1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Promise/race/resolved-sequence-extra-ticks.js b/js/src/tests/test262/built-ins/Promise/race/resolved-sequence-extra-ticks.js
new file mode 100644
index 0000000000..6336fa8900
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+++ b/js/src/tests/test262/built-ins/Promise/race/resolved-sequence-extra-ticks.js
@@ -0,0 +1,43 @@
+// |reftest| async
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-promise.race
+description: Resolution ticks are set in a predictable sequence with extra then calls
+info: |
+  PerformPromiseRace
+
+  Repeat,
+    Let next be IteratorStep(iteratorRecord).
+    If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
+    ReturnIfAbrupt(next).
+    If next is false, then
+      Set iteratorRecord.[[Done]] to true.
+      Return resultCapability.[[Promise]].
+    Let nextValue be IteratorValue(next).
+    If nextValue is an abrupt completion, set iteratorRecord.[[Done]] to true.
+    ReturnIfAbrupt(nextValue).
+    Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
+    Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], resultCapability.[[Reject]] »).
+
+flags: [async]
+includes: [promiseHelper.js]
+---*/
+
+let a = new Promise(resolve => resolve({}));
+let sequence = [1];
+Promise.all([
+  Promise.race([a]).then(resolved => {
+    sequence.push(4);
+  }),
+  a.then(() => {
+    sequence.push(3);
+  }).then(() => {
+    sequence.push(5);
+  }),
+]).then(() => {
+  assert.sameValue(sequence.length, 5);
+  checkSequence(sequence);
+}).then($DONE, $DONE);
+sequence.push(2);