Convert ActionCable tests from CoffeeScript to ES2015 and replace Blade with Karma and Rollup (#34440)

* Rename .coffee files in ActionCable test suite in prep for decaffeination

* Decaffeinate ActionCable tests

* Replace Blade with Karma and Rollup to run ActionCable JS tests

- Add karma and qunit devDependencies

- Add test script to ActionCable package

- Use rollup to bundle ActionCable tests

- Use karma as the ActionCable JS test runner

* Replace vendored mock-socket with package devDependency in ActionCable

* Move ActionCable yarn install to TravisCI before_install config

* Clean up decaffeinated ActionCable tests to use consistent formatting

1 files changed, 1 insertions, 6 deletions

diff --git a/actioncable/Rakefile b/actioncable/Rakefile
index 52c86eb5d7..35de50f05a 100644
--- a/actioncable/Rakefile
+++ b/actioncable/Rakefile
@@ -25,12 +25,7 @@ namespace :test do
   end
 
   task :integration do
-    require "blade"
-    if ENV["CI"]
-      Blade.start(interface: :ci)
-    else
-      Blade.start(interface: :runner)
-    end
+    system("yarn test") || raise("Failures")
   end
 end