1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/ListFormat/prototype/formatToParts/iterable.js b/js/src/tests/test262/intl402/ListFormat/prototype/formatToParts/iterable.js
new file mode 100644
index 0000000000..053a30c2b9
--- /dev/null
+++ b/js/src/tests/test262/intl402/ListFormat/prototype/formatToParts/iterable.js
@@ -0,0 +1,47 @@
+// Copyright 2019 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.ListFormat.prototype.formatToParts
+description: >
+    Checks the behavior of Abstract Operation StringListFromIterable
+    called by Intl.ListFormat.prototype.formatToParts().
+info: |
+    StringListFromIterable
+    1. If iterable is undefined, then
+      a. Return a new empty List.
+    2. Let iteratorRecord be ? GetIterator(iterable).
+    3. Let list be a new empty List.
+    4. Let next be true.
+    5. Repeat, while next is not false
+      a. Set next to ? IteratorStep(iteratorRecord).
+      b. If next is not false, then
+        i. Let nextValue be ? IteratorValue(next).
+        ii. If Type(nextValue) is not String, then
+          1. Let error be ThrowCompletion(a newly created TypeError object).
+          2. Return ? IteratorClose(iteratorRecord, error).
+        iii. Append nextValue to the end of the List list.
+    6. Return list.
+features: [Intl.ListFormat]
+---*/
+
+let lf = new Intl.ListFormat();
+
+// Test the success case.
+let iterable_of_strings = {
+  [Symbol.iterator]() {
+    return this;
+  },
+  count: 0,
+  next() {
+    this.count++
+    if (this.count < 4) {
+      return {done: false, value: String(this.count)};
+    }
+    return {done:true}
+  }
+};
+lf.formatToParts(iterable_of_strings);
+assert.sameValue(iterable_of_strings.count, 4);
+
+reportCompare(0, 0);