From 2dac38815f94e1bc0864357cb67ed89e35a40d3d Mon Sep 17 00:00:00 2001 From: Alexey Shvayka Date: Fri, 8 May 2020 16:40:39 +0300 Subject: [PATCH] Add Array.from test --- .../iterator-method-emulates-undefined.js | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js diff --git a/test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js b/test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js new file mode 100644 index 0000000000..2c7d3ea1d1 --- /dev/null +++ b/test/annexB/built-ins/Array/from/iterator-method-emulates-undefined.js @@ -0,0 +1,29 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.from +description: > + [[IsHTMLDDA]] object as @@iterator method gets called. +info: | + Array.from ( items [ , mapfn [ , thisArg ] ] ) + + [...] + 4. Let usingIterator be ? GetMethod(items, @@iterator). + 5. If usingIterator is not undefined, then + [...] + c. Let iteratorRecord be ? GetIterator(items, sync, usingIterator). + + GetIterator ( obj [ , hint [ , method ] ] ) + + [...] + 4. Let iterator be ? Call(method, obj). + 5. If Type(iterator) is not Object, throw a TypeError exception. +features: [Symbol.iterator, IsHTMLDDA] +---*/ + +var items = {}; +items[Symbol.iterator] = $262.IsHTMLDDA; + +assert.throws(TypeError, function() { + Array.from(items); +});