1 files changed, 25 insertions, 0 deletions
diff --git a/remote/cdp/test/xpcshell/test_CDPConnection.js b/remote/cdp/test/xpcshell/test_CDPConnection.js
new file mode 100644
index 0000000000..848155633f
--- /dev/null
+++ b/remote/cdp/test/xpcshell/test_CDPConnection.js
@@ -0,0 +1,25 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const { splitMethod } = ChromeUtils.importESModule(
+  "chrome://remote/content/cdp/CDPConnection.sys.mjs"
+);
+
+add_task(function test_Connection_splitMethod() {
+  for (const t of [42, null, true, {}, [], undefined]) {
+    Assert.throws(() => splitMethod(t), /TypeError/, `${typeof t} throws`);
+  }
+  for (const s of ["", ".", "foo.", ".bar", "foo.bar.baz"]) {
+    Assert.throws(
+      () => splitMethod(s),
+      /Invalid method format: '.*'/,
+      `"${s}" throws`
+    );
+  }
+  deepEqual(splitMethod("foo.bar"), {
+    domain: "foo",
+    command: "bar",
+  });
+});