FactoryBot - Unilitialized constant - Ruby project (not rails!) - ruby

Question

I am trying to set up a test on a very basic ruby project(not rails) with the factorybot gem, but can't find a way to make it work. I followed the guide https://github.com/thoughtbot/factory_bot/blob/master/GETTING_STARTED.md
which is just installing the gem, run bundle install and add to my spec/spec_helper.rb this configuration:
RSpec.configure do |config|
config.include FactoryBot::Syntax::Methods
config.before(:suite) do
FactoryBot.find_definitions
end
end
Then I created a factories/order_factories.rb file inside the spec folder like this:
FactoryBot.define do
factory :restaurant do
id { 3 }
cooking_time { 15 }
x { 0 }
y { 0}
end
factory :customer do
id { 1 }
x { 1 }
y { 1 }
end
end
and require it from the spec file of the object I want to test. The file is order_spec.rb like this :
require_relative './factories/order_factories'
let(:restaurant) { create(:restaurant) }
describe "Order", :order do
it "should be initialized with a hash of properties" do
properties = { :customer => 1, :restaurant => 3 }
order = Order.new(properties)
expect(order).to be_a(Order)
end
end
I already tried tones of other file organisation with proper require, but keep on having the FactoryBot constant not initialized. I wonder if my Gemfile.lock is not the origin of the problem:
GEM
remote: https://rubygems.org/
specs:
activesupport (6.1.3.2)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (>= 1.6, < 2)
minitest (>= 5.1)
tzinfo (~> 2.0)
zeitwerk (~> 2.3)
concurrent-ruby (1.1.8)
diff-lcs (1.4.4)
factory_bot (6.1.0)
activesupport (>= 5.0.0)
i18n (1.8.10)
concurrent-ruby (~> 1.0)
minitest (5.14.4)
rspec (3.10.0)
rspec-core (~> 3.10.0)
rspec-expectations (~> 3.10.0)
rspec-mocks (~> 3.10.0)
rspec-core (3.10.1)
rspec-support (~> 3.10.0)
rspec-expectations (3.10.1)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.10.0)
rspec-mocks (3.10.2)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.10.0)
rspec-support (3.10.2)
tzinfo (2.0.4)
concurrent-ruby (~> 1.0)
zeitwerk (2.4.2)
PLATFORMS
x86_64-darwin-18
DEPENDENCIES
factory_bot
rspec (~> 3.0)
BUNDLED WITH
2.2.16
Is there something I am missing here?
my spec/spec_helper.rb file :
require "factory_bot"
RSpec.configure do |config|
config.include FactoryBot::Syntax::Methods
config.before(:suite) do
FactoryBot.find_definitions
end
config.expect_with :rspec do |expectations|
expectations.include_chain_clauses_in_custom_matcher_descriptions = true
end
config.mock_with :rspec do |mocks|
mocks.verify_partial_doubles = true
end
config.shared_context_metadata_behavior = :apply_to_host_groups
end
I edited my order_spec.rb like this :
require_relative "./spec_helper"
require "factory_bot"
require_relative './factories/order_factories'
but still not working..

Answer 1

If you have a Rails model with an attribute named y, and you have a factory that sets this attribute, it freaks out FactoryBot. It's not FactoryBot's fault, see error https://github.com/thoughtbot/factory_bot/issues/1397
Solution is to set the y attribute via
add_attribute(:y) { 0 }