1 files changed, 22 insertions, 0 deletions
diff --git a/remote/cdp/test/browser/browser_session.js b/remote/cdp/test/browser/browser_session.js
new file mode 100644
index 0000000000..659021182b
--- /dev/null
+++ b/remote/cdp/test/browser/browser_session.js
@@ -0,0 +1,22 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function({ CDP }) {
+  const { webSocketDebuggerUrl } = await CDP.Version();
+  const client = await CDP({ target: webSocketDebuggerUrl });
+
+  try {
+    await client.send("Hoobaflooba");
+  } catch (e) {
+    ok(e.message.match(/Invalid method format/));
+  }
+  try {
+    await client.send("Hooba.flooba");
+  } catch (e) {
+    ok(e.message.match(/UnknownMethodError/));
+  }
+
+  await client.close();
+});