Question

我想在Rspec中将单元测试写入课程：

class Item < ActiveRecord::Base
  has_many :cart_items
  has_many :carts, through: :cart_items

  validates :price, presence: true
  validates :name, presence: true
end

我不确定我应该在这里测试一下......你能给出一些提示吗？

Answer 1

使用shoulda-matchers gem，你可以这样做

describe Item do
  it {should validate_presence_of :price}
  it {should validate_presence_of :name}
  it {should have_many(:cart_items)}
  it {should have_many(:carts).through(:cart_items)}
end

Answer 2

在spec/models/item_spec.rb中你可以编写单元测试。

我只是给你一个例子，你应该在你的特定模型的规范中写下什么

require 'spec_helper'
describe Task do
   before do
      @task = Task.new(name: "Example1", price:123)
   end 
   subject { @task }

   it { should respond_to(:name) } 
   it { should respond_to(:price) }  
   it { should respond_to(:cart_items) }   
   it { should be_valid }

   describe "when name is not present" do
      before { @task.name = " " }
         it { should_not be_valid } 
   end 
end

您可以根据验证，要求，字段，关联等编写更多内容

如何将单元测试写入此特定的ActiveRecord类？

2 个答案: