\""
-  env_tokens << "COVERAGE=true" if ENV["USE_COVERALLS"]
 
   env_vars = env_tokens.join(" ")
   command = "#{env_vars} bundle exec rspec #{rspec_args}"
diff --git a/react_on_rails/rakelib/shakapacker_examples.rake b/react_on_rails/rakelib/shakapacker_examples.rake
@@ -213,7 +213,7 @@ namespace :shakapacker_examples do # rubocop:disable Metrics/BlockLength
       # Use unbundled_sh_in_dir to ensure the generator uses the example app's
       # gem versions, not the parent workspace's cached bundle context.
       unbundled_sh_in_dir(example_type.dir, generator_commands)
-      # Re-run bundle install since dev_tests generator adds rspec-rails and coveralls to Gemfile
+      # Re-run bundle install since dev_tests generator adds rspec-rails and simplecov to Gemfile
       bundle_install_in(example_type.dir)
 
       # Apply specific React version for compatibility testing examples
diff --git a/react_on_rails/spec/dummy/Gemfile.lock b/react_on_rails/spec/dummy/Gemfile.lock
@@ -115,12 +115,6 @@ GEM
     coderay (1.1.3)
     concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
-    coveralls (0.8.23)
-      json (>= 1.8, < 3)
-      simplecov (~> 0.16.1)
-      term-ansicolor (~> 1.3)
-      thor (>= 0.19.4, < 2.0)
-      tins (~> 1.6)
     crass (1.0.6)
     csv (3.3.5)
     cypress-on-rails (1.19.0)
@@ -391,16 +385,11 @@ GEM
       uri (>= 0.12.0)
     stringio (3.2.0)
     strscan (3.1.5)
-    sync (0.5.0)
-    term-ansicolor (1.7.1)
-      tins (~> 1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     thor (1.5.0)
     tilt (2.2.0)
     timeout (0.4.3)
-    tins (1.32.1)
-      sync
     tsort (0.2.0)
     turbo-rails (2.0.6)
       actionpack (>= 6.0.0)
@@ -439,7 +428,6 @@ DEPENDENCIES
   bootsnap
   capybara (~> 3.40)
   capybara-screenshot
-  coveralls
   cypress-on-rails (~> 1.19)
   debug
   equivalent-xml
@@ -471,6 +459,7 @@ DEPENDENCIES
   sdoc
   selenium-webdriver (= 4.9.0)
   shakapacker (= 9.6.1)
+  simplecov (~> 0.16.1)
   spring (~> 4.0)
   sprockets (~> 4.0)
   sqlite3 (~> 1.6)
diff --git a/react_on_rails/spec/dummy/bin/coveralls b/react_on_rails/spec/dummy/bin/coveralls
diff --git a/react_on_rails/spec/react_on_rails/generators/dev_tests_generator_spec.rb b/react_on_rails/spec/react_on_rails/generators/dev_tests_generator_spec.rb
@@ -49,7 +49,7 @@
     it "adds test-related gems to Gemfile" do
       assert_file("Gemfile") do |contents|
         expect(contents).to match("gem \"rspec-rails\", group: :test")
-        expect(contents).to match("gem \"coveralls\", require: false")
+        expect(contents).to match("gem \"simplecov\", require: false, group: :test")
         # chromedriver-helper was removed as it's deprecated since 2019
         # Modern selenium-webdriver (4.x) handles driver management automatically
       end
diff --git a/react_on_rails_pro/CONTRIBUTING.md b/react_on_rails_pro/CONTRIBUTING.md
@@ -347,7 +347,7 @@ bundle exec rspec
 
 If you run `rspec` at the top level, you'll see this message: `require': cannot load such file -- rails_helper (LoadError)`
 
-After running a test, you can view the coverage results in SimpleCov reports by opening `coverage/index.html`.
+If you run tests with `COVERAGE=true`, you can view the SimpleCov report at `coverage/index.html`.
 
 ### Debugging
 
diff --git a/react_on_rails_pro/Gemfile.development_dependencies b/react_on_rails_pro/Gemfile.development_dependencies
@@ -33,33 +33,33 @@ gem "amazing_print"
 
 group :development do
   # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
-  gem 'web-console'
-  gem 'listen'
+  gem "web-console"
+  gem "listen"
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
-  gem 'spring'
-  gem 'spring-watcher-listen'
+  gem "spring"
+  gem "spring-watcher-listen"
 end
 
 group :development, :test do
-  gem 'faker'
-  gem 'graphiql-rails'
-  gem 'pry', '>= 0.14.1' # Console with powerful introspection capabilities
+  gem "faker"
+  gem "graphiql-rails"
+  gem "pry", ">= 0.14.1" # Console with powerful introspection capabilities
   # Need to use master of pry-byebug to use latest pry version
   # Loaded manually in spec_helper.rb so specs can boot on readline-less Ruby builds.
-  gem 'pry-byebug', github: 'shakacode/pry-byebug', require: false # Integrates pry with byebug
-  gem 'pry-doc' # Provide MRI Core documentation
-  gem 'pry-rails' # Causes rails console to open pry. `DISABLE_PRY_RAILS=1 rails c` can still open with IRB
-  gem 'pry-theme' # An easy way to customize Pry colors via theme files
+  gem "pry-byebug", github: "shakacode/pry-byebug", require: false # Integrates pry with byebug
+  gem "pry-doc" # Provide MRI Core documentation
+  gem "pry-rails" # Causes rails console to open pry. `DISABLE_PRY_RAILS=1 rails c` can still open with IRB
+  gem "pry-theme" # An easy way to customize Pry colors via theme files
 
   gem "rbs", require: false
   gem "scss_lint", require: false
-  gem 'fakefs', require: 'fakefs/safe'
+  gem "fakefs", require: "fakefs/safe"
 end
 
 group :test do
   gem "capybara", ">= 3.38.0"
   gem "capybara-screenshot"
-  gem "coveralls", require: false
+  gem "simplecov", "~> 0.16.1", require: false
   gem "equivalent-xml"
   gem "generator_spec"
   gem "launchy"
diff --git a/react_on_rails_pro/Gemfile.lock b/react_on_rails_pro/Gemfile.lock
@@ -149,12 +149,6 @@ GEM
       fiber-annotation
       fiber-local (~> 1.1)
       json
-    coveralls (0.8.23)
-      json (>= 1.8, < 3)
-      simplecov (~> 0.16.1)
-      term-ansicolor (~> 1.3)
-      thor (>= 0.19.4, < 2.0)
-      tins (~> 1.6)
     crack (1.0.0)
       bigdecimal
       rexml
@@ -436,15 +430,9 @@ GEM
     sqlite3 (2.9.2-x86_64-darwin)
     sqlite3 (2.9.2-x86_64-linux-gnu)
     stringio (3.2.0)
-    sync (0.5.0)
-    term-ansicolor (1.11.3)
-      tins (~> 1)
     thor (1.5.0)
     tilt (2.4.0)
     timeout (0.4.4)
-    tins (1.33.0)
-      bigdecimal
-      sync
     traces (0.18.2)
     tsort (0.2.0)
     turbolinks (5.2.1)
@@ -492,7 +480,6 @@ DEPENDENCIES
   capybara (>= 3.38.0)
   capybara-screenshot
   commonmarker
-  coveralls
   equivalent-xml
   fakefs
   faker
@@ -527,6 +514,7 @@ DEPENDENCIES
   scss_lint
   selenium-webdriver (= 4.9.0)
   shakapacker (= 9.6.1)
+  simplecov (~> 0.16.1)
   spring
   spring-watcher-listen
   sprockets
diff --git a/react_on_rails_pro/Rakefile b/react_on_rails_pro/Rakefile
@@ -3,11 +3,6 @@
 # Rake will automatically load any *.rake files inside of the "rakelib" folder
 # See rakelib/
 tasks = %w[run_rspec lint]
-if ENV["USE_COVERALLS"] == "TRUE"
-  require "coveralls/rake/task"
-  Coveralls::RakeTask.new
-  tasks << "coveralls:push"
-end
 
 desc "Run all tests and linting"
 task default: tasks
diff --git a/react_on_rails_pro/rakelib/run_rspec.rake b/react_on_rails_pro/rakelib/run_rspec.rake
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 # TODO: This file is not used for CI
-require "coveralls/rake/task" if ENV["USE_COVERALLS"] == "TRUE"
 
 require "pathname"
 require "active_support/core_ext/string"
@@ -23,13 +22,15 @@ namespace :run_rspec do
     run_tests_in(spec_dummy_dir)
   end
 
-  desc "(HACK) Run RSpec on spec/empty_spec in order to have SimpleCov generate a coverage report from cache"
+  desc "(HACK) Run RSpec on spec/empty_spec.rb — set COVERAGE=true to generate a SimpleCov report from cache"
   task :empty do
-    sh %(#{ENV['USE_COVERALLS'] ? 'COVERAGE=true' : ''} rspec spec/empty_spec.rb)
+    if ENV["COVERAGE"] == "true"
+      sh "bundle exec rspec spec/empty_spec.rb"
+    else
+      puts "Skipping run_rspec:empty (set COVERAGE=true to generate a SimpleCov report from cache)"
+    end
   end
 
-  Coveralls::RakeTask.new if ENV["USE_COVERALLS"] == "TRUE"
-
   desc "run all tests"
   task run_rspec: %i[gem dummy empty js_tests] do
     puts "Completed all RSpec tests"
@@ -71,7 +72,6 @@ def run_tests_in(dir, options = {})
   command_name = options.fetch(:command_name, path.basename)
   rspec_args = options.fetch(:rspec_args, "")
   env_vars = +"#{options.fetch(:env_vars, '')} TEST_ENV_COMMAND_NAME=\"#{command_name}\""
-  env_vars << "COVERAGE=true" if ENV["USE_COVERALLS"]
   sh_in_dir(path.realpath, "#{env_vars} bundle exec rspec #{rspec_args}")
 end
 
diff --git a/react_on_rails_pro/spec/dummy/Gemfile.lock b/react_on_rails_pro/spec/dummy/Gemfile.lock
diff --git a/react_on_rails_pro/spec/dummy/bin/coveralls b/react_on_rails_pro/spec/dummy/bin/coveralls
