RSpec ActiveRecord::RecordNotFound

Question

我很难通过考试：

错误：

Failure/Error: post :create, { appointment: { dentist_id: '1', patient_id: '2', appt_date: '2015-12-05 09:00:00' } }
 ActiveRecord::RecordNotFound:
   Couldn't find Dentist with 'id'=

约会控制器：

def create
 @dentist = Dentist.find(params[:dentist_id])
 @appointment = @dentist.appointments.new(appointment)
  if Appointment.exists?(:appt_date => @appointment.appt_date)
   render :new
  else
   @appointment.save
   redirect_to dentist_path(@dentist)
  end
end

预约说明：

describe 'POST #create' do
 it 'assigns a newly created appointment as @appointment' do
  post :create, { appointment: { dentist_id: '1', patient_id: '2', appt_date: '2015-12-05 09:00:00' } }
  expect(assigns(:appointment)).to be_a(Appointment)
  expect(assigns(:appointment)).to be_persisted
 end
end

我错过了什么？非常感激任何的帮助。

Answer 1

在您的请求中，您正在执行post :create, { appointment: { dentist_id: '1', ... } }，这意味着您的控制器中的params[:dentist_id] 将是nil（请注意您如何在请求参数中的appointment 下嵌套dentist_id）。要解决此问题，请将控制器操作中的 @dentist = Dentist.find(params[:dentist_id]) 更改为 @dentist = Dentist.find(params[:appointment][:dentist_id])，或将您的请求更改为 post :create, { dentist_id: '1', appointment: { patient_id: '2' ... } }。

更新

在运行测试之前，您还需要在数据库中创建Dentist 记录。为此，请在您的测试用例中添加如下内容：

describe 'POST #create' do
  before { Dentist.create!(id: 1) }

  it 'assigns a newly created appointment as @appointment' do
    post :create, { dentist_id: '1', appointment: { patient_id: '2', appt_date: '2015-12-05 09:00:00' } }
    ...
  end
end