Bug 1713775 - [marionette] Fail session creation if the webSocketUrl capability is passed r=remote-protocol-reviewers,marionette-reviewers,jgraham

Until a BiDi implementation can be successfully started, creating a session with the webSocketUrl capability should throw.

Differential Revision: https://phabricator.services.mozilla.com/D116590

remote/marionette/session.js

@@ -650,6 +650,11 @@ class Capabilities extends Map {
           }
           break;
 
+        case "webSocketUrl":
+          throw new error.InvalidArgumentError(
+            "webSocketURL is not supported yet"
+          );
+
         case "moz:accessibilityChecks":
           assert.boolean(v, pprint`Expected ${k} to be boolean, got ${v}`);
           break;

remote/marionette/test/xpcshell/test_session.js

@@ -614,6 +614,7 @@ add_test(function test_Capabilities_fromJSON() {
     () => fromJSON({ "moz:webdriverClick": 1 }),
     /InvalidArgumentError/
   );
+  Assert.throws(() => fromJSON({ webSocketUrl: true }), /InvalidArgumentError/);
 
   run_next_test();
 });

testing/marionette/harness/marionette_harness/tests/unit/test_capabilities.py

@@ -249,3 +249,9 @@ class TestCapabilityMatching(MarionetteTestCase):
                 SessionNotCreatedException, "InvalidArgumentError"
             ):
                 self.marionette.start_session({"unhandledPromptBehavior": behavior})
+
+    def test_web_socket_url(self):
+        with self.assertRaisesRegexp(
+            SessionNotCreatedException, "InvalidArgumentError"
+        ):
+            self.marionette.start_session({"webSocketUrl": True})