Replace reference to WebSocket global with ActionCable.adapters.WebSocket

The WebSocket dependency of ActionCable.Connection was made configurable
in 66901c1849efae74c8a58fe0cb36afd487c067cc

However, the reference here in Connection#getState was not updated to
use the configurable property. This change remedies that and adds a test
to verify it. Additionally, it backfills a test to ensure that
Connection#open uses the configurable property.

1 files changed, 2 insertions, 2 deletions

diff --git a/actioncable/app/assets/javascripts/action_cable.js b/actioncable/app/assets/javascripts/action_cable.js
index 90e8e6b99b..ee11c62eb6 100644
--- a/actioncable/app/assets/javascripts/action_cable.js
+++ b/actioncable/app/assets/javascripts/action_cable.js
@@ -224,8 +224,8 @@
     };
     Connection.prototype.getState = function getState() {
       if (this.webSocket) {
-        for (var state in WebSocket) {
-          if (WebSocket[state] === this.webSocket.readyState) {
+        for (var state in adapters.WebSocket) {
+          if (adapters.WebSocket[state] === this.webSocket.readyState) {
             return state.toLowerCase();
           }
         }