1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/devtools/gc-ubench/benchmarks/expandoEvents.js b/js/src/devtools/gc-ubench/benchmarks/expandoEvents.js
new file mode 100644
index 000000000..70ff780c4
--- /dev/null
+++ b/js/src/devtools/gc-ubench/benchmarks/expandoEvents.js
@@ -0,0 +1,26 @@
+window.tests.set('expandoEvents', (function() {
+var garbage = [];
+var garbageIndex = 0;
+return {
+    description: "var foo = [ textNode, textNode, ... ]",
+
+    load: (N) => { garbage = new Array(N); },
+    unload: () => { garbage = []; garbageIndex = 0; },
+
+    defaultGarbagePerFrame: "100K",
+    defaultGarbageTotal: "8",
+
+    makeGarbage: (N) => {
+        var a = [];
+        for (var i = 0; i < N; i++) {
+            var e = document.createEvent("Events");
+            e.initEvent("TestEvent", true, true);
+            e.color = ["tuna"];
+            a.push(e);
+        }
+        garbage[garbageIndex++] = a;
+        if (garbageIndex == garbage.length)
+            garbageIndex = 0;
+    }
+};
+})());