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
|
import { shallowMount } from '@vue/test-utils';
import { GlIcon, GlLink } from '@gitlab/ui';
import LineNumbers from '~/vue_shared/components/line_numbers.vue';
describe('Line Numbers component', () => {
let wrapper;
const lines = 10;
const createComponent = () => {
wrapper = shallowMount(LineNumbers, { propsData: { lines } });
};
const findGlIcon = () => wrapper.findComponent(GlIcon);
const findLineNumbers = () => wrapper.findAllComponents(GlLink);
const findFirstLineNumber = () => findLineNumbers().at(0);
const findSecondLineNumber = () => findLineNumbers().at(1);
beforeEach(() => createComponent());
afterEach(() => wrapper.destroy());
describe('rendering', () => {
it('renders Line Numbers', () => {
expect(findLineNumbers().length).toBe(lines);
expect(findFirstLineNumber().attributes()).toMatchObject({
id: 'L1',
href: '#L1',
});
});
it('renders a link icon', () => {
expect(findGlIcon().props()).toMatchObject({
size: 12,
name: 'link',
});
});
});
describe('clicking a line number', () => {
let firstLineNumber;
let firstLineNumberElement;
beforeEach(() => {
firstLineNumber = findFirstLineNumber();
firstLineNumberElement = firstLineNumber.element;
jest.spyOn(firstLineNumberElement, 'scrollIntoView');
jest.spyOn(firstLineNumberElement.classList, 'add');
jest.spyOn(firstLineNumberElement.classList, 'remove');
firstLineNumber.vm.$emit('click');
});
it('adds the highlight (hll) class', () => {
expect(firstLineNumberElement.classList.add).toHaveBeenCalledWith('hll');
});
it('removes the highlight (hll) class from a previously highlighted line', () => {
findSecondLineNumber().vm.$emit('click');
expect(firstLineNumberElement.classList.remove).toHaveBeenCalledWith('hll');
});
it('scrolls the line into view', () => {
expect(firstLineNumberElement.scrollIntoView).toHaveBeenCalledWith({
behavior: 'smooth',
block: 'center',
});
});
});
});
|
