Rakefile in clerk-sdk-ruby-4.0.0.beta3 vs Rakefile in clerk-sdk-ruby-4.0.0.beta4

@@ -1,12 +1,56 @@
 # frozen_string_literal: true
 
 require "bundler/gem_tasks"
-require "rake/testtask"
+require "standard/rake"
 
-Rake::TestTask.new(:test) do |t|
-  t.libs << "test"
-  t.libs << "lib"
-  t.test_files = FileList["test/**/*_test.rb"]
+################################
+# COVERAGE
+################################
+
+desc "Open coverage report"
+task(:cov) { system "open coverage/index.html" }
+
+################################
+# TESTING
+################################
+
+desc "Run all tests"
+task spec: "spec:all"
+
+namespace :spec do
+  task(:all) { system "bundle exec rspec" }
+
+  desc "Run tests on file changes"
+  task(:watch) { system "bundle exec guard -g spec" }
+
+  desc "Run failed tests only"
+  task(:failed) { system "bundle exec rspec --only-failures" }
 end
 
-task default: :test
+################################
+# PLAYGROUND APPLICATIONS
+################################
+
+namespace :app do
+  desc "Run Rails (full stack) application"
+  task rails: "rails:full"
+
+  namespace :rails do
+    task :full do
+      cd ("apps/rails-full") { system "bin/rails server" }
+    end
+
+    desc "Run Rails (API only) application"
+    task :api do
+      cd ("apps/rails-api") { system "bin/rails server" }
+    end
+  end
+
+  desc "Run Rack application"
+  task(:rack) { system "rerun --dir lib,apps/rack --pattern '**/*.{rb,ru}' -- bundle exec puma apps/rack/config.ru -p 3000" }
+
+  desc "Run Sinatra application"
+  task(:sinatra) { system "rerun --dir lib,apps/sinatra --pattern '**/*.{erb,rb,ru}' -- bundle exec puma apps/sinatra/config.ru -p 3000 -v" }
+end
+
+