调用ActiveJob :: TestHelper方法会导致SystemStackError：堆栈级别太深

I'm using Rails 5.1.6 and Ruby 2.5.1 (though had the same error on previous builds).

我正在使用Rails 5.1.6和Ruby 2.5.1（虽然在以前的版本中有相同的错误）。

Switching over a mailer from deliver_now to deliver_later. Works fine in my browser, however I'm stuck trying to get my integration tests working. Seemingly using any methods from ActiveJob::TestHelper triggers the following error:

将邮件从deliver_now切换到deliver_later。在我的浏览器中正常工作，但是我试图让我的集成测试工作。看似使用ActiveJob :: TestHelper中的任何方法会触发以下错误：

Error: SendJobToContactsTest#test_send_job_to_contacts: SystemStackError: stack level too deep

错误：SendJobToContactsTest＃test_send_job_to_contacts：SystemStackError：堆栈级别太深

Integration Test Code:

集成测试代码：

require 'test_helper'
include ActiveJob::TestHelper

class SendJobToContactsTest < ActionDispatch::IntegrationTest
...
end

This works fine:

这很好用：

assert_difference 'ContactJob.count', 1 do
    patch update_contacts_user_job_path(@user, @job), params: {job: {contact_ids: [ @contact2.id], message: {message_text: "This is a test"}}}
end

Using performed_enqueued_jobs triggers the SystemStackError:

使用done_enqueued_jobs会触发SystemStackError：

assert_difference 'ContactJob.count', 1 do
  perform_enqueued_jobs do
     patch update_contacts_user_job_path(@user, @job), params: {job: {contact_ids: [ @contact2.id], message: {message_text: "This is a test"}}}
  end
end

Even just assert_enqueued_jobs without performed_enqueued_jobs triggers the SystemStackError:

即使只是assert_enqueued_jobs而没有done_enqueued_jobs也会触发SystemStackError：

assert_difference 'ContactJob.count', 1 do
  patch update_contacts_user_job_path(@user, @job), params: {job: {contact_ids: [ @contact2.id], message: {message_text: "This is a test"}}}
  assert_enqueued_jobs 1
end

And turns out even just calling an empty perform_enqueued_jobs block (with none of my code involved) triggers the stack level too deep issue:

事实证明，即使只调用一个空的perform_enqueued_jobs块（不涉及我的代码）也会触发堆栈级别太深的问题：

perform_enqueued_jobs do
 # do something later
end

1 个解决方案

#1

Turns out the issue was where I had the include statement. Moving it within the class solved the issue:

原来问题是我有include语句的地方。在课堂上移动它解决了这个问题：

require 'test_helper'


class SendJobToContactsTest < ActionDispatch::IntegrationTest
  include ActiveJob::TestHelper