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diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/gc-has-one-chance-to-call-cleanupCallback-for-object.js b/js/src/tests/test262/built-ins/FinalizationRegistry/gc-has-one-chance-to-call-cleanupCallback-for-object.js
new file mode 100644
index 0000000000..276574af63
--- /dev/null
+++ b/js/src/tests/test262/built-ins/FinalizationRegistry/gc-has-one-chance-to-call-cleanupCallback-for-object.js
@@ -0,0 +1,97 @@
+// |reftest| skip-if(!this.hasOwnProperty('FinalizationRegistry')) async -- FinalizationRegistry is not enabled unconditionally
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-finalization-registry-target
+description: >
+  cleanupCallback has only one optional chance to be called for a GC that cleans
+  up a registered Object target.
+info: |
+  FinalizationRegistry.prototype.cleanupSome ( [ _callback_ ] )
+  3. If _callback_ is present and IsCallable(_callback_) is *false*, throw a
+    *TypeError* exception.
+  4. Perform ? CleanupFinalizationRegistry(_finalizationRegistry_, _callback_).
+  5. Return *undefined*.
+
+  Execution
+
+  At any time, if a set of objects and/or symbols _S_ is not live, an ECMAScript
+  implementation may perform the following steps atomically:
+
+  1. For each element _value_ of _S_, do
+    ...
+    b. For each FinalizationRegistry _fg_ such that _fg_.[[Cells]] contains a
+      Record _cell_ such that _cell_.[[WeakRefTarget]] is _value_,
+      i. Set _cell_.[[WeakRefTarget]] to ~empty~.
+      ii. Optionally, perform HostEnqueueFinalizationRegistryCleanupJob(_fg_).
+features: [FinalizationRegistry.prototype.cleanupSome, FinalizationRegistry, async-functions, host-gc-required]
+flags: [async, non-deterministic]
+includes: [async-gc.js, compareArray.js]
+---*/
+
+let cleanupCallback = 0;
+let holdings = [];
+function cb(holding) {
+  holdings.push(holding);
+}
+
+let finalizationRegistry = new FinalizationRegistry(function() {
+  cleanupCallback += 1;
+});
+
+function emptyCells() {
+  let target = {};
+  finalizationRegistry.register(target, 'a');
+
+  let prom = asyncGC(target);
+  target = null;
+
+  return prom;
+}
+
+emptyCells().then(async function() {
+  await Promise.resolve(1);
+
+  finalizationRegistry.cleanupSome(cb);
+
+  // cleanupSome will be invoked if there are empty cells left. If the
+  // cleanupCallback already ran, then cb won't be called.
+  let expectedCalled = cleanupCallback === 1 ? 0 : 1;
+  // This asserts the registered object was emptied in the previous GC.
+  assert.sameValue(holdings.length, expectedCalled, 'cleanupSome callback for the first time');
+
+  // At this point, we can't assert if cleanupCallback was called, because it's
+  // optional. Although, we can finally assert it's not gonna be called anymore
+  // for the other executions of the Garbage Collector.
+  // The chance of having it called only happens right after the
+  // cell.[[WeakRefTarget]] is set to empty.
+  assert(cleanupCallback >= 0, 'cleanupCallback might be 0');
+  assert(cleanupCallback <= 1, 'cleanupCallback might be 1');
+
+  // Restoring the cleanupCallback variable to 0 will help us asserting the
+  // finalizationRegistry callback is not called again.
+  cleanupCallback = 0;
+
+  await $262.gc();
+  await Promise.resolve(2); // tick
+
+  finalizationRegistry.cleanupSome(cb);
+
+  assert.sameValue(holdings.length, expectedCalled, 'cleanupSome callback is not called anymore, no empty cells');
+  assert.sameValue(cleanupCallback, 0, 'cleanupCallback is not called again #1');
+
+  await $262.gc();
+  await Promise.resolve(3); // tick
+
+  finalizationRegistry.cleanupSome(cb);
+
+  assert.sameValue(holdings.length, expectedCalled, 'cleanupSome callback is not called again #2');
+  assert.sameValue(cleanupCallback, 0, 'cleanupCallback is not called again #2');
+
+  if (holdings.length) {
+    assert.compareArray(holdings, ['a']);
+  }
+
+  await $262.gc();
+}).then($DONE, resolveAsyncGC);