Overview

Conduct a code reading of RSpec.

Preparation

1. Clone the RSpec repository.

• https://github.com/rspec/rspec-core

Code Reading

1. RSpec Invocation

• rspec/rspec-core/blob/main/exe/rspec#L4
  • Entry point
• lib/rspec/core/runner.rb#L43
  • Calls the class method invoke of the Runner class
  • The disable_autorun method disables the auto-run feature

3. RSpec Execution

• lib/rspec/core/runner.rb#L64
  • Calls the class method run of the Runner
  • The trap_interrupt method handles interruptions like Ctrl+C
  • If there is a runner in options, call; otherwise, new.run
• lib/rspec/core/runner.rb#L85
  • If the test execution ends early, calls the reporting process
  • If not ending early, calls the run_specs method
• lib/rspec/core/runner.rb#L113
  • Sequentially executes tests, reports results, and returns an exit code