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.
30 lines
1013 B
30 lines
1013 B
8 years ago
|
'use strict';
|
||
|
|
require('../common');
|
||
|
|
const assert = require('assert');
|
||
|
|
const { Readable, Writable, Duplex, Transform } = require('stream');
|
||
|
|
|
||
|
|
const readable = new Readable({ read() {} });
|
||
|
|
const writable = new Writable({ write() {} });
|
||
|
|
const duplex = new Duplex({ read() {}, write() {} });
|
||
|
|
const transform = new Transform({ transform() {} });
|
||
|
|
|
||
|
|
assert.ok(readable instanceof Readable);
|
||
|
|
assert.ok(!(writable instanceof Readable));
|
||
|
|
assert.ok(duplex instanceof Readable);
|
||
|
|
assert.ok(transform instanceof Readable);
|
||
|
|
|
||
|
|
assert.ok(!(readable instanceof Writable));
|
||
|
|
assert.ok(writable instanceof Writable);
|
||
|
|
assert.ok(duplex instanceof Writable);
|
||
|
|
assert.ok(transform instanceof Writable);
|
||
|
|
|
||
|
|
assert.ok(!(readable instanceof Duplex));
|
||
|
|
assert.ok(!(writable instanceof Duplex));
|
||
|
|
assert.ok(duplex instanceof Duplex);
|
||
|
|
assert.ok(transform instanceof Duplex);
|
||
|
|
|
||
|
|
assert.ok(!(readable instanceof Transform));
|
||
|
|
assert.ok(!(writable instanceof Transform));
|
||
|
|
assert.ok(!(duplex instanceof Transform));
|
||
|
|
assert.ok(transform instanceof Transform);
|