[READ-ONLY] Mirror of https://github.com/bombshell-dev/clack. Effortlessly build beautiful command-line apps
bomb.sh/docs/clack/basics/getting-started/
cli
command-line
command-line-app
node
prompt
prompts
test: add tests for `SelectPrompt` (#260)
authored by
James Garbutt
and committed by
GitHub
(Mar 30, 2025, 2:33 PM -0500)
f87e7518
eed2780b
+105
+105
packages/core/test/prompts/select.test.ts
+105
packages/core/test/prompts/select.test.ts
···
1
+
import color from 'picocolors';
2
+
import { cursor } from 'sisteransi';
3
+
import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest';
4
+
import { default as SelectPrompt } from '../../src/prompts/select.js';
5
+
import { MockReadable } from '../mock-readable.js';
6
+
import { MockWritable } from '../mock-writable.js';
7
+
8
+
describe('SelectPrompt', () => {
9
+
let input: MockReadable;
10
+
let output: MockWritable;
11
+
12
+
beforeEach(() => {
13
+
input = new MockReadable();
14
+
output = new MockWritable();
15
+
});
16
+
17
+
afterEach(() => {
18
+
vi.restoreAllMocks();
19
+
});
20
+
21
+
test('renders render() result', () => {
22
+
const instance = new SelectPrompt({
23
+
input,
24
+
output,
25
+
render: () => 'foo',
26
+
options: [{ value: 'foo' }, { value: 'bar' }],
27
+
});
28
+
instance.prompt();
29
+
expect(output.buffer).to.deep.equal([cursor.hide, 'foo']);
30
+
});
31
+
32
+
describe('cursor', () => {
33
+
test('cursor is index of selected item', () => {
34
+
const instance = new SelectPrompt({
35
+
input,
36
+
output,
37
+
render: () => 'foo',
38
+
options: [{ value: 'foo' }, { value: 'bar' }],
39
+
});
40
+
41
+
instance.prompt();
42
+
43
+
expect(instance.cursor).to.equal(0);
44
+
input.emit('keypress', 'down', { name: 'down' });
45
+
expect(instance.cursor).to.equal(1);
46
+
});
47
+
48
+
test('cursor loops around', () => {
49
+
const instance = new SelectPrompt({
50
+
input,
51
+
output,
52
+
render: () => 'foo',
53
+
options: [{ value: 'foo' }, { value: 'bar' }, { value: 'baz' }],
54
+
});
55
+
56
+
instance.prompt();
57
+
58
+
expect(instance.cursor).to.equal(0);
59
+
input.emit('keypress', 'up', { name: 'up' });
60
+
expect(instance.cursor).to.equal(2);
61
+
input.emit('keypress', 'down', { name: 'down' });
62
+
expect(instance.cursor).to.equal(0);
63
+
});
64
+
65
+
test('left behaves as up', () => {
66
+
const instance = new SelectPrompt({
67
+
input,
68
+
output,
69
+
render: () => 'foo',
70
+
options: [{ value: 'foo' }, { value: 'bar' }, { value: 'baz' }],
71
+
});
72
+
73
+
instance.prompt();
74
+
75
+
input.emit('keypress', 'left', { name: 'left' });
76
+
expect(instance.cursor).to.equal(2);
77
+
});
78
+
79
+
test('right behaves as down', () => {
80
+
const instance = new SelectPrompt({
81
+
input,
82
+
output,
83
+
render: () => 'foo',
84
+
options: [{ value: 'foo' }, { value: 'bar' }],
85
+
});
86
+
87
+
instance.prompt();
88
+
89
+
input.emit('keypress', 'left', { name: 'left' });
90
+
expect(instance.cursor).to.equal(1);
91
+
});
92
+
93
+
test('initial value is selected', () => {
94
+
const instance = new SelectPrompt({
95
+
input,
96
+
output,
97
+
render: () => 'foo',
98
+
options: [{ value: 'foo' }, { value: 'bar' }],
99
+
initialValue: 'bar',
100
+
});
101
+
instance.prompt();
102
+
expect(instance.cursor).to.equal(1);
103
+
});
104
+
});
105
+
});