rspec rails not working with mongoid

Surya

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Sep 11, 2018, 4:06:01 PM9/11/18

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Hi,

I am having trouble setting up rspec rails with mongoid. I get the following exception(one of the exceptions but same for all 16 cases) when running the rspec:

16) PostsController routing routes to #destroy
Failure/Error: raise ConnectionNotEstablished, "No connection pool with '#{spec_name}' found." unless pool

ActiveRecord::ConnectionNotEstablished:
No connection pool with 'primary' found.
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:930:in `retrieve_connection'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_handling.rb:116:in `retrieve_connection'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_handling.rb:88:in `connection'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:516:in `create_fixtures'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:1028:in `load_fixtures'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:999:in `setup_fixtures'
# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:851:in `before_setup'

Here is the sample vanilla application code - https://github.com/suryart/rspec_mongo_test_app

Steps that I followed :

Create a new rails app -

$ rails new rspec_mongo_test_app --api --skip-active-record -T

Modify Gemfile to this:

source 'https://rubygems.org'

git_source(:github) do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
"https://github.com/#{repo_name}.git"
end

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.1.6'
# Use Puma as the app server
gem 'puma', '~> 3.7'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
# gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
# gem 'rack-cors'

group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
# gem 'database_cleaner', '~> 1.7'
gem 'factory_bot_rails', '~> 4.x'
gem 'forgery', '~> 0.7'
gem 'guard-rspec', '4.7.3'
gem 'mongoid-rspec', '~> 4.0'
gem 'rspec-rails', '~> 3.8'
gem 'rubocop', '~> 0.58.2', require: false
gem 'simplecov', '~> 0.16', require: false
gem 'reek', '~> 5.0', require: false
end

group :development do
gem 'listen', '>= 3.0.5', '< 3.2'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

gem 'mongoid', '~> 7.0'

gem 'devise_token_auth', '0.1.43'

Setup mongoid:

$ rails g mongoid:config
$ rails g rspec:install

Now create a controller

$ rails g scaffold post subject:string content:text

Made config change in config/application.rb to take mongoid as ORM for generator(https://github.com/suryart/rspec_mongo_test_app/blob/master/config/application.rb), also modified spec_helper.rb to remove all active record related dependencies(https://github.com/suryart/rspec_mongo_test_app/blob/master/spec/rails_helper.rb).

I'm not quite sure what I'm doing wrong here. The whole setup works if I disable the `require 'rspec/rails'` line in rails_helper.rb file but then I can't run all rails controller/requests related tests as they require get/post etc methods. Please help.

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Please consider the environment before printing this email.

Regards,
Surya

Surya

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Sep 11, 2018, 4:07:15 PM9/11/18

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Here is the complete trace:

16) PostsController routing routes to #destroy

Failure/Error: raise ConnectionNotEstablished, "No connection pool with '#{spec_name}' found." unless pool

ActiveRecord::ConnectionNotEstablished:

No connection pool with 'primary' found.

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:930:in `retrieve_connection'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_handling.rb:116:in `retrieve_connection'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/connection_handling.rb:88:in `connection'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:516:in `create_fixtures'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:1028:in `load_fixtures'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:999:in `setup_fixtures'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/activerecord-5.1.6/lib/active_record/fixtures.rb:851:in `before_setup'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-rails-3.8.0/lib/rspec/rails/adapters.rb:126:in `block (2 levels) in <module:MinitestLifecycleAdapter>'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example.rb:447:in `instance_exec'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/hooks.rb:373:in `execute_with'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/hooks.rb:606:in `block (2 levels) in run_around_example_hooks_for'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example.rb:342:in `call'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/hooks.rb:607:in `run_around_example_hooks_for'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/hooks.rb:464:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example.rb:457:in `with_around_example_hooks'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example.rb:500:in `with_around_and_singleton_context_hooks'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example.rb:251:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:629:in `block in run_examples'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:625:in `map'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:625:in `run_examples'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:591:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:592:in `block in run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:592:in `map'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/example_group.rb:592:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:116:in `block (3 levels) in run_specs'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:116:in `map'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:116:in `block (2 levels) in run_specs'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:1989:in `with_suite_hooks'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:111:in `block in run_specs'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:74:in `report'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:110:in `run_specs'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:87:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:71:in `run'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:45:in `invoke'

# /Users/surya/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/exe/rspec:4:in `<top (required)>'

# /Users/surya/.rvm/gems/ruby-2.3.1/bin/rspec:23:in `load'

# /Users/surya/.rvm/gems/ruby-2.3.1/bin/rspec:23:in `<main>'

# /Users/surya/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval'

# /Users/surya/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `<main>'

#

# Showing full backtrace because every line was filtered out.

# See docs for RSpec::Configuration#backtrace_exclusion_patterns and

# RSpec::Configuration#backtrace_inclusion_patterns for more information.

cy...@myjobglasses.com

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Sep 11, 2018, 4:27:01 PM9/11/18

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You might want to follow this answer from StackOverflow. In my previous mongoid project I did not need such patching but apparently we either missed something, or some strong dependencies were added in Rails/RSpec which makes it harder to separate it from ActiveRecord

Jon Rowe

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Sep 11, 2018, 4:33:12 PM9/11/18

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Hi

I believe you need to not require ActiveRecord, have you removed the `require “active_record/railtie”` from your `config/application.rb`?

Jon Rowe

---------------------------

ma...@jonrowe.co.uk

jonrowe.co.uk

Surya

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Sep 12, 2018, 1:39:43 PM9/12/18

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Jon,

I'm using mongoid as ORM so I don't think I need ActiveRecord to be enabled in application.rb. Thank you for your inputs.

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Surya

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Sep 12, 2018, 1:43:06 PM9/12/18

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Cyril,

Thank you for the link. This patch solved the issue. Any idea where the issue is exactly? Is it rspec-rails gem or rails itself?

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cy...@myjobglasses.com

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Sep 12, 2018, 1:55:14 PM9/12/18

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No idea, the patch is like black magic to me. I don't understand how overriding a method just to call super could even solve anything. Probably some binding trick. Ruby is dark and full of terrors...

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