1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Memory-trackingAllocationSites-01.js b/js/src/jit-test/tests/debug/Memory-trackingAllocationSites-01.js
new file mode 100644
index 000000000..4175dfeda
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Memory-trackingAllocationSites-01.js
@@ -0,0 +1,37 @@
+// Test that we can track allocation sites by setting
+// Debugger.Memory.prototype.trackingAllocationSites to true and then get the
+// allocation site via Debugger.Object.prototype.allocationSite.
+
+const root = newGlobal();
+
+const dbg = new Debugger();
+const wrappedRoot = dbg.addDebuggee(root);
+
+assertEq(dbg.memory.trackingAllocationSites, false);
+dbg.memory.trackingAllocationSites = true;
+assertEq(dbg.memory.trackingAllocationSites, true);
+
+root.eval("(" + function immediate() {
+  this.tests = [
+    { name: "object literal",  object: ({}),                  line: Error().lineNumber },
+    { name: "array literal",   object: [],                    line: Error().lineNumber },
+    { name: "regexp literal",  object: /(two|2)\s*problems/,  line: Error().lineNumber },
+    { name: "new constructor", object: new function Ctor(){}, line: Error().lineNumber },
+    { name: "new Object",      object: new Object(),          line: Error().lineNumber },
+    { name: "new Array",       object: new Array(),           line: Error().lineNumber },
+    { name: "new Date",        object: new Date(),            line: Error().lineNumber }
+  ];
+} + "());");
+
+dbg.memory.trackingAllocationSites = false;
+assertEq(dbg.memory.trackingAllocationSites, false);
+
+for (let { name, object, line } of root.tests) {
+  print("Entering test: " + name);
+
+  let wrappedObject = wrappedRoot.makeDebuggeeValue(object);
+  let allocationSite = wrappedObject.allocationSite;
+  print("Allocation site: " + allocationSite);
+
+  assertEq(allocationSite.line, line);
+}