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POAssociations with Factory Girl in Controller specs
 

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  1. POAssociations with Factory Girl in Controller specs
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    <p>I'm new to RSpec, and trying to get my head around using Factory Girl with associations in controller specs. The difficulty is:</p> <ul> <li>it's necessary to use "attributes_for" in functional tests</li> <li>attributes_for "<a href="https://github.com/thoughtbot/factory_girl/issues/359" rel="nofollow noreferrer">elides any associations</a>"</li> </ul> <p>So if I have models like this:</p> <pre><code>class Brand &lt; ActiveRecord::Base belongs_to :org validates :org, :presence =&gt; true end class Org &lt; ActiveRecord::Base has_many :brands end </code></pre> <p>And a factory like this:</p> <pre><code>FactoryGirl.define do factory :brand do association :org end end </code></pre> <p>This controller spec fails:</p> <pre><code>describe BrandsController do describe "POST create with valid params" do it "creates a new brand" do expect { post :create, brand: attributes_for(:brand) }.to change(Brand, :count).by(1) end end end </code></pre> <p>(And if I comment out "validates :org, :presence => true" it passes)</p> <p>There are a number of solutions suggested and I think I have been making simple errors which have meant that I have not been able to get any of them to work.</p> <p>1) Changing the factory to org_id per <a href="https://github.com/thoughtbot/factory_girl/issues/359" rel="nofollow noreferrer">a suggestion on this page</a> failed a number of tests with "Validation failed: Org can't be blank"</p> <pre><code>FactoryGirl.define do factory :brand do org_id 1002 end end </code></pre> <p>2) Using "symbolize_keys" looks promising. <a href="https://stackoverflow.com/questions/5103572/factorygirl-attributes-for-not-giving-me-associated-attributes">Here</a> and <a href="https://github.com/thoughtbot/factory_girl/issues/408" rel="nofollow noreferrer">here</a> it is suggested to use code like this: </p> <pre><code>(FactoryGirl.build :position).attributes.symbolize_keys </code></pre> <p>I'm not sure how to apply this in my case. Below is a guess that doesn't work (giving the error No route matches {:controller=>"brands", :action=>"{:id=>nil, :name=>\"MyString\", :org_id=>1052, :include_in_menu=>false, :created_at=>nil, :updated_at=>nil}"}): </p> <pre><code>describe BrandsController do describe "POST create with valid params" do it "creates a new brand" do expect { post build(:brand).attributes.symbolize_keys }.to change(Brand, :count).by(1) end end end </code></pre> <p><strong>Update</strong></p> <p>I almost got this working with Shioyama's answer below but got the error message:</p> <pre><code>Failure/Error: post :create, brand: build(:brand).attributes.symbolize_keys ActiveModel::MassAssignmentSecurity::Error: Can't mass-assign protected attributes: id, created_at, updated_at </code></pre> <p>So following <a href="https://stackoverflow.com/questions/5103572/factorygirl-attributes-for-not-giving-me-associated-attributes/11438545#11438545">this question</a> I changed it to:</p> <pre><code>post :create, brand: build(:brand).attributes.symbolize_keys.reject { |key, value| !Brand.attr_accessible[:default].collect { |attribute| attribute.to_sym }.include?(key) } </code></pre> <p>Which worked!</p>
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