I am trying to install factory_bot_rails to use with rspec.
I am working my way through Everyday Rails Testing with RSpec A practical approach to test-driven development, by Aaron Sumner, http://leanpub.com/everydayrailsrspec, published on 2024-10-10.
I was able to install factory_bot_rails on the cloned repo I downloaded from the book’s github site. However, when I try to use it on a repo I’m working on for work, I can’t get it to install.
Here’s what I tried:
$ bundle add factory_bot_rails
$ bundle install
$ rspec
I got the following error message (edit: added full stack trace)
An error occurred while loading ./spec/models/book_spec.rb.
Failure/Error: config.include FactoryBot::Syntax::Methods
NameError:
uninitialized constant FactoryBot
# ./spec/support/factory_bot.rb:3:in `block in <top (required)>'
# ./spec/support/factory_bot.rb:2:in `<top (required)>'
# ./spec/rails_helper.rb:2:in `require'
# ./spec/rails_helper.rb:2:in `<top (required)>'
# ./spec/models/book_spec.rb:1:in `require'
# ./spec/models/book_spec.rb:1:in `<top (required)>'
An error occurred while loading ./spec/models/purchase_requests_spec.rb.
Failure/Error: config.include FactoryBot::Syntax::Methods
NameError:
uninitialized constant FactoryBot
# ./spec/support/factory_bot.rb:3:in `block in <top (required)>'
# ./spec/support/factory_bot.rb:2:in `<top (required)>'
# ./spec/rails_helper.rb:2:in `require'
# ./spec/rails_helper.rb:2:in `<top (required)>'
# ./spec/models/purchase_requests_spec.rb:1:in `require'
# ./spec/models/purchase_requests_spec.rb:1:in `<top (required)>'
No examples found.
Finished in 0.00004 seconds (files took 0.08647 seconds to load)
0 examples, 0 failures, 2 errors occurred outside of examples
There is a model for “book” in my repo.
I also tried
$ rails generate factory_bot:model book
And got (edit adding full stack trace) )
jajames@IN-ULIB-CSTLAP5:~/projects/pda2(JJ-Rspec-factory-bot)$ rails generate factory_bot:model book
Traceback (most recent call last):
31: from bin/rails:4:in `<main>'
30: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
29: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
28: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/commands.rb:18:in `<main>'
27: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/command.rb:48:in `invoke'
26: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/command/base.rb:87:in `perform'
25: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
24: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
23: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
22: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/commands/generate/generate_command.rb:21:in `perform'
21: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
20: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/railties-7.0.3/lib/rails/command/actions.rb:22:in `require_application!'
19: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
18: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
17: from /home/jajames/projects/pda2/config/application.rb:7:in `<main>'
16: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler.rb:174:in `require'
15: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler/runtime.rb:58:in `require'
14: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler/runtime.rb:58:in `each'
13: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler/runtime.rb:69:in `block in require'
12: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler/runtime.rb:69:in `each'
11: from /home/jajames/.rvm/rubies/ruby-2.7.2/lib/ruby/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
10: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
9: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
8: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot_rails-6.4.3/lib/factory_bot_rails.rb:1:in `<main>'
7: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
6: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
5: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot_rails-6.4.3/lib/factory_bot_rails/railtie.rb:3:in `<main>'
4: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
3: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
2: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot-6.4.5/lib/factory_bot.rb:25:in `<main>'
1: from /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/bootsnap-1.12.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require': /home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot-6.4.5/lib/factory_bot/evaluator.rb:38: syntax error, unexpected (... (SyntaxError)
...method_missing(method_name, ...)
... ^~~
/home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot-6.4.5/lib/factory_bot/evaluator.rb:40: syntax error, unexpected ')'
...instance.send(method_name, ...)
... ^
/home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot-6.4.5/lib/factory_bot/evaluator.rb:42: syntax error, unexpected ')'
...nner.new.send(method_name, ...)
... ^
/home/jajames/.rvm/gems/ruby-2.7.2@pda/gems/factory_bot-6.4.5/lib/factory_bot/evaluator.rb:80: syntax error, unexpected end-of-input, expecting `end'
Also tried:
$ gem install factory_bot_rails
$ bundle install
$ rspec
https://github.com/thoughtbot/factory_bot_rails Same error message.
In Gemfile:
group :development, :test do
gem 'rspec-rails', '~> 6.0.0'
gem 'factory_bot_rails'
end
https://github.com/thoughtbot/factory_bot_rails
I tried both
$ factory_bot – version
$ factory_bot_rails –version
And got “factory_bot_rails: command not found”
What do I need to do different to install this?
I am using Ubuntu 22.04.5 on Windows 10 Enterprise, Rails 7.0.3, RSpec 3.12, Ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-linux]
Here is spec/models/book_spec.rb
require 'rails_helper'
RSpec.describe Book, type: :model do
it "is valid with a name and title" do
book = Book.new(
name: "jajames",
title: "Emma",
purchase: "ebook"
)
end
it "requires a title" do
book = Book.new(title: nil)
expect(book).to be_invalid
expect(book.errors[:title]).to_not include("can't be blank")
end
it "requires a name" do
book = Book.new(name: nil)
expect(book).to be_invalid
expect(book.errors[:name]).to_not include("can't be blank")
end
it "requires a purchase" do
book = Book.new(purchase: nil)
expect(book).to be_invalid
expect(book.errors[:purchase]).to_not include("can't be blank")
end
end
No book factory was created.
What is a stack trace please? I am not a very advanced programmer.
Here is the code for config>application.rb. Did I put the config.generators code in the right place?
require_relative "boot"
require "rails/all"
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module Pda2
class Application < Rails::Application
# Initialize configuration defaults for originally generated Rails version.
config.load_defaults 7.0
# Configuration for the application, engines, and railties goes here.
#
# These settings can be overridden in specific environments using the files
# in config/environments, which are processed later.
#
# config.time_zone = "Central Time (US & Canada)"
# config.eager_load_paths << Rails.root.join("extras")
# Custom configurations go here
config.pda = config_for(:pda)
end
config.generators.system_tests = nil
config.generators do |g|
g.test_framework :rspec, fixtures: true, views: false, view_specs: false, helper_specs: false, routing_specs: false, controller_specs: false, request_specs: false
g.fixture_replacement :factory_bot, dir: 'spec/factories'
g.stylesheets false
g.javascripts false
g.helper false
end
end
When I try Anton Bodganov's suggestion, I get the same error as "$ bundle add factory_bot_rails"
(edited: I was in wrong folder)
when I try to generate a factory (I think that's what that's called)I get the same message as above $ rails generate factory_bot:model book
Your issue is that the version of factory_bot
you are using leverages Ruby 3.0 syntax for argument forwarding but you are running Ruby 2.7.2.
Options:
RECOMMENDED upgrade your ruby to 3.3
. Ruby 2.7 reached End of Life on March 31, 2023 and is no longer receiving support or security patches. 3.3 is the most recent stable branch.
Downgrade factory_bot
in your Gemfile. You can do this one of 2 ways:
factory_bot_rails
to read gem 'factory_bot_rails', '6.2.0'
; orgem 'factory_bot', '6.4.3'
(which is the last version to use 2.7 compatible syntax)