在Rails 中测试broadcasts_refreshes

Question

我可以在 ActiveJob 测试中测试

broadcasts_refreshes

吗？或者也许在我的模型测试中？我应该在其他地方测试这个吗？

根据

Broadcastable

文档（我添加了重点）：

broadcasts_refreshes

配置模型进行广播 流名称的“页面刷新” 在运行时通过

stream

符号调用

派生

ActionCable TestHelpers都要求您指定一个流，但没有提及如何找出派生流名称，因此 我检查了

Broadcastable

代码，看起来像

broadcasts_refreshes

当前使用

model_name.plural

来导出流名称。

然后我尝试使用

assert_broadcasts(stream, number, &block)

和

model_name.plural

的字符串结果（在我的例子中为“salesforce_contacts”）并将该代码作为流名称传递，但在这两种情况下，我都收到测试失败并显示以下消息：

1 broadcasts to salesforce_contacts expected, but 0 were sent.

# Testing the background job
require "test_helper"

class UpdateSFContactJobTest < ActiveJob::TestCase
  include ActionCable::TestHelper
  
  test "broadcasts refresh message on change" do
    contact = salesforce_contacts(:one)
  
    assert_broadcasts(contact.model_name.plural, 1) do
      UpdateSFContactJob.perform_now(contact)
    end
    #Assertion fails: 1 broadcasts to salesforce_contacts expected, but 0 were sent.
  end
end

# Testing the model
require "test_helper"

class Salesforce::ContactTest < ActiveSupport::TestCase
  include ActionCable::TestHelper

  test "broadcasts refresh after change" do
    contact = salesforce_contacts(:one)

    assert_broadcasts(contact.model_name.plural, 1) do
      contact.save
    end
    #Assertion fails: 1 broadcasts to salesforce_contacts expected, but 0 were sent.
  end
end

我的模型代码的摘要版本是：

class Salesforce::Contact < ApplicationRecord
  include Mappable

  belongs_to :user

  broadcasts_refreshes

  permit_unexpected_attributes

  has_attribute_mappings Id: :salesforce_id,
    AccountId: :account_id,
    npsp__Deceased__c: :deceased,
    Name: :combined_name
    #snip
end

Answer 1

turbo-rails

提供了

assert_turbo_stream_broadcasts

助手：

class ModelTest < ActiveSupport::TestCase
  test "the broadcast" do
    model = Model.create!
    model.broadcast_refresh

    assert_turbo_stream_broadcasts model, count: 1
  end
end

https://github.com/hotwired/turbo-rails#testing

---

它无法与

assert_broadcasts

一起使用的原因是您给它提供了错误的流名称：

>> model = Model.first
>> model.broadcast_refresh
[ActionCable] Broadcasting to Z2lkOi8vc3RhY2tvdmVyZmxvdy9BcnRpY2xlLzEzNA: "<turbo-stream action=\"refresh\"></turbo-stream>"
#                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# this is the expected stream name -'
# which is a global id in param form
>> model.to_gid_param
=> "Z2lkOi8vc3RhY2tvdmVyZmxvdy9BcnRpY2xlLzEzNA"

class ModelTest < ActiveSupport::TestCase
  test "the broadcast" do
    model = Model.create!
    model.broadcast_refresh

    assert_broadcasts model.to_gid_param, 1
  end
end