The Tor Browser / file revision

 function test() {

   var startup_info = Components.classes["@mozilla.org/toolkit/app-startup;1"].getService(Components.interfaces.nsIAppStartup).getStartupInfo();

   // No .process info on mac

   // Check if we encountered a telemetry error for the the process creation

   // timestamp and turn the first test into a known failure.

   var telemetry = Cc["@mozilla.org/base/telemetry;1"].getService(Ci.nsITelemetry);

   var snapshot = telemetry.getHistogramById("STARTUP_MEASUREMENT_ERRORS")

                           .snapshot();

   if (snapshot.counts[0] == 0)

     ok(startup_info.process <= startup_info.main, "process created before main is run " + uneval(startup_info));

   else

     todo(false, "An error occurred while recording the process creation timestamp, skipping this test");

   // on linux firstPaint can happen after everything is loaded (especially with remote X)

   if (startup_info.firstPaint)

     ok(startup_info.main <= startup_info.firstPaint, "main ran before first paint " + uneval(startup_info));

   ok(startup_info.main < startup_info.sessionRestored, "Session restored after main " + uneval(startup_info));

 }