1 files changed, 10 insertions, 2 deletions
diff --git a/actioncable/test/subscription_adapter/redis_test.rb b/actioncable/test/subscription_adapter/redis_test.rb
index 3dc995331a..7874bfcfa8 100644
--- a/actioncable/test/subscription_adapter/redis_test.rb
+++ b/actioncable/test/subscription_adapter/redis_test.rb
@@ -30,14 +30,22 @@ class RedisAdapterTest::AlternateConfiguration < RedisAdapterTest
 end
 
 class RedisAdapterTest::Connector < ActionCable::TestCase
-  test "slices url, host, port, db, and password from config" do
-    config = { url: 1, host: 2, port: 3, db: 4, password: 5 }
+  test "slices url, host, port, db, password and id from config" do
+    config = { url: 1, host: 2, port: 3, db: 4, password: 5, id: "Some custom ID" }
 
     assert_called_with ::Redis, :new, [ config ] do
       connect config.merge(other: "unrelated", stuff: "here")
     end
   end
 
+  test "adds default id if it is not specified" do
+    config = { url: 1, host: 2, port: 3, db: 4, password: 5, id: "ActionCable1-PID-#{$$}" }
+
+    assert_called_with ::Redis, :new, [ config ] do
+      connect config
+    end
+  end
+
   def connect(config)
     ActionCable::SubscriptionAdapter::Redis.redis_connector.call(config)
   end