1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Promise/allSettled/invoke-then.js b/js/src/tests/test262/built-ins/Promise/allSettled/invoke-then.js
new file mode 100644
index 0000000000..e042be9470
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Promise/allSettled/invoke-then.js
@@ -0,0 +1,55 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+  Invocation of the instance's `then` method
+esid: sec-promise.allsettled
+info: |
+  6. Let result be PerformPromiseAllSettled(iteratorRecord, C, promiseCapability).
+  7. If result is an abrupt completion, then
+    a. If iteratorRecord.[[Done]] is false, set result to IteratorClose(iteratorRecord, result).
+    b. IfAbruptRejectPromise(result, promiseCapability).
+
+  Runtime Semantics: PerformPromiseAllSettled
+
+  z. Perform ? Invoke(nextPromise, "then", « resolveElement, rejectElement »).
+features: [Promise.allSettled]
+---*/
+
+var p1 = new Promise(function() {});
+var p2 = new Promise(function() {});
+var p3 = new Promise(function() {});
+var callCount = 0;
+var currentThis = p1;
+var nextThis = p2;
+var afterNextThis = p3;
+
+p1.then = p2.then = p3.then = function(a, b) {
+  assert.sameValue(typeof a, 'function', 'type of first argument');
+  assert.sameValue(
+    a.length,
+    1,
+    'The length property of a promise resolve function is 1.'
+  );
+  assert.sameValue(typeof b, 'function', 'type of second argument');
+  assert.sameValue(
+    b.length,
+    1,
+    'The length property of a promise reject function is 1.'
+  );
+  assert.sameValue(arguments.length, 2, '`then` invoked with two arguments');
+  assert.sameValue(this, currentThis, '`this` value');
+
+  currentThis = nextThis;
+  nextThis = afterNextThis;
+  afterNextThis = null;
+
+  callCount += 1;
+};
+
+Promise.allSettled([p1, p2, p3]);
+
+assert.sameValue(callCount, 3, '`then` invoked once for every iterated value');
+
+reportCompare(0, 0);