Using Consul’s authorization matcher with RSpec 2.x on Rails 3.x can fail because of version incompatibilities. Compatibility requires adapting the matcher setup.

Capybara and selenium-webdriver version mismatches can break element interaction with a private select method error. Aligning gem versions avoids the API incompatibility.

hash_including in WebMock v3.0.1 compares query values as strings, so integer expectations fail unless the request matcher uses '1' instead of 1.

Copy a single MySQL table between deployment stages by dumping it from one database and importing it into another; imports overwrite existing tables, not merge them.

Built-in support for Rails and Bootstrap error classes reduces step overrides, while configurable error classes, XPath selectors, and optional negation improve flexibility.

datetime_select creates a clumsy date and time chooser in Rails; a visual picker is usually better, but a Cucumber step can still drive it.

Useful Cucumber steps help inspect a Capybara session by opening the current page in a browser or starting an interactive debugger.

Send raw HTTP or HTTPS requests from the command line when curl is unavailable or unsuitable, using nc, telnet, or openssl s_client.

Controller specs can fail without reaching controller code when authentication is missing, no request is triggered, or views stay unrendered.

Geordi 2.7.0 tightens command behavior: cucumber now fails early on @solo feature failures, and commit warns on empty commits while showing progress.

Rails 4 controller specs can send raw JSON in a member action request by passing the JSON body before the route parameters.

Version mismatches between Mocha and Rails 3.2 can trigger an already initialized constant warning; updating Mocha and using a matching Rails version avoids it.

Immediate feedback for failing RSpec examples while passing ones continue to appear as green dots. Uses rspec/instafail with RSpec::Instafail formatting.

rspec_candy 0.4.0 adds support for RSpec 3 and Rails 4, while dropping the unmaintained state_machine integration.

Quoted CSS attribute selectors let Capybara check meta tags reliably; unquoted values can trigger Nokogiri CSS syntax errors.

Template and eval coverage in Ruby can be tracked with SimpleCov from Ruby 3.2 onward, including Haml and ERB templates.

Blueprint attributes in Machinist can keep inherited values unless nil is wrapped in a block; editor { nil } clears the master value, plain nil does not.

Capybara's save_and_open_page files can clutter the Rails root when debugging Cucumber scenarios. Set Capybara.save_and_open_page_path to store them elsewhere.

RSpec one-liners can assert expectations on subject with implicit example descriptions, using should or is_expected in expect-based syntax.

Run one RSpec example group or a single it example by line number in a long spec without executing the whole file.

Unfortunately, by default plugin tests are pretty bland. They use the plain unit test suite supplied by Ruby, and not any of the extended Rails test framework. This will leave our plugin’s test classes with no access to fixtures, database.yml configuration, or any of those nice class auto-loading features.

Quickly verify that a JavaScript Sentry setup reports browser errors by triggering a deliberate exception in a click handler.