node/test/parallel/test-stream-writable-writable.js at 6160cdb0880380876b2d5fd91b52b5ca8f18b3bc · nxtedition/node · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
'use strict';
const common = require('../common');
const assert = require('assert');

const { Writable } = require('stream');

{
  const w = new Writable({
    write() {}
  });
  assert.strictEqual(w.writable, true);
  w.destroy();
  assert.strictEqual(w.writable, false);
}

{
  const w = new Writable({
    write: common.mustCall((chunk, encoding, callback) => {
      callback(new Error());
    })
  });
  assert.strictEqual(w.writable, true);
  w.write('asd');
  assert.strictEqual(w.writable, false);
  w.on('error', common.mustCall());
  w.destroy();
}

{
  const w = new Writable({
    write: common.mustCall((chunk, encoding, callback) => {
      process.nextTick(() => {
        callback(new Error());
        assert.strictEqual(w.writable, false);
      });
    })
  });
  w.write('asd');
  w.on('error', common.mustCall());
}

{
  const w = new Writable({
    write: common.mustNotCall()
  });
  assert.strictEqual(w.writable, true);
  w.end();
  assert.strictEqual(w.writable, false);
}