diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/slice/create-proxied-array-invalid-len.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/slice/create-proxied-array-invalid-len.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/slice/create-proxied-array-invalid-len.js b/js/src/tests/test262/built-ins/Array/prototype/slice/create-proxied-array-invalid-len.js new file mode 100644 index 0000000000..8560161f69 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/slice/create-proxied-array-invalid-len.js @@ -0,0 +1,54 @@ +// 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-array.prototype.slice +description: > + Ensure a RangeError is thrown when a proxied array returns an invalid array length. +info: | + [...] + 8. Let A be ? ArraySpeciesCreate(O, count). + [...] + + 9.4.2.3 ArraySpeciesCreate + + [...] + 3. Let isArray be ? IsArray(originalArray). + [...] + 5. Let C be ? Get(originalArray, "constructor"). + [...] + 10. Return ? Construct(C, « length »). + + 9.4.2.2 ArrayCreate + + [...] + 3. If length>2^32-1, throw a RangeError exception. +features: [Proxy] +---*/ + +var array = []; +var maxLength = Math.pow(2, 32); +var callCount = 0; +var proxy = new Proxy(array, { + get: function(_, name) { + if (name === 'length') { + return maxLength; + } + return array[name]; + }, + set: function() { + callCount += 1; + return true; + } +}); + +assert.throws(RangeError, function() { + Array.prototype.slice.call(proxy); +}); + +assert.sameValue( + callCount, + 0, + 'RangeError thrown during array creation, not property modification' +); + +reportCompare(0, 0); |