40 lines
851 B
JavaScript
40 lines
851 B
JavaScript
'use strict';
|
|
|
|
require('../common');
|
|
const assert = require('assert');
|
|
|
|
|
|
function T(n) {
|
|
const ui8 = new Uint8Array(n);
|
|
Object.setPrototypeOf(ui8, T.prototype);
|
|
return ui8;
|
|
}
|
|
Object.setPrototypeOf(T.prototype, Buffer.prototype);
|
|
Object.setPrototypeOf(T, Buffer);
|
|
|
|
T.prototype.sum = function sum() {
|
|
let cntr = 0;
|
|
for (let i = 0; i < this.length; i++)
|
|
cntr += this[i];
|
|
return cntr;
|
|
};
|
|
|
|
|
|
const vals = [new T(4), T(4)];
|
|
|
|
vals.forEach(function(t) {
|
|
assert.strictEqual(t.constructor, T);
|
|
assert.strictEqual(Object.getPrototypeOf(t), T.prototype);
|
|
assert.strictEqual(Object.getPrototypeOf(Object.getPrototypeOf(t)),
|
|
Buffer.prototype);
|
|
|
|
t.fill(5);
|
|
let cntr = 0;
|
|
for (let i = 0; i < t.length; i++)
|
|
cntr += t[i];
|
|
assert.strictEqual(cntr, t.length * 5);
|
|
|
|
// Check this does not throw
|
|
t.toString();
|
|
});
|