forked from fixin.me/fixin.me
When database.yml defines more than one top-level key starting with "test",
every standard test task (rails test, rails test:models, rails test:system,
rails test:controllers, …) is automatically rewritten at load time to run
the full suite against each configured database in turn.
Single-database setups are completely unaffected — the wrapping code
activates only when test_configs.size > 1, so existing behaviour is
preserved by default.
Convention: test: is the required primary; test_<name>: adds an adapter:
test_sqlite:
adapter: sqlite3
database: db/fixinme_test.sqlite3
test_pg:
adapter: postgresql
...
Mechanism:
- lib/tasks/test_databases.rake loads after railties/testing.rake (which
defines all test tasks). For each task in the wrapped set it calls
Rake::Task[name].clear_actions and re-enhances with a block that loops
over DB configs, writing a temporary database.yml per database and
running "rails <task_name>" as a subprocess with RAILS_DATABASE_YML set.
- config/application.rb(.dist): reads RAILS_DATABASE_YML and overrides
Rails' database config path before initialisation — no monkey-patching
of the test runner required.
- Adapter gem availability is checked before each run; missing adapters are
skipped with a hint on which bundle group to enable.
- A formatted summary (✓/✗ per database) is printed; exits non-zero on
any failure.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
63 lines
2.5 KiB
Plaintext
63 lines
2.5 KiB
Plaintext
require_relative "boot"
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require "rails"
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# Pick the frameworks you want:
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require "active_model/railtie"
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# require "active_job/railtie"
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require "active_record/railtie"
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# require "active_storage/engine"
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require "action_controller/railtie"
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require "action_mailer/railtie"
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# require "action_mailbox/engine"
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# require "action_text/engine"
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require "action_view/railtie"
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# require "action_cable/engine"
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require "rails/test_unit/railtie"
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# Require the gems listed in Gemfile, including any gems
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# you've limited to :test, :development, or :production.
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Bundler.require(*Rails.groups)
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module FixinMe
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class Application < Rails::Application
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# Allow RAILS_DATABASE_YML to override the database config file path.
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# Used by the multi-database test runner (lib/tasks/test_databases.rake).
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config.paths['config/database'] = [ENV['RAILS_DATABASE_YML']] if ENV['RAILS_DATABASE_YML']
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# Initialize configuration defaults for originally generated Rails version.
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config.load_defaults 7.0
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# Autoload lib/, required e.g. for core library extensions.
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# https://guides.rubyonrails.org/autoloading_and_reloading_constants.html#config-autoload-lib-ignore.
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config.autoload_lib(ignore: %w(assets tasks))
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# Configuration for the application, engines, and railties goes here.
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#
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# These settings can be overridden in specific environments using the files
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# in config/environments, which are processed later.
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#
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# config.time_zone = "Central Time (US & Canada)"
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# config.eager_load_paths << Rails.root.join("extras")
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config.action_dispatch.rescue_responses['ApplicationController::AccessForbidden'] = :forbidden
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config.action_dispatch.rescue_responses['ApplicationController::ParameterInvalid'] = :unprocessable_entity
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# SETUP: Below settings need to be updated on a per-installation basis.
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#
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# URL to use in sent e-mails.
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config.action_mailer.default_url_options = {host: 'localhost', :protocol => 'https'}
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# https://guides.rubyonrails.org/configuring.html#config-action-mailer-delivery-method
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config.action_mailer.delivery_method = :sendmail
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# List of hosts this app is available at.
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# https://guides.rubyonrails.org/configuring.html#actiondispatch-hostauthorization
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config.hosts += ['localhost', 'example.com', IPAddr.new('1.2.3.4/32')]
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# Email address of admin account
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config.admin = 'admin@localhost'
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# Sender address of account registration-related messages
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Devise.mailer_sender = 'noreply@localhost'
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end
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end
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