1 files changed, 30 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_nodelistactor.js b/devtools/server/tests/xpcshell/test_nodelistactor.js
new file mode 100644
index 0000000000..eab6bb07e8
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_nodelistactor.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that a NodeListActor initialized with null nodelist doesn't cause
+// exceptions when calling NodeListActor.form.
+
+const {
+  NodeListActor,
+} = require("resource://devtools/server/actors/inspector/node.js");
+
+function run_test() {
+  check_actor_for_list(null);
+  check_actor_for_list([]);
+  check_actor_for_list(["fakenode"]);
+}
+
+function check_actor_for_list(nodelist) {
+  info("Checking NodeListActor with nodelist '" + nodelist + "' works.");
+  const actor = new NodeListActor({}, nodelist);
+  const form = actor.form();
+
+  // No exception occured as a exceptions abort the test.
+  ok(true, "No exceptions occured.");
+  equal(
+    form.length,
+    nodelist ? nodelist.length : 0,
+    "NodeListActor reported correct length."
+  );
+}