Sollte eine Rails-App ihre .env-Datei laden, wenn ihre Tests ausgeführt werden?

Question

Sollte meine App Dotenv.load aufrufen, wenn sie ihre Testsuite ausführt?

Ohne Aufruf Dotenv.load beim Ausführen meiner Testsuite schlägt rspec mit einem Fehler über das Fehlen eines Umgebungsschlüssels fehl. Ich habe den Fehler und seine Stack-Trace unten eingefügt.

$ rspec 

An error occurred while loading ./spec/requests/users/create_spec.rb. 
Failure/Error: require File.expand_path('../../config/environment', __FILE__) 

KeyError: 
    key not found: "REDIS_URL" 
# (erb):11:in `fetch' 
# (erb):11:in `<main>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application.rb:233:in `config_for' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable/engine.rb:31:in `block (2 levels) in <class:Engine>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:69:in `instance_eval' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:69:in `block in execute_hook' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:60:in `with_execution_control' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:65:in `execute_hook' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:50:in `block in run_load_hooks' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:49:in `each' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/lazy_load_hooks.rb:49:in `run_load_hooks' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable/server/base.rb:85:in `<module:Server>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable/server/base.rb:4:in `<module:ActionCable>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable/server/base.rb:3:in `<top (required)>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `block in require' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:258:in `load_dependency' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable.rb:44:in `server' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actioncable-5.1.4/lib/action_cable/engine.rb:46:in `block (3 levels) in <class:Engine>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:426:in `instance_exec' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:426:in `eval_block' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:443:in `block in clear!' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:443:in `each' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/actionpack-5.1.4/lib/action_dispatch/routing/route_set.rb:443:in `clear!' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:50:in `block in clear!' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:48:in `each' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:48:in `clear!' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:17:in `reload!' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:41:in `block in updater' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.4/lib/active_support/file_update_checker.rb:81:in `execute' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:42:in `updater' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/routes_reloader.rb:31:in `execute_if_updated' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application/finisher.rb:128:in `block in <module:Finisher>' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `instance_exec' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `run' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/initializable.rb:59:in `block in run_initializers' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/initializable.rb:58:in `run_initializers' 
# /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/railties-5.1.4/lib/rails/application.rb:353:in `initialize!' 
# ./config/environment.rb:5:in `<top (required)>' 
# ./spec/rails_helper.rb:4:in `require' 
# ./spec/rails_helper.rb:4:in `<top (required)>' 
# ./spec/requests/users/create_spec.rb:1:in `require' 
# ./spec/requests/users/create_spec.rb:1:in `<top (required)>' 

Answer 1

Außerhalb eines Rails-Anwendung möchten Sie folgendes tun:

require 'dotenv/tasks' 

task start: [:dotenv] do 
    # this Rake tasks depends on the dotenv loading task 
    puts 'hi' 
end 

Innerhalb einer Rails-Anwendung:

Da Sie tatsächlich in eine Rails-Anwendung sind, dann würde ich machen sicher, dass Sie dotenv-rails in Ihrem Gemfile verwenden, anstatt nur dotenv. Ersteres wird den dotenv-Stuff als Teil der Rails-Start-Routine automatisch ausführen