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Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/fill/coerced-indexes.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/fill/coerced-indexes.js | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/coerced-indexes.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/coerced-indexes.js new file mode 100644 index 0000000000..f2f78c3d39 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/coerced-indexes.js @@ -0,0 +1,106 @@ +// 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%.prototype.fill +description: > + Fills elements from coerced to Integer `start` and `end` values +info: | + 22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] ) + + %TypedArray%.prototype.fill is a distinct function that implements the same + algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this + object's [[ArrayLength]] internal slot is accessed in place of performing a + [[Get]] of "length". The implementation of the algorithm may be optimized with + the knowledge that the this value is an object that has a fixed length and + whose integer indexed properties are not sparse. However, such optimization + must not introduce any observable changes in the specified behaviour of the + algorithm. + + ... + + 22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] ) + + ... + 3. Let relativeStart be ? ToInteger(start). + 4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be + min(relativeStart, len). + 5. If end is undefined, let relativeEnd be len; else let relativeEnd be ? + ToInteger(end). + ... +includes: [compareArray.js, testTypedArray.js] +features: [TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + assert( + compareArray(new TA([0, 0]).fill(1, undefined), [1, 1]), + '`undefined` start coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, undefined), [1, 1]), + 'If end is undefined, let relativeEnd be len' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, null), [1, 1]), + '`null` start coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, null), [0, 0]), + '`null` end coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, true), [0, 1]), + '`true` start coerced to 1' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, true), [1, 0]), + '`true` end coerced to 1' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, false), [1, 1]), + '`false` start coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, false), [0, 0]), + '`false` end coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, NaN), [1, 1]), + '`NaN` start coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, NaN), [0, 0]), + '`NaN` end coerced to 0' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, '1'), [0, 1]), + 'string start coerced' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, '1'), [1, 0]), + 'string end coerced' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 1.5), [0, 1]), + 'start as a float number coerced' + ); + + assert( + compareArray(new TA([0, 0]).fill(1, 0, 1.5), [1, 0]), + 'end as a float number coerced' + ); +}); + +reportCompare(0, 0); |