“Web console is activated in the test environment”

问题:

I'm a newbie to Rails. Therefore, apologies in advance if this is a dumb question. I have gone through Michael Heartl's book and tried coding an app myself.

I have written a few basic tests, but when trying to test the app with

$bundle exec rake test

I get the following message on the terminal

Web Console is activated in the test environment, which is
usually a mistake. To ensure it's only activated in development
mode, move it to the development group of your Gemfile:

    gem 'web-console', group: :development

If you still want to run it the test environment (and know
what you are doing), put this in your Rails application
configuration:

    config.web_console.development_only = false

When I add the above to development.rb it still doesn't make a difference.

Please help me understand what I'm doing wrong.

回答1:

What you need to do is make sure that in your Gemfile the line gem 'web-console' is only loaded in the group development.

Can you maybe post your Gemfile? This way we can see if that is what's causing it.

In your Gemfile it should either be:

gem 'web-console', group: :development

or

group :development do
  gem 'web-console'
end

回答2:

In the Gem file if you have this line

gem 'web-console', '~> 2.0'

Remove it.

Then run

$ gem install bundler

$ bundle install --without production

回答3:

I've gone through Michael Hartl's course as well. I know the Gemfile states that you should have it the way you have it but it brings up that message. If you don't want to change the Gemfile and leave it as the way in the book, you can go to config > environments > test.rb and add in the line below.

config.web_console.development_only = false

Save this and you're good to go.

回答4:

I'm also studying ROR with Michael Heartl's book and faced the same problem! The thing that helped me is adding a 'guard' gem to the app's Gemfile. So the parts of Gemfile look like so:

group :development do

  gem 'sqlite3'

  gem 'byebug'

  gem 'spring'

  gem 'web-console', '~> 2.0'

end


group :test do

  gem 'minitest-reporters'

  gem 'mini_backtrace'

  gem 'guard'

  gem 'guard-minitest'

end

Also run the following command after changing the code:

bundle install --without production

After these manipulations the tests are executed by the command:

bundle exec rake test