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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
import { test, assertEqual } from "./test_util.ts";
function deferred() {
let resolve;
let reject;
const promise = new Promise((res, rej) => {
resolve = res;
reject = rej;
});
return {
promise,
resolve,
reject
};
}
function waitForMs(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
test(async function timeoutSuccess() {
const { promise, resolve } = deferred();
let count = 0;
setTimeout(() => {
count++;
resolve();
}, 500);
await promise;
// count should increment
assertEqual(count, 1);
});
test(async function timeoutCancelSuccess() {
let count = 0;
const id = setTimeout(() => {
count++;
}, 500);
// Cancelled, count should not increment
clearTimeout(id);
// Wait a bit longer than 500ms
await waitForMs(600);
assertEqual(count, 0);
});
test(async function timeoutCancelInvalidSilentFail() {
// Expect no panic
const { promise, resolve } = deferred();
let count = 0;
const id = setTimeout(() => {
count++;
// Should have no effect
clearTimeout(id);
resolve();
}, 500);
await promise;
assertEqual(count, 1);
// Should silently fail (no panic)
clearTimeout(2147483647);
});
test(async function intervalSuccess() {
const { promise, resolve } = deferred();
let count = 0;
const id = setInterval(() => {
count++;
if (count === 2) {
// TODO: clearInterval(id) here alone seems not working
// causing unit_tests.ts to block forever
// Requires further investigation...
clearInterval(id);
resolve();
}
}, 200);
await promise;
// Clear interval
clearInterval(id);
// count should increment twice
assertEqual(count, 2);
});
test(async function intervalCancelSuccess() {
let count = 0;
const id = setInterval(() => {
count++;
}, 500);
// Cancelled, count should not increment
clearInterval(id);
// Wait a bit longer than 500ms
await waitForMs(600);
assertEqual(count, 0);
});
test(async function intervalCancelInvalidSilentFail() {
// Should silently fail (no panic)
clearInterval(2147483647);
});
|
