diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/find/array-altered-during-loop.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/find/array-altered-during-loop.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/find/array-altered-during-loop.js b/js/src/tests/test262/built-ins/Array/prototype/find/array-altered-during-loop.js new file mode 100644 index 0000000000..4cedb36f08 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/find/array-altered-during-loop.js @@ -0,0 +1,49 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.prototype.find +description: > + The range of elements processed is set before the first call to `predicate`. +info: | + 22.1.3.8 Array.prototype.find ( predicate[ , thisArg ] ) + + ... + 6. If thisArg was supplied, let T be thisArg; else let T be undefined. + 7. Let k be 0. + 8. Repeat, while k < len + ... + d. Let testResult be ToBoolean(Call(predicate, T, «kValue, k, O»)). + ... +---*/ + +var arr = ['Shoes', 'Car', 'Bike']; +var results = []; + +arr.find(function(kValue) { + if (results.length === 0) { + arr.splice(1, 1); + } + results.push(kValue); +}); + +assert.sameValue(results.length, 3, 'predicate called three times'); +assert.sameValue(results[0], 'Shoes'); +assert.sameValue(results[1], 'Bike'); +assert.sameValue(results[2], undefined); + +results = []; +arr = ['Skateboard', 'Barefoot']; +arr.find(function(kValue) { + if (results.length === 0) { + arr.push('Motorcycle'); + arr[1] = 'Magic Carpet'; + } + + results.push(kValue); +}); + +assert.sameValue(results.length, 2, 'predicate called twice'); +assert.sameValue(results[0], 'Skateboard'); +assert.sameValue(results[1], 'Magic Carpet'); + +reportCompare(0, 0); |