`rspec` - 比較兩個陣列的長度相互之間的差異

Question

在index方法中有2個數組，我想測試數組的長度是否相等，但它不工作（手動測試後數組長度相等）

def index 
    @countries = get_countries() 
    @capitals = get_capitals() 
end 

Rspec的文件：

describe CountriesController do 
    describe 'index' do 
    it 'countries.length == capitals.length' do 
     expect(assigns(countries.length)).to eq (assigns(capitals.length)) 
    end 
    end 
end 

Answer 1

看起來不像你正在爲這一行動的請求...這是...哪裏是get :index電話嗎？

Answer 2

它應該是這樣的：

describe CountriesController do 
    describe 'index' do 
    it 'countries.length == capitals.length' do 
     get :index 
     expect(assigns(:countries).length).to eq assigns(:capitals).length 
    end 
    end 
end