1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Promise/allSettled/call-resolve-element.js b/js/src/tests/test262/built-ins/Promise/allSettled/call-resolve-element.js
new file mode 100644
index 0000000000..511b3a14b1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Promise/allSettled/call-resolve-element.js
@@ -0,0 +1,51 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-promise.allsettled-resolve-element-functions
+description: >
+  Cannot change result value of resolved Promise.allSettled element.
+info: |
+  Promise.allSettled Resolve Element Functions
+
+  1. Let F be the active function object.
+  2. Let alreadyCalled be F.[[AlreadyCalled]].
+  3. If alreadyCalled.[[Value]] is true, return undefined.
+  4. Set alreadyCalled.[[Value]] to true.
+  ...
+includes: [promiseHelper.js]
+features: [Promise.allSettled]
+---*/
+
+var callCount = 0;
+
+function Constructor(executor) {
+  function resolve(values) {
+    callCount += 1;
+    checkSettledPromises(values, [
+      {
+        status: 'fulfilled',
+        value: 'expectedValue'
+      }
+    ], 'values');
+  }
+  executor(resolve, Test262Error.thrower);
+}
+Constructor.resolve = function(v) {
+  return v;
+};
+
+var p1 = {
+  then(onFulfilled, onRejected) {
+    onFulfilled('expectedValue');
+    onFulfilled('unexpectedValue');
+  }
+};
+
+assert.sameValue(callCount, 0, 'callCount before call to all()');
+
+Promise.allSettled.call(Constructor, [p1]);
+
+assert.sameValue(callCount, 1, 'callCount after call to all()');
+
+reportCompare(0, 0);