1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DisplayNames/options-fallback-toString-abrupt-throws.js b/js/src/tests/test262/intl402/DisplayNames/options-fallback-toString-abrupt-throws.js
new file mode 100644
index 0000000000..231117aee4
--- /dev/null
+++ b/js/src/tests/test262/intl402/DisplayNames/options-fallback-toString-abrupt-throws.js
@@ -0,0 +1,59 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.DisplayNames
+description: >
+  Return abrupt completion from GetOption fallback
+info: |
+  Intl.DisplayNames ( locales , options )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
+    « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
+  ...
+  4. Let options be ? ToObject(options).
+  ...
+  8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
+  ...
+  10. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long").
+  ...
+  12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined).
+  13. If type is undefined, throw a TypeError exception.
+
+  GetOption ( options, property, type, values, fallback )
+
+  1. Let value be ? Get(options, property).
+  ...
+features: [Intl.DisplayNames, Symbol]
+locale: [en]
+---*/
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language', fallback: { toString() { throw new Test262Error(); }}
+  });
+}, 'from toString');
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    fallback: {toString: undefined, valueOf() {throw new Test262Error(); }}
+  });
+}, 'from valueOf');
+
+assert.throws(Test262Error, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    fallback: { [Symbol.toPrimitive]() { throw new Test262Error(); } }
+  });
+}, 'from ToPrimitive');
+
+assert.throws(TypeError, () => {
+  new Intl.DisplayNames('en', {
+    type: 'language',
+    fallback: Symbol()
+  });
+}, 'symbol value');
+
+reportCompare(0, 0);