src/third_party/mozjs-45/js/src/jit-test/tests/debug/Memory-drainAllocationsLog-05.js

// Test an empty allocation log.

const root = newGlobal();
const dbg = new Debugger();
dbg.addDebuggee(root)

dbg.memory.trackingAllocationSites = true;
const allocs = dbg.memory.drainAllocationsLog();
assertEq(allocs.length, 0);