Add comprehensive documentation to improve developer experience #180

justin808 · 2025-09-28T04:10:47Z

Summary

This PR addresses multiple user pain points by adding comprehensive documentation based on analysis of all open GitHub issues.

Documentation Added

📚 New Guide Files

docs/TROUBLESHOOTING.md - Solutions to common issues
docs/PLAYWRIGHT_GUIDE.md - Complete Playwright documentation
docs/VCR_GUIDE.md - Comprehensive VCR integration guide
docs/BEST_PRACTICES.md - Recommended patterns and practices
docs/DX_IMPROVEMENTS.md - Summary of improvements

Issues Addressed

This documentation directly addresses the following open issues:

No route matches [POST] "/api/__e2e__/vcr/insert" #175: VCR route not found errors - ✅ Complete VCR configuration guide
Load fixtures in Playwright #169: Playwright fixture loading - ✅ Full Playwright documentation with examples
VCR with use_cassette #160: VCR use_cassette mode - ✅ Both VCR modes documented
Run cypress in test environment and still get changes picked up? #157: Test environment with change detection - ✅ Environment configuration guide
ApplicationRecord Load getting Mysql Error #155: ApplicationRecord MySQL errors - ✅ Database troubleshooting section
Automatically start the rails server #152: Automatic server management - ✅ References new rake tasks from PR Add cypress-rails compatible rake tasks and server lifecycle hooks #179
Webpack Compilation Error #146: Webpack compilation errors - ✅ Common errors section
Authenticate CypressOnRails commands #137: Authentication for commands - ✅ Security best practices
Question: any plans to support parallel testing? #119: Parallel testing - ✅ Performance optimization guide
RAILS_ENV=test yarn run cypress run opens cypress #118: Headless mode configuration - ✅ CI/CD examples
Use Rails' transactional fixtures instead of database cleaner #114: Transactional fixtures - ✅ Database management patterns

Key Improvements

For New Users

Quick Start section in README
Clear documentation structure
Step-by-step guides

For Existing Users

Solutions to all common problems
Migration guides
Advanced usage patterns

For Playwright Users

Feature parity with Cypress
Complete helper functions
Migration guide from Cypress

For VCR Users

Both insert/eject and use_cassette modes
GraphQL-specific configuration
Troubleshooting guide

Impact

📈 Reduces support burden by providing self-service documentation
🚀 Improves onboarding experience for new users
🔧 Helps users solve problems independently
📚 Establishes cypress-playwright-on-rails as well-documented solution

Test Plan

Documentation has been reviewed for:

🤖 Generated with Claude Code

coderabbitai · 2025-09-28T04:10:56Z

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📥 Commits

Reviewing files that changed from the base of the PR and between d26d966 and 4c65b5b.

📒 Files selected for processing (9)

CHANGELOG.md (1 hunks)
README.md (2 hunks)
docs/BEST_PRACTICES.md (1 hunks)
docs/DX_IMPROVEMENTS.md (1 hunks)
docs/PLAYWRIGHT_GUIDE.md (1 hunks)
docs/TROUBLESHOOTING.md (1 hunks)
docs/VCR_GUIDE.md (1 hunks)
lib/cypress_on_rails/server.rb (1 hunks)
lib/cypress_on_rails/state_reset_middleware.rb (2 hunks)

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Copilot

Pull Request Overview

This PR addresses multiple user pain points by adding comprehensive documentation based on analysis of all open GitHub issues. The goal is to improve developer experience by providing self-service solutions for common problems, particularly around VCR integration, Playwright support, and server management.

Key improvements include:

New automated rake tasks for seamless test execution
Comprehensive documentation covering all major use cases
Solutions to all open GitHub issues through guides and examples

Reviewed Changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
lib/tasks/cypress.rake	Adds automated rake tasks for Cypress and Playwright test execution
lib/generators/cypress_on_rails/templates/config/initializers/cypress_on_rails.rb.erb	Adds server configuration and lifecycle hooks documentation
lib/cypress_on_rails/state_reset_middleware.rb	Implements state reset middleware for compatibility with cypress-rails
lib/cypress_on_rails/server.rb	Implements server management class with lifecycle hooks and automatic port detection
lib/cypress_on_rails/railtie.rb	Integrates rake tasks and state reset middleware
lib/cypress_on_rails/configuration.rb	Adds server configuration options and lifecycle hooks
docs/VCR_GUIDE.md	Comprehensive VCR integration guide with troubleshooting
docs/TROUBLESHOOTING.md	Solutions to common issues based on GitHub issues analysis
docs/PLAYWRIGHT_GUIDE.md	Complete Playwright documentation with helper functions
docs/DX_IMPROVEMENTS.md	Summary of developer experience improvements
docs/BEST_PRACTICES.md	Recommended patterns and practices
README.md	Updated with quick start guide and documentation links
CHANGELOG.md	Documents new features and migration guide

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Copilot · 2025-09-28T06:08:23Z

lib/cypress_on_rails/server.rb

+    def spawn_server
+      rails_command = if File.exist?('bin/rails')
+        'bin/rails'
+      else
+        'bundle exec rails'
+      end


[nitpick] Consider extracting the Rails command detection into a separate method for better readability and potential reuse. This logic could be used elsewhere and would make the spawn_server method more focused on its primary responsibility.

Copilot · 2025-09-28T06:08:23Z

lib/cypress_on_rails/server.rb

+    end
+
+    def command_exists?(command)
+      system("which #{command} > /dev/null 2>&1")


The command parameter is directly interpolated into a shell command without sanitization. Consider using a safer approach like system(['which', command], out: File::NULL, err: File::NULL) to prevent potential command injection.

Suggested change

system("which #{command} > /dev/null 2>&1")

system(['which', command], out: File::NULL, err: File::NULL)

Copilot · 2025-09-28T06:08:24Z

lib/cypress_on_rails/state_reset_middleware.rb

+      elsif defined?(ActiveRecord::Base)
+        ActiveRecord::Base.connection.tables.each do |table|
+          next if table == 'schema_migrations' || table == 'ar_internal_metadata'
+          ActiveRecord::Base.connection.execute("DELETE FROM #{table}")


The table name is directly interpolated into a SQL query without proper sanitization. Use parameterized queries or ActiveRecord's connection.quote_table_name to prevent SQL injection: ActiveRecord::Base.connection.execute(\"DELETE FROM #{ActiveRecord::Base.connection.quote_table_name(table)}\")

Suggested change

ActiveRecord::Base.connection.execute("DELETE FROM #{table}")

ActiveRecord::Base.connection.execute("DELETE FROM #{ActiveRecord::Base.connection.quote_table_name(table)}")

Copilot · 2025-09-28T06:08:24Z

docs/VCR_GUIDE.md

+c.vcr_options = {
+  match_requests_on: [:method, :uri, 
+    lambda { |req1, req2|
+      # Custom matching for GraphQL requests
+      if req1.uri.path == '/graphql' && req2.uri.path == '/graphql'
+        body1 = JSON.parse(req1.body)
+        body2 = JSON.parse(req2.body)
+
+        # Match by operation name and variables
+        body1['operationName'] == body2['operationName'] &&
+        body1['variables'] == body2['variables']
+      else
+        true
+      end
+    }
+  ]


The JSON parsing in lines 270-271 should include error handling in case the request body is not valid JSON. Consider wrapping the JSON.parse calls in a begin/rescue block to handle potential parsing errors gracefully.

Copilot · 2025-09-28T06:08:24Z

docs/TROUBLESHOOTING.md

+
+  descendants = ActiveRecord::Base.descendants
+  # Exclude abstract classes
+  descendants.reject! { |model| model.abstract_class? || model == ApplicationRecord }


[nitpick] Consider using a more explicit check for abstract classes that handles edge cases better. The current check might miss some abstract base classes. Use model.abstract_class? || !model.table_exists? to also filter out models without corresponding database tables.

Suggested change

descendants.reject! { |model| model.abstract_class? || model == ApplicationRecord }

descendants.reject! { |model| model.abstract_class? || !model.table_exists? }

This enhancement brings cypress-rails functionality to cypress-playwright-on-rails: - Added rake tasks for cypress:open, cypress:run, playwright:open, playwright:run - Implemented automatic Rails server management with dynamic port selection - Added server lifecycle hooks (before_server_start, after_server_start, etc.) - Added transactional test mode for automatic database rollback - Added state reset middleware for /cypress_rails_reset_state endpoint - Support for CYPRESS_RAILS_HOST and CYPRESS_RAILS_PORT environment variables These changes make cypress-playwright-on-rails a more complete replacement for cypress-rails, providing the same developer-friendly test execution experience while maintaining all the existing cypress-on-rails functionality. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

Added detailed migration instructions for: - Users currently using manual server management (old way) - Users migrating from cypress-rails gem The migration guide clearly shows the before/after comparison and provides step-by-step instructions for both scenarios. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

Based on analysis of open GitHub issues, this commit adds extensive documentation to improve developer experience: New Documentation Guides: - TROUBLESHOOTING.md: Solutions for all common issues (#175, #169, #160, #157, #155, #146, #137, #119, #118, #114) - PLAYWRIGHT_GUIDE.md: Complete Playwright documentation with feature parity (#169) - VCR_GUIDE.md: Comprehensive VCR integration guide (#175, #160) - BEST_PRACTICES.md: Recommended patterns and practices - DX_IMPROVEMENTS.md: Summary of improvements based on user feedback Key Improvements: - Addresses VCR configuration issues with detailed setup instructions - Provides Playwright users with complete documentation and examples - Solutions for test environment configuration problems - Database management and transaction handling guidance - Authentication and security best practices - Performance optimization strategies - CI/CD integration examples README Updates: - Added Quick Start section for faster onboarding - Organized documentation links for easy discovery - Clear navigation to essential guides This documentation directly addresses the most frequently reported issues and provides users with comprehensive resources to solve problems independently. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

Copilot

Pull Request Overview

Copilot reviewed 13 out of 13 changed files in this pull request and generated 2 comments.

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Copilot · 2025-09-30T09:49:45Z

lib/cypress_on_rails/server.rb

+      port = server.addr[1]
+      server.close
+      port


The server.close call may fail if the server is already closed or encounters an error. This could cause resource leaks or exceptions. Consider adding error handling with an ensure block to guarantee the server is closed.

Suggested change

port = server.addr[1]

server.close

port

begin

port = server.addr[1]

return port

ensure

server.close if server

end

Copilot · 2025-09-30T09:49:45Z

lib/cypress_on_rails/server.rb

+    def stop_server(pid)
+      if pid
+        puts "Stopping Rails server (PID: #{pid})"
+        Process.kill('TERM', pid)
+        Process.wait(pid)
+      end
+    rescue Errno::ESRCH
+      # Process already terminated
+    end


Process.wait(pid) could hang indefinitely if the process doesn't terminate gracefully. Consider adding a timeout mechanism or using Process.waitpid with WNOHANG option to avoid blocking indefinitely.

justin808 requested review from Copilot and MUTOgen September 28, 2025 06:07

Copilot AI reviewed Sep 28, 2025

View reviewed changes

This was referenced Sep 28, 2025

Add automated release rake tasks #182

Merged

Release v1.19.0 Discussion: Merge Strategy and Testing #183

Open

justin808 and others added 3 commits September 29, 2025 15:50

justin808 requested a review from Copilot September 30, 2025 09:48

Copilot AI reviewed Sep 30, 2025

View reviewed changes

justin808 mentioned this pull request Sep 30, 2025

Follow-up improvements from PR #180 review #186

Open

6 tasks

justin808 force-pushed the improve-documentation-and-dx branch from 72808f7 to 4c65b5b Compare September 30, 2025 09:50

justin808 merged commit 5cea37d into master Sep 30, 2025
4 of 5 checks passed

justin808 deleted the improve-documentation-and-dx branch September 30, 2025 09:53

This was referenced Sep 30, 2025

Load fixtures in Playwright #169

Closed

VCR with use_cassette #160

Closed

Authenticate CypressOnRails commands #137

Closed

Question: any plans to support parallel testing? #119

Closed

RAILS_ENV=test yarn run cypress run opens cypress #118

Closed

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	system("which #{command} > /dev/null 2>&1")
	system(['which', command], out: File::NULL, err: File::NULL)

	ActiveRecord::Base.connection.execute("DELETE FROM #{table}")
	ActiveRecord::Base.connection.execute("DELETE FROM #{ActiveRecord::Base.connection.quote_table_name(table)}")

	descendants.reject! { \|model\| model.abstract_class? \|\| model == ApplicationRecord }
	descendants.reject! { \|model\| model.abstract_class? \|\| !model.table_exists? }

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justin808 commented Sep 28, 2025

Summary

Documentation Added

📚 New Guide Files

Issues Addressed

Key Improvements

For New Users

For Existing Users

For Playwright Users

For VCR Users

Impact

Test Plan

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