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metadata_conditional_hooks

🔀 Conditional Hooks via Metadata and prepend/append​

Improve hook control by scoping them to metadata tags and fine-tuning execution order with prepend: true or append: true. This helps when certain specs need extra setup or cleanup.

# spec/rails_helper.rb
RSpec.configure do |config|
  # Run DB cleaner before JS-tagged examples and ensure it runs first
  config.before(:each, js: true, prepend: true) do
    DatabaseCleaner.strategy = :truncation
    DatabaseCleaner.start
  end

  # Switch back to transaction strategy for non-JS examples
  config.before(:each, js: false) do
    DatabaseCleaner.strategy = :transaction
    DatabaseCleaner.start
  end

  # Always cleanup after any example
  config.after(:each, append: true) do
    DatabaseCleaner.clean
  end
end

Here:

  • js: true metadata lets you target feature specs needing JavaScript.
  • prepend: true ensures the truncation strategy is set before any other before hooks.
  • append: true makes cleanup run after all other after hooks, avoiding stray data.

Combine metadata with selective hooks to tailor setup/teardown per example group or tag.