1 files changed, 41 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/head_ongc.js b/js/xpconnect/tests/unit/head_ongc.js
new file mode 100644
index 0000000000..85989f1d9d
--- /dev/null
+++ b/js/xpconnect/tests/unit/head_ongc.js
@@ -0,0 +1,41 @@
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/jsdebugger.jsm");
+
+const testingFunctions = Cu.getJSTestingFunctions();
+const systemPrincipal = Cc["@mozilla.org/systemprincipal;1"].createInstance(Ci.nsIPrincipal);
+
+function addTestingFunctionsToGlobal(global) {
+  for (let k in testingFunctions) {
+    global[k] = testingFunctions[k];
+  }
+  global.print = do_print;
+  global.newGlobal = newGlobal;
+  addDebuggerToGlobal(global);
+}
+
+function newGlobal() {
+  const global = new Cu.Sandbox(systemPrincipal, { freshZone: true });
+  addTestingFunctionsToGlobal(global);
+  return global;
+}
+
+addTestingFunctionsToGlobal(this);
+
+function executeSoon(f) {
+  Services.tm.mainThread.dispatch({ run: f },
+                                  Ci.nsIThread.DISPATCH_NORMAL);
+}
+
+// The onGarbageCollection tests don't play well gczeal settings and lead to
+// intermittents.
+if (typeof gczeal == "function") {
+  gczeal(0);
+}
+
+// Make sure to GC before we start the test, so that no zones are scheduled for
+// GC before we start testing onGarbageCollection hooks.
+gc();