Rspec ruby rails

Question

我正在尝试创建一个正确设置的操作。

我一直收到错误消息：ArgumentError: Unknown keyword: topic

这是测试：

require 'rails_helper'

RSpec.describe TopicsController, type: :controller do

let(:my_topic) { Topic.create!(name: RandomData.random_sentence, description: RandomData.random_paragraph)}
describe "POST create" do
it "increases the number of topics by 1" do
  expect{ post :create, {topic: {name: RandomData.random_sentence, description: RandomData.random_paragraph}}}.to change(Topic,:count).by(1)
end

it "assigns Topic.last to @topic" do
  post :create, { topic: {name: RandomData.random_sentence, description: RandomData.random_paragraph}}
  expect(assigns(:topic)).to eq Topic.last
end

it "redirects to the new topic" do
  post :create, {topic: {name: RandomData.random_sentence, description: RandomData.random_paragraph}}
  expect(response).to redirect_to Topic.last
end
end

这是控制器：

  def create
@topic = Topic.new
@topic.name = params[:topic][:name]
@topic.description = params[:topic][:description]
@topic.public = params[:topic][:public]

if @topic.save
  redirect_to @topic, notice: "Topic was saved successfully."
else
  flash.now[:alert] = "Error creating topic.  Please try again"
  render :new
end
end

我试图找出导致此错误的原因，我已经盯着它看了好几个小时，并尝试多次编辑它，但都无济于事。我想不通。我一直在从事的项目的其余部分都还可以，但是我不明白为什么我无法成功转换主题一词。感谢您的观看。

Answer 1

问题是 post 方法将关键字参数作为第二个参数。

如果需要指定params，则应使用params关键字：

post :create, params: { topic: { name: ..., description: ... } }

Answer 2

将 :topic 替换为 :params。这是您的测试的预期关键字。 RSpec 已经很清楚你正在测试 Topic 因为你的规范文件是 TopicsController.

Rspec ruby rails

Rspec ruby rails

ruby

rspec

ruby-on-rails

rspec-rails

ruby-on-rails-5.1