Add channel test generator

4 files changed, 34 insertions, 1 deletions

diff --git a/actioncable/lib/rails/generators/channel/USAGE b/actioncable/lib/rails/generators/channel/USAGE
index ea9662436c..bb5dd7e2db 100644
--- a/actioncable/lib/rails/generators/channel/USAGE
+++ b/actioncable/lib/rails/generators/channel/USAGE
@@ -7,6 +7,7 @@ Example:
 ========
     rails generate channel Chat speak
 
-    creates a Chat channel class and JavaScript asset:
+    creates a Chat channel class, test and JavaScript asset:
         Channel:    app/channels/chat_channel.rb
+        Test:       test/channels/chat_channel_test.rb
         Assets:     app/javascript/channels/chat_channel.js
diff --git a/actioncable/lib/rails/generators/channel/channel_generator.rb b/actioncable/lib/rails/generators/channel/channel_generator.rb
index ef51981e89..0b80d1f96b 100644
--- a/actioncable/lib/rails/generators/channel/channel_generator.rb
+++ b/actioncable/lib/rails/generators/channel/channel_generator.rb
@@ -11,6 +11,8 @@ module Rails
 
       check_class_collision suffix: "Channel"
 
+      hook_for :test_framework
+
       def create_channel_file
         template "channel.rb", File.join("app/channels", class_path, "#{file_name}_channel.rb")
 
diff --git a/actioncable/lib/rails/generators/test_unit/channel_generator.rb b/actioncable/lib/rails/generators/test_unit/channel_generator.rb
new file mode 100644
index 0000000000..7d13a12f0a
--- /dev/null
+++ b/actioncable/lib/rails/generators/test_unit/channel_generator.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module TestUnit
+  module Generators
+    class ChannelGenerator < ::Rails::Generators::NamedBase
+      source_root File.expand_path("templates", __dir__)
+
+      check_class_collision suffix: "ChannelTest"
+
+      def create_test_files
+        template "channel_test.rb", File.join("test/channels", class_path, "#{file_name}_channel_test.rb")
+      end
+
+      private
+        def file_name # :doc:
+          @_file_name ||= super.sub(/_channel\z/i, "")
+        end
+    end
+  end
+end
diff --git a/actioncable/lib/rails/generators/test_unit/templates/channel_test.rb.tt b/actioncable/lib/rails/generators/test_unit/templates/channel_test.rb.tt
new file mode 100644
index 0000000000..301dc0b6fe
--- /dev/null
+++ b/actioncable/lib/rails/generators/test_unit/templates/channel_test.rb.tt
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class <%= class_name %>ChannelTest < ActionCable::Channel::TestCase
+  # test "subscribes" do
+  #   subscribe
+  #   assert subscription.confirmed?
+  # end
+end