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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { delay } from "./delay.ts";import { assert, assertRejects } from "../testing/asserts.ts";
Deno.test("[async] delay", async function () {  const start = new Date();  const delayedPromise = delay(100);  const result = await delayedPromise;  const diff = new Date().getTime() - start.getTime();  assert(result === undefined);  assert(diff >= 100);});
Deno.test("[async] delay with abort", async function () {  const start = new Date();  const abort = new AbortController();  const { signal } = abort;  const delayedPromise = delay(100, { signal });  setTimeout(() => abort.abort(), 0);  await assertRejects(    () => delayedPromise,    DOMException,    "Delay was aborted",  );
  const diff = new Date().getTime() - start.getTime();  assert(diff < 100);});
Deno.test("[async] delay with non-aborted signal", async function () {  const start = new Date();  const abort = new AbortController();  const { signal } = abort;  const delayedPromise = delay(100, { signal });  // abort.abort()  const result = await delayedPromise;  const diff = new Date().getTime() - start.getTime();  assert(result === undefined);  assert(diff >= 100);});
Deno.test("[async] delay with signal aborted after delay", async function () {  const start = new Date();  const abort = new AbortController();  const { signal } = abort;  const delayedPromise = delay(100, { signal });  const result = await delayedPromise;  abort.abort();  const diff = new Date().getTime() - start.getTime();  assert(result === undefined);  assert(diff >= 100);});
Deno.test("[async] delay with already aborted signal", async function () {  const start = new Date();  const abort = new AbortController();  abort.abort();  const { signal } = abort;  const delayedPromise = delay(100, { signal });  await assertRejects(    () => delayedPromise,    DOMException,    "Delay was aborted",  );
  const diff = new Date().getTime() - start.getTime();  assert(diff < 100);});