1 files changed, 17 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/test/browser/browser_task_next_test.js b/toolkit/mozapps/extensions/test/browser/browser_task_next_test.js
new file mode 100644
index 0000000000..f8e3293b82
--- /dev/null
+++ b/toolkit/mozapps/extensions/test/browser/browser_task_next_test.js
@@ -0,0 +1,17 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that we throw if a test created with add_task()
+// calls run_next_test
+
+add_task(async function run_next_throws() {
+  let err = null;
+  try {
+    run_next_test();
+  } catch (e) {
+    err = e;
+    info("run_next_test threw " + err);
+  }
+  ok(err, "run_next_test() should throw an error inside an add_task test");
+});