1 files changed, 55 insertions, 0 deletions
diff --git a/actioncable/test/javascript/src/unit/action_cable_test.js b/actioncable/test/javascript/src/unit/action_cable_test.js
new file mode 100644
index 0000000000..8847d87545
--- /dev/null
+++ b/actioncable/test/javascript/src/unit/action_cable_test.js
@@ -0,0 +1,55 @@
+import ActionCable from "../../../../app/javascript/action_cable/index"
+import {testURL} from "../test_helpers/index"
+
+const {module, test} = QUnit
+
+module("ActionCable", () => {
+  module("Adapters", () => {
+    module("WebSocket", () => {
+      test("default is window.WebSocket", assert => {
+        assert.equal(ActionCable.WebSocket, window.WebSocket)
+      })
+
+      test("configurable", assert => {
+        ActionCable.WebSocket = ""
+        assert.equal(ActionCable.WebSocket, "")
+      })
+    })
+
+    module("logger", () => {
+      test("default is window.console", assert => {
+        assert.equal(ActionCable.logger, window.console)
+      })
+
+      test("configurable", assert => {
+        ActionCable.logger = ""
+        assert.equal(ActionCable.logger, "")
+      })
+    })
+  })
+
+  module("#createConsumer", () => {
+    test("uses specified URL", assert => {
+      const consumer = ActionCable.createConsumer(testURL)
+      assert.equal(consumer.url, testURL)
+    })
+
+    test("uses default URL", assert => {
+      const pattern = new RegExp(`${ActionCable.INTERNAL.default_mount_path}$`)
+      const consumer = ActionCable.createConsumer()
+      assert.ok(pattern.test(consumer.url), `Expected ${consumer.url} to match ${pattern}`)
+    })
+
+    test("uses URL from meta tag", assert => {
+      const element = document.createElement("meta")
+      element.setAttribute("name", "action-cable-url")
+      element.setAttribute("content", testURL)
+
+      document.head.appendChild(element)
+      const consumer = ActionCable.createConsumer()
+      document.head.removeChild(element)
+
+      assert.equal(consumer.url, testURL)
+    })
+  })
+})