1 files changed, 16 insertions, 0 deletions
diff --git a/modules/libpref/test/unit_ipc/test_observed_prefs.js b/modules/libpref/test/unit_ipc/test_observed_prefs.js
new file mode 100644
index 000000000..c18f7f0fe
--- /dev/null
+++ b/modules/libpref/test/unit_ipc/test_observed_prefs.js
@@ -0,0 +1,16 @@
+var Ci = Components.interfaces;
+var Cc = Components.classes;
+
+function isParentProcess() {
+    let appInfo = Cc["@mozilla.org/xre/app-info;1"];
+    return (!appInfo || appInfo.getService(Ci.nsIXULRuntime).processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT);
+}
+
+function run_test() {
+  if (isParentProcess() == false) {
+      var pb = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
+      do_check_eq(pb.getBoolPref("Test.IPC.bool.new"), true);
+      do_check_eq(pb.getIntPref("Test.IPC.int.new"), 23);
+      do_check_eq(pb.getCharPref("Test.IPC.char.new"), "hey");
+  }
+}
+\ No newline at end of file