无法通过 Post 在 Rspec 中创建模型

Question

我正在尝试在 Rspec 中创建一个用户：

require "rails_helper"

RSpec.describe UsersController, type: :controller do
  describe "POST #index" do
    it 'should create a user' do
      post :create, {name: "name1", age: 25}.to_json, format: :json
      # .............

但是我每次都收到验证错误：name can't be blank, age can't be blank

UserController接受json:

  def create
    @user = User.new(params1)
    if @user.save
      render json: @user
    else
      render json: @user.errors, status: :unprocessable_entity
    end
  end


  def params1
    params.permit(:id, :name, :age)
  end

Answer 1

发送到 create 的参数不应该是 json 字符串，而是散列。

来自rspec documentation :

require "rails_helper"

RSpec.describe WidgetsController, :type => :controller do
  describe "responds to" do    
    it "responds to custom formats when provided in the params" do
      post :create, { :widget => { :name => "Any Name" }, :format => :json }
      expect(response.content_type).to eq "application/json"
    end
  end
end

所以你的测试应该是：

require "rails_helper"

RSpec.describe UsersController, type: :controller do
  describe "POST #create" do
    it 'should create a user' do
      post :create, { user: {name: "name1", age: 25}, :format => :json }
      ...