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Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/from/mapfn-is-not-callable.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/from/mapfn-is-not-callable.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/from/mapfn-is-not-callable.js b/js/src/tests/test262/built-ins/TypedArray/from/mapfn-is-not-callable.js new file mode 100644 index 0000000000..ece0766bee --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/from/mapfn-is-not-callable.js @@ -0,0 +1,59 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-%typedarray%.from +description: Throw a TypeError exception is mapfn is not callable +info: | + 22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ) + + ... + 3. If mapfn was supplied and mapfn is not undefined, then + a. If IsCallable(mapfn) is false, throw a TypeError exception. + ... +includes: [testTypedArray.js] +features: [Symbol, Symbol.iterator, TypedArray] +---*/ + +var getIterator = 0; +var arrayLike = {}; +Object.defineProperty(arrayLike, Symbol.iterator, { + get: function() { + getIterator++; + } +}); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, null); +}, "mapfn is null"); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, 42); +}, "mapfn is a number"); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, ""); +}, "mapfn is a string"); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, {}); +}, "mapfn is an ordinary object"); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, []); +}, "mapfn is an array"); + +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, true); +}, "mapfn is a boolean"); + +var s = Symbol("1"); +assert.throws(TypeError, function() { + TypedArray.from(arrayLike, s); +}, "mapfn is a symbol"); + +assert.sameValue( + getIterator, 0, + "IsCallable(mapfn) check occurs before getting source[@@iterator]" +); + +reportCompare(0, 0); |