blob: 7e0cc3c5d0a671956d3939abb74d2f243b302fe4 (
plain)
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
|
import { resolveAfter } from './resolve_after';
describe('Resolve After', () => {
test('it should throw if given 0', () => {
expect(() => {
resolveAfter(0);
}).toThrow();
});
test('it should throw if given a negative number', () => {
expect(() => {
resolveAfter(-1);
}).toThrow();
});
test('it should resolve after the specified number of times', () => {
expect(() => {
const { counter, promise: resolveAfterThree } = resolveAfter(3);
let resolved = false;
resolveAfterThree.then(() => (resolved = true));
counter();
expect(resolved).toBe(false);
counter();
expect(resolved).toBe(false);
counter();
expect(resolved).toBe(true);
}).toThrow();
});
});
|
