Rspec + Factory girl (without rails!) - ruby

Question

I am using Rspec with selenium-webdriver gem to test a web app. And I wanted to unclude factories in my tests to emulate users and not to create a user manually each time.
So, I made gem install factory_girl, added required lined in my spec_helper, created a factory and included some lines in my spec file. And when running the test I get an error
Failure/Error: FactoryGirl.build(:user)
NameError:
uninitialized constant User
Here is my spec_helper.rb
RSpec.configure do |config|
config.include FactoryGirl::Syntax::Methods
config.expect_with :rspec do |expectations|
expectations.include_chain_clauses_in_custom_matcher_descriptions = true
end
My factories.rb file:
FactoryGirl.define do
factory :user do
name "testuser"
password "freestyle"
inventory true
end
end
And my test_spec file:
require "json"
require "selenium-webdriver"
require "rspec"
require "factory_girl"
FactoryGirl.find_definitions
include RSpec::Expectations
describe "MallSpec" do
before(:all) do
FactoryGirl.build(:user)
#driver = Selenium::WebDriver.for :firefox
#base_url = "http://localhost:9000/"
#accept_next_alert = true
#driver.manage.timeouts.implicit_wait = 30
#driver.manage.window.resize_to(1301, 744)
#verification_errors = []
end
My spec_file is in the root dir of the project. my factories.rb file is in /spec dir as well as the test_spec.rb itself.
Can anyone help me with this issue or point what i am doing wrong?

Answer 1

If you don't actually have a User class but you want to use FactoryGirl to generate the attributes, you can override the class:
require "ostruct"
FactoryGirl.define do
factory :user, class: OpenStruct do
name "testuser"
password "freestyle"
inventory true
# This isn't necessary, but it will prevent FactoryGirl from trying
# to call #save on the built instance.
to_create {}
end
end
You can then use attributes_for if you just want a Hash, or create if you want an object that responds to methods like name.
You can use a library like Hashie::Mash if you want to generate JSON for use in your API:
factory :user, class: Hashie::Mash do
# ...
end
# In your tests:
user_json = create(:user).to_json

Answer 2

And when running the test I get an error Failure/Error:
FactoryGirl.build(:user) NameError: uninitialized constant User
Your User class has to be defined. The following is a test with no User class defined:
require 'factory_girl'
RSpec.configure do |config|
config.include FactoryGirl::Syntax::Methods
end
FactoryGirl.define do
factory :user do
name 'Alice'
age 10
end
end
describe "MallSpec" do
let(:test_user) { FactoryGirl.build(:user) }
describe "user's name" do
it "equals 'Alice'" do
expect(test_user.name).to eq('Alice')
end
end
end
--output:--
$ rspec 1.rb
F
Failures:
1) MallSpec user's name equals 'Alice'
Failure/Error: let(:user) { FactoryGirl.build(:user) }
NameError:
uninitialized constant User
...
Adding a definition for the User class:
require 'factory_girl'
#====NEW CODE=====
class User
attr_accessor :name, :age
end
#=================
RSpec.configure do |config|
config.include FactoryGirl::Syntax::Methods
end
FactoryGirl.define do
factory :user do
name 'Alice'
age 10
end
end
describe "MallSpec" do
let(:test_user) { FactoryGirl.build(:user) }
describe "user's name" do
it "equals 'Alice'" do
expect(test_user.name).to eq('Alice')
end
end
end
--output:--
$ rspec 1.rb
.
Finished in 0.0024 seconds (files took 0.35197 seconds to load)
1 example, 0 failures
I expect that the factory() method here:
factory :user do
name 'Alice'
age 10
end
...does something like this:
def factory(model_name)
target_class = constant_get(model_name.capitalize)
...in order to construct a real instance of the User class. In other words, factory_girl constructs instances of classes that already exist in your app--factory_girl does not mock a class.