1 files changed, 39 insertions, 0 deletions
diff --git a/actioncable/test/channel/broadcasting_test.rb b/actioncable/test/channel/broadcasting_test.rb
new file mode 100644
index 0000000000..2cbfabc1d0
--- /dev/null
+++ b/actioncable/test/channel/broadcasting_test.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require "test_helper"
+require "stubs/test_connection"
+require "stubs/room"
+
+class ActionCable::Channel::BroadcastingTest < ActionCable::TestCase
+  class ChatChannel < ActionCable::Channel::Base
+  end
+
+  setup do
+    @connection = TestConnection.new
+  end
+
+  test "broadcasts_to" do
+    assert_called_with(
+      ActionCable.server,
+      :broadcast,
+      [
+        "action_cable:channel:broadcasting_test:chat:Room#1-Campfire",
+        "Hello World"
+      ]
+    ) do
+      ChatChannel.broadcast_to(Room.new(1), "Hello World")
+    end
+  end
+
+  test "broadcasting_for with an object" do
+    assert_equal "Room#1-Campfire", ChatChannel.broadcasting_for(Room.new(1))
+  end
+
+  test "broadcasting_for with an array" do
+    assert_equal "Room#1-Campfire:Room#2-Campfire", ChatChannel.broadcasting_for([ Room.new(1), Room.new(2) ])
+  end
+
+  test "broadcasting_for with a string" do
+    assert_equal "hello", ChatChannel.broadcasting_for("hello")
+  end
+end