apipie gem和rspec在rails 4中的問題

Question

我在編寫代碼讓我的Rspec測試通過我的api。我正在使用apipie gem來生成文檔，而且似乎我的測試失敗了，因爲您期待一個數字，這很有趣，因爲這正是我想要測試的。 當：bpm參數不是數字時頁面失敗。有什麼方法可以解決這個問題嗎？

context "when is not created" do 
    before(:each) do 
    user = FactoryGirl.create :user 
    @invalid_lesson_attributes = { title: "California Dreamin", 
            bpm: "Hello" 

    } 
    request.headers['Authorization'] = user.auth_token 
    post :create, { user_id: user.id, lesson: @invalid_lesson_attributes } 
    end 


    it "renders an errors json" do 
    lesson_response = json_response 
    expect(lesson_response).to have_key(:errors) 
    end 
    it "renders the json errors on why the user could not be created" do 
    lesson_response = json_response 
    expect(lesson_response[:errors][:bpm]).to include "is not a number" 
    end 

    it { should respond_with 422 } 

    end 
end 

更新規格：

context "when is not updated" do 
    before(:each) do 
    patch :update, { user_id: @user.id, id: @lesson.id, 
        lesson: { bpm: "ten" }, format: :json } 
    end 

    it "renders an errors json" do 
    lesson_response = json_response 
    expect(lesson_response).to have_key(:errors) 
    end 

    it "renders the json errors on why the user could not be updated" do 
    lesson_response = json_response 
    expect(lesson_response[:errors][:bpm]).to include "is not a number" 
    end 

    it { should respond_with 422 } 
end 

在我users_controller

：

api :POST, '/teachers/:user_id/lessons/', "Create lesson" 
param :lesson, Hash, desc: 'Lesson information', :required => true do 
    param :title, String, desc: 'Title of the lesson', :required => true 
    param :bpm, :number, desc: 'tempo of the lesson (beats per second)', :required => true 

end 
error :code => 422, :desc => "Unprocessable Entity" 

我的錯誤，當我跑我的RSpec的測試：

Apipie::ParamInvalid: Invalid parameter 'bpm' value "Hello": Must be a number. 

Answer 1

添加格式JSON來POST請求

post :create, { user_id: user.id, lesson: @invalid_lesson_attributes, format: :json } 

這對我有效。