控制器test_should_update：參數是丟失或爲空值

Question

我嘗試測試更新功能的控制器類：

require 'test_helper' 

class AppointmentsControllerTest < ActionDispatch::IntegrationTest 
    include Devise::Test::IntegrationHelpers 
    include Warden::Test::Helpers 

    setup do 
    @heikoAppointment = appointments(:appointment_heiko) 
    @heiko = users(:user_heiko) 
    end 

test "should update appointment" do 
    login_as(@heiko) 
    @heiko.confirmed_at = Time.now 
    patch appointment_url(@heikoAppointment), params: { appointment: { } } 
    assert_redirected_to appointment_url(@heikoAppointment) 
    end 

但是我得到這個錯誤：

ActionController::ParameterMissing: param is missing or the value is empty: appointment 

在夾具我救一些數據約會：

appointment_heiko: 
user: user_heiko 
appointed: <%= Time.now + 2.weeks %> 
processed: <%= Time.now - 1.weeks %> 
shopping_list: shopping_list_lebensmittel 
shopper: user_shopper 
status: <%= Appointment.statuses[:finished] %> 

是否有人知道我可以從這些燈具容易的數據發送PARAMS因此次在我沒有得到這個錯誤了？我是一個初學者，任何代碼都可以幫助！

Answer 1

由於appointment鍵包含一個空的散列並且未發送，因此您會收到錯誤。

要從模型中獲取屬性，您可以使用 - 你猜對了 - .attributes。

所以@heikoAppointment.attributes會給你模型的屬性。

但是在測試更新方法時，您應該只傳遞要更新的屬性並聲明它們已更改。

您還應該測試不應該被修改的任何屬性都不會被改變。

before do 
    login_as(@heiko) 
end 

test "should update appointment" do 
    @heiko.confirmed_at = Time.now 
    patch appointment_url(@heikoAppointment), params: { appointment: { foo: 'bar' } } 
    assert_redirected_to appointment_url(@heikoAppointment) 
end 

test "should update appointment foo" do 
    patch appointment_url(@heikoAppointment), 
     params: { appointment: { foo: 'bar' } } 
    @heikoAppointment.reload # refreshes model from DB 
    assert_equals('bar', @heikoAppointment.foo) 
end 

test "should not update appointment baz" do 
    patch appointment_url(@heikoAppointment), 
      params: { appointment: { baz: 'woo' } } 
    @heikoAppointment.reload # refreshes model from DB 
    assert_not_equal('woo', @heikoAppointment.foo) 
end