64 lines
1.6 KiB
JavaScript
64 lines
1.6 KiB
JavaScript
'use strict';
|
|
var Buffer = require('../../').Buffer;
|
|
|
|
|
|
|
|
var assert = require('assert');
|
|
var buffer = require('../../');
|
|
var Buffer = buffer.Buffer;
|
|
var SlowBuffer = buffer.SlowBuffer;
|
|
|
|
var ones = [1, 1, 1, 1];
|
|
|
|
// should create a Buffer
|
|
var sb = SlowBuffer(4);
|
|
assert(sb instanceof Buffer);
|
|
assert.strictEqual(sb.length, 4);
|
|
sb.fill(1);
|
|
for (var [key, value] of sb.entries()) {
|
|
assert.deepStrictEqual(value, ones[key]);
|
|
}
|
|
|
|
// underlying ArrayBuffer should have the same length
|
|
assert.strictEqual(sb.buffer.byteLength, 4);
|
|
|
|
// should work without new
|
|
sb = SlowBuffer(4);
|
|
assert(sb instanceof Buffer);
|
|
assert.strictEqual(sb.length, 4);
|
|
sb.fill(1);
|
|
for (var [key, value] of sb.entries()) {
|
|
assert.deepStrictEqual(value, ones[key]);
|
|
}
|
|
|
|
// should work with edge cases
|
|
assert.strictEqual(SlowBuffer(0).length, 0);
|
|
try {
|
|
assert.strictEqual(
|
|
SlowBuffer(buffer.kMaxLength).length, buffer.kMaxLength);
|
|
} catch (e) {
|
|
assert.equal(e.message, 'Array buffer allocation failed');
|
|
}
|
|
|
|
// should work with number-coercible values
|
|
assert.strictEqual(SlowBuffer('6').length, 6);
|
|
assert.strictEqual(SlowBuffer(true).length, 1);
|
|
|
|
// should create zero-length buffer if parameter is not a number
|
|
assert.strictEqual(SlowBuffer().length, 0);
|
|
assert.strictEqual(SlowBuffer(NaN).length, 0);
|
|
assert.strictEqual(SlowBuffer({}).length, 0);
|
|
assert.strictEqual(SlowBuffer('string').length, 0);
|
|
|
|
// should throw with invalid length
|
|
assert.throws(function() {
|
|
SlowBuffer(Infinity);
|
|
}, 'invalid Buffer length');
|
|
assert.throws(function() {
|
|
SlowBuffer(-1);
|
|
}, 'invalid Buffer length');
|
|
assert.throws(function() {
|
|
SlowBuffer(buffer.kMaxLength + 1);
|
|
}, 'invalid Buffer length');
|
|
|