mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
1.1 KiB
33 lines
1.1 KiB
'use strict';
|
|
|
|
require('../common');
|
|
const assert = require('assert');
|
|
const SlowBuffer = require('buffer').SlowBuffer;
|
|
|
|
// Test failed or zero-sized Buffer allocations not affecting typed arrays.
|
|
// This test exists because of a regression that occurred. Because Buffer
|
|
// instances are allocated with the same underlying allocator as TypedArrays,
|
|
// but Buffer's can optional be non-zero filled, there was a regression that
|
|
// occurred when a Buffer allocated failed, the internal flag specifying
|
|
// whether or not to zero-fill was not being reset, causing TypedArrays to
|
|
// allocate incorrectly.
|
|
const zeroArray = new Uint32Array(10).fill(0);
|
|
const sizes = [1e10, 0, 0.1, -1, 'a', undefined, null, NaN];
|
|
const allocators = [
|
|
Buffer,
|
|
SlowBuffer,
|
|
Buffer.alloc,
|
|
Buffer.allocUnsafe,
|
|
Buffer.allocUnsafeSlow
|
|
];
|
|
for (const allocator of allocators) {
|
|
for (const size of sizes) {
|
|
try {
|
|
// These allocations are known to fail. If they do,
|
|
// Uint32Array should still produce a zeroed out result.
|
|
allocator(size);
|
|
} catch (e) {
|
|
assert.deepStrictEqual(new Uint32Array(10), zeroArray);
|
|
}
|
|
}
|
|
}
|
|
|