CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3testingrspec
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Reputation: 11107

Testing Creation Variable Assignments in Rspec

I'm creating a rspec test to see if the instance variable in the create method retains the data built. However, my test doesn't work since I'm returned with this error...

Failure/Error: assigns[:micropost]should eq(@post)
expected: #<Micropost id: 1, content: "Hello there", user_id: 1>
got: #<Micropost id: 2, content: "Hello there", user_id: 1>

My rspec test is

describe ::MicropostsController do

before :each do
  @post = FactoryGirl.create(:micropost)
end

it "tests the instance variable in create method" do
    post :create, micropost: FactoryGirl.attributes_for(:micropost)
    assigns(:micropost).should eq(@post)
end

My FactoryGirl file is

FactoryGirl.define do

 factory :micropost do

  content "Hello there Bob!"
  user_id "1"
  #even if I got rid of the double quotations around 1, the stringify key error still 
  #pops up

 end

end

Here is the micropost controller create action code...

def create

@micropost = Micropost.new(params[:micropost])

 respond_to do |format|

  if @micropost.save

    format.html { redirect_to @micropost, notice: 'Micropost was successfully create.' 
    }

  else

    format.html { render action: "new" }

  end

 end

end

Upvotes: 0

Views: 660

Answers (2)

arieljuod
arieljuod

Reputation: 15838

if you want to test that the micropost is created you have to pass some parameters to the post action, in your test you only build a new Micropost (in memory, not saved) and your create action doesn't even know that it exists:

I should do something like:

before(:each) do
  @micro_mock = mock(:micropost)
  @micro_mock.stub!(:save => true)
end

it "creates a micropost" do
  params = {:micropost => {:something => 'value', :something2 => 'value2'}}
  Micropost.should_receive(:new).with(params).and_return(@micro_mock)
  post :create, params
end

it "assigns the created micropost to an instance variable" do
  Micropost.stub!(:new => @micro_mock)
  post :create
  assigns(:micropost).should == @micro_mock
end

you should test the redirects and the flash messages to (stub the save method to true/false when needed)

Upvotes: 1

Chris Salzberg
Chris Salzberg

Reputation: 27374

You are getting nil values in micropost because you have not posted any data in this line:

post '/microposts'

You need to actually include the data for this to work:

post '/microposts', :micropost => p

Upvotes: 0

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