RSPEC对nil：NilClass的未定义方法“ jobs”（红宝石在轨道上）

Question

Im testing my controller with RSPEC

CONTROLLER CODE

class CustomersController < ApplicationController
  before_action :set_customer



  def jobs
    @jobs = @customer.jobs
  end



private 

  def set_customer
    if params[:id]
      @customer = Customer.find(params[:id])
    else
      @customer = Customer.find(params[:customer_id])
    end
  end

My Rspec test looks like so:

TEST CODE

describe "GET job" do 
  it "renders the job view" do
     customer = FactoryGirl.create(:customer)
     controller.stub(:set_customer).and_return(customer)
     get (:jobs)
     expect(response).to render_template("customers/jobs.json.jbuilder")
  end
end

The error I am getting - it happens during the call to get(:jobs) is:

ERROR:

Failures:

  1) CustomersController assigns @jobs
     Failure/Error: get (:jobs)
     NoMethodError:
       undefined method `jobs' for nil:NilClass
        # ./app/controllers/customers_controller.rb:37:in `jobs'

I have another test, but that one also gives me the same error when the call to get(:jobs) is made. I am subbing out the set_customer function, and returning a customer variable (made via factory girl). I am not sure why it is still undefined? For reference (again) the error is occurring for this method in the controller:

def jobs
  @jobs = @customer.jobs
end

If this isn't the correct way to do this, how can i generate a @customer variable like its done in the controller set_customers function(via params) and pass it to the rspec test?

Answer 1

您需要将:id或:customer_id参数值传递给请求调用，例如：

get :jobs, id: 42

Answer 2

Stubbing set_customer doesn't set the instance variable, I think you don't even need to stub, you already have the actual customer

describe "GET job" do 
  it "renders the job view" do
     customer = FactoryGirl.create(:customer)
     get(:jobs, id: customer)
     expect(response).to render_template("customers/jobs.json.jbuilder")
  end
end