Question

我试图学习如何在Rails中进行测试。我有一个foods_controller，在测试文件夹中，我的food.yml填充了创建新食物对象时应该出现的所有参数，并在foods_controller_test.rb中，＆＃中的参数34;应该创造食物＆＃34;与food.yml中的匹配。运行测试时出现此错误：

ArgumentError: too few arguments
    app/controllers/application_controller.rb:45:in `format'
    app/controllers/application_controller.rb:45:in `authorize'
    test/controllers/foods_controller_test.rb:21:in `block (2 levels) in <class:FoodsControllerTest>'
    test/controllers/foods_controller_test.rb:20:in `block in <class:FoodsControllerTest>

有人可以在这里冒犯我的错误吗？

food.yml

one:
  name: "Whatever"
  portion: "100g"
  calories: 1
  fat: 1.5
  carb: 1.5
  protein: 1.5
  fiber: 1.5
  sugar: 1.5
  category: "Grains"

two:
  name: "MyString"
  portion: "MyString"
  calories: 1
  fat: 1.5
  carb: 1.5
  protein: 1.5
  fiber: 1.5
  sugar: 1.5
  category: "MyString"

foods_controller_test.rb

require 'test_helper'

class FoodsControllerTest < ActionController::TestCase
  setup do
    @food = foods(:one)
  end

  test "should get index" do
    get :index
    assert_response :success
    assert_not_nil assigns(:foods)
  end

  test "should get new" do
    get :new
    assert_response :success
  end

  test "should create food" do
    assert_difference('Food.count') do
      post :create, food: { calories: @food.calories, carb: @food.carb, category: @food.category, fat: @food.fat, fiber: @food.fiber, name: @food.name, portion: @food.portion, protein: @food.protein, sugar: @food.sugar }
    end

    assert_redirected_to food_path(assigns(:food))
  end

  test "should show food" do
    get :show, id: @food
    assert_response :success
  end

  test "should get edit" do
    get :edit, id: @food
    assert_response :success
  end

  test "should update food" do
    patch :update, id: @food, food: { calories: @food.calories, carb: @food.carb, category: @food.category, fat: @food.fat, fiber: @food.fiber, name: @food.name, portion: @food.portion, protein: @food.protein, sugar: @food.sugar }
    assert_redirected_to food_path(assigns(:food))
  end

  test "should destroy food" do
    assert_difference('Food.count', -1) do
      delete :destroy, id: @food
    end

    assert_redirected_to foods_path
  end
end

foods_controller.rb

class FoodsController < ApplicationController
  before_action :set_food, only: [:show, :edit, :update, :destroy]
  before_filter :authorize, only: [:create, :delete]

  # GET /foods
  # GET /foods.json
  def index
    @foods = Food.order(:name)

    # @foods = @foods.sort_by &:name
    # @users.sort! { |a,b| a.name.downcase <=> b.name.downcase }
    @food_categories = Food::CATEGORIES.keys.sort
    # @current_category ||= params(:category)
    day_selected = params[:day_selected]
    meal_selected = params[:meal_selected]
  end

  # GET /foods/1
  # GET /foods/1.json
  def show
  end

  # GET /foods/new
  def new
    @food = Food.new
  end

  # GET /foods/1/edit
  def edit

  end

  # POST /foods
  # POST /foods.json
  def create
    @food = Food.new(food_params)

    respond_to do |format|
      if @food.save
        format.html { redirect_to foods_url, notice: 'Food was successfully created.' }
        format.json { render :show, status: :created, location: @food }
      else
        format.html { render :new }
        format.json { render json: @food.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /foods/1
  # PATCH/PUT /foods/1.json
  def update
    respond_to do |format|
      if @food.update(food_params)
        format.html { redirect_to foods_url, notice: 'Food was successfully updated.' }
        format.json { render :show, status: :ok, location: @food }
      else
        format.html { render :edit }
        format.json { render json: @food.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /foods/1
  # DELETE /foods/1.json
  def destroy
    #current_user.entries.where(food_id: "#{@food.id}").delete_all
    @food.destroy
    respond_to do |format|
      format.html { redirect_to foods_url, notice: 'Food was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_food
      @food = Food.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def food_params
      params.require(:food).permit(:name, :portion, :calories, :fat, :carb, :protein,
                                    :fiber, :sugar, :category, :added_by, :cholesterol,
                                    :potassium, :sodium, :trans_fat, :monounsaturated_fat,
                                    :polyunsaturated_fat, :saturated_fat)
    end

end

food.rb

class Food < ActiveRecord::Base

  belongs_to :user

  CATEGORIES = { "Dairy & Eggs" => "Dairy",
                "Meat & Fish" => "Animal",
                "Fruits & Vegetables" => "Plant",
                "Nuts, beans & legumes" => "Nuts",
                "Grains" => "Grains",
                "Drinks" => "Beverages",
                "Sweets & Candy" => "Sweets",
                "Oils & Fats" => "Oils",
                "Other" => "Other" }

  validates :name, presence: true

  validates :portion, presence: true

  validates :calories, presence: true

  validates :fat, presence: true

  validates :carb, presence: true

  validates :protein, presence: true

  validates :category, presence: true

end

Answer 1

尝试在您的案例json或html中指定测试示例中的格式。

post :create, format: json, food: { ... }

尝试测试控制器时ArgumentError参数太少

1 个答案: