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+<!doctype html>
+<html>
+ <head>
+ <title>Bug 1150253 - Sanity test for the SpiderMonkey Debugger API's onGarbageCollection hook</title>
+ <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js">
+ </script>
+ </head>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1150253"
+ target="_blank">Mozilla Bug 1150253</a>
+
+ <script type="application/javascript">
+ SimpleTest.waitForExplicitFinish();
+
+ const { gc } = Cu.getJSTestingFunctions();
+
+ // Instantiate `Debugger` in a sandbox as Debugger requires to be created
+ // in a compartment different than the debuggee.
+ let sandbox = Cu.Sandbox(
+ Components.Constructor("@mozilla.org/systemprincipal;1", "nsIPrincipal")(),
+ {
+ freshCompartment: true,
+ wantGlobalProperties: ["ChromeUtils"],
+ }
+ );
+ Cu.evalInSandbox(`
+const { addDebuggerToGlobal } = ChromeUtils.importESModule(
+ 'resource://gre/modules/jsdebugger.sys.mjs'
+);
+addDebuggerToGlobal(globalThis);
+`, sandbox
+ );
+
+ const dbg = new sandbox.Debugger(this);
+
+ dbg.memory.onGarbageCollection = function (data) {
+ // Don't keep calling this hook after we finish.
+ dbg.memory.onGarbageCollection = undefined;
+ dbg.removeAllDebuggees();
+
+ ok(data, "The onGarbageCollection hook was fired.");
+ SimpleTest.finish();
+ };
+
+ gc();
+ </script>
+ </body>
+</html>