1 files changed, 8 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 000000000..6a528b768
--- /dev/null
+++ b/layout/tools/layout-debug/tests/unit/test_componentsRegistered.js
@@ -0,0 +1,8 @@
+function run_test() {
+    do_check_true("@mozilla.org/layout-debug/regressiontester;1" in
+		  Components.classes);
+    do_check_true("@mozilla.org/layout-debug/layout-debuggingtools;1" in
+		  Components.classes);
+    do_check_true("@mozilla.org/commandlinehandler/general-startup;1?type=layoutdebug" in
+		  Components.classes);    
+}
+\ No newline at end of file