1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Memory-drainAllocationsLog-08.js b/js/src/jit-test/tests/debug/Memory-drainAllocationsLog-08.js
new file mode 100644
index 0000000000..78803b9aa7
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Memory-drainAllocationsLog-08.js
@@ -0,0 +1,30 @@
+// Test retrieving the log multiple times.
+
+const root = newGlobal({newCompartment: true});
+const dbg = new Debugger();
+dbg.addDebuggee(root)
+
+root.eval([
+  "this.allocs = [];",
+  "this.doFirstAlloc = " + function () {
+    this.allocs.push({});           this.firstAllocLine = Error().lineNumber;
+  },
+  "this.doSecondAlloc = " + function () {
+    this.allocs.push(new Object()); this.secondAllocLine = Error().lineNumber;
+  }
+].join("\n"));
+
+dbg.memory.trackingAllocationSites = true;
+
+root.doFirstAlloc();
+let allocs1 = dbg.memory.drainAllocationsLog();
+root.doSecondAlloc();
+let allocs2 = dbg.memory.drainAllocationsLog();
+
+let allocs1Lines = allocs1.filter(x => !!x.frame).map(x => x.frame.line);
+assertEq(allocs1Lines.indexOf(root.firstAllocLine) != -1, true);
+assertEq(allocs1Lines.indexOf(root.secondAllocLine) == -1, true);
+
+let allocs2Lines = allocs2.filter(x => !!x.frame).map(x => x.frame.line);
+assertEq(allocs2Lines.indexOf(root.secondAllocLine) != -1, true);
+assertEq(allocs2Lines.indexOf(root.firstAllocLine) == -1, true);