1 files changed, 6 insertions, 0 deletions
diff --git a/layout/tools/layout-debug/tests/unit/test_componentsRegistered.js b/layout/tools/layout-debug/tests/unit/test_componentsRegistered.js
new file mode 100644
index 0000000000..eaf1783cb7
--- /dev/null
+++ b/layout/tools/layout-debug/tests/unit/test_componentsRegistered.js
@@ -0,0 +1,6 @@
+function run_test() {
+  Assert.ok("@mozilla.org/layout-debug/layout-debuggingtools;1" in Cc);
+  Assert.ok(
+    "@mozilla.org/commandlinehandler/general-startup;1?type=layoutdebug" in Cc
+  );
+}