why does RSpec fail with undefined method [] Nil::NilClass for AWS_CONFIG['bucket']

Question

config/initializers/aws_config.rb:

AWS_CONFIG = YAML.load_file("#{::Rails.root}/config/aws.yml")[Rails.env]

Model has code:

self.bucket = AWS_CONFIG["bucket"]

Test result:

 Failure/Error: self.bucket = AWS_CONFIG['bucket']
 NoMethodError:
   undefined method `[]' for nil:NilClass

There's no problem in development or production running the code, why does the aws_config initializer fail under RSpec?

When you open your `rails console` what does the AWS_CONFIG give you? My guess is that the `test` key is not set/properly in the config file. kindly confirm this! — oreoluwa, Jun 08 '16 at 22:33
Can you paste your aws.yml file just hide the was credentials — Piyush Patil, Jun 08 '16 at 22:38
rails console works fine, AWS_CONFIG['bucket'] is setup with the correct value. I will add that this is a rails engine I'm testing. The aws.yml file is basically what is posted in the answer below. — Keith Johnson, Jun 09 '16 at 02:42

score 0 · Answer 1 · answered Jun 08 '16 at 22:50

My guess is that the 'test' is not set/properly in your configuration file. As an added bonus, when loading your configuration files from config/*.yml, Rails provides a helper method to fetch the configurations. Assuming you've nested your configurations appropriately, you should be able to #{your app name here(find it in config/application.rb)}::Application.config_for(:aws), if you've set it properly, you should just be able to fetch the values, without looking under the environment.

Take a look at this for example

production:
  secret_key: 000894jnjfbdfu39
  secret_id: 123456
  bucket: shadow

development:
  secret_key: 000894jnjfbdfu39
  secret_id: 123456
  bucket: shadow

test:
  secret_key: 000894jnjfbdfu39
  secret_id: 123456
  bucket: meadow

In your application initializer, you could then have:

AWS_CONFIG = YourApp::Application.config_for(:aws) All other things should work normally after this.

score 0 · Answer 2 · edited May 23 '17 at 12:24

0

engine.rb did not require gems.

this is why model didn't have AWS_CONFIG, while rails console did.

See, this answer, for how to load gems in engine.

edited May 23 '17 at 12:24

Community

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answered Jun 09 '16 at 14:06

Keith Johnson

1

why does RSpec fail with undefined method [] Nil::NilClass for AWS_CONFIG['bucket']

2 Answers2