Add Action Cable testing

[palkan]

This PR migrates action-cable-testing gem RSpec functionality into rspec-rails (since core functionality has been merged into Rails 6).

You can check the existing gem documentation (RSpec-like) to see what's coming: https://relishapp.com/palkan/action-cable-testing/docs.

What's inside:

• Added @rails_post_6 tag for 🥒
• Add have_broadcasted_to / broadcast_to matcher (=> corresponds to Action cable testing rails/rails#33659)
• Add channels unit-testing support ( => corresponds to Add ActionCable::Channel::TestCase rails/rails#33969)
• Add connections unit-testing support (=> corresponds to Add ActionCable::Connection::TestCase rails/rails#34845)
• Generators (=> corresponds to Add Action Cable testing guides and generators  rails/rails#34933).

Closes #1606

[palkan]

@benoittgt @samphippen Hey folks, what should I do to make Travis show me the failures?)

[benoittgt]

Hello @palkan

Sorry busy weekend. Maybe you can comment those lines?
https://github.com/rspec/rspec-rails/blob/master/.travis.yml#L210-L213

I will have a look on your PR tomorrow. Thanks for the hard work.

[fables-tales]

@palkan please rebase this on top of the 4-0-dev branch, as this'll have to make it in to 4-0 at this point.

[palkan]

@samphippen

please rebase this on top of the 4-0-dev branch

Done!

[benoittgt]

Very good job. I have few questions related to documentation but also where matcher are defined.

[palkan]

@benoittgt @JonRowe thanks for the feedback! All fixed.

@samphippen The build seems green: https://travis-ci.org/rspec/rspec-rails/builds/526676636 (Rails 4.2 specs are failing for non-related to this PR reasons, looks it's no longer supported?).
Also, to make the build pass the RuboCop check I had to freeze the version (~> 0.67.0), the new one breaks it (yeah, as always). That should be fixed in the base branch, I think.

[JonRowe]

@samphippen can you give me a final review for this, you're more familiar with action cable!

[fables-tales]

This is overall a high quality PR, I had a few nits, but if you can address them, I'll merge this down!

[fables-tales]

WDYT about >= 6?

[fables-tales]

you need to kill this blankline.

[fables-tales]

@palkan BTW you should feel free to DM me on twitter if you need my attention, it is by far and away my fastest response time channel.

[fables-tales]

LGTM, will merge on green!

[palkan]

Looks like we're blocked by RuboCop again (0.69 release notes)

@benoittgt @samphippen Is anyone going to fix this in 4-0-dev?

[benoittgt]

@palkan We merged #2126 this afternoon sorry. It should be good. 😊

[palkan]

@benoittgt My bad, I should have checked(

Anyway, we're green 🎉

[benoittgt]

Thanks a lot @palkan. Awesome job! 👏

[shyam04261996]

How to test cases this chat_channel.rb file
def speak(data)
@chat = BxBlockChat::Chat.find(params[:id])
message = BxBlockChat::ChatMessage.create!(account_id: current_user.id, chat_id: @chat.id, message: data["message"])
if message && @chat.accounts
@chat.accounts.each do |account|
if account.id != current_user.id && account.status == "offline" && account.get_email_notifications
::BxBlockChat::ChatsMailer.with(
to: account.email,
chat: @chat.name
).new_message.deliver_now
end
end
end
ActionCable.server.broadcast build_room_id(@chat.id), message: message.message
end

[pirj]

@shyam04261996 please use our help channels http://rspec.info/help/ or Stackoverflow.
We reserve the GutHub for feature requests/bug reports.