64 lines
2 KiB
JavaScript
64 lines
2 KiB
JavaScript
import $ from 'jquery';
|
|
import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
|
|
import syntaxHighlight from '~/syntax_highlight';
|
|
|
|
describe('Syntax Highlighter', () => {
|
|
const stubUserColorScheme = (value) => {
|
|
window.gon.user_color_scheme = value;
|
|
};
|
|
|
|
// We have to bind `document.querySelectorAll` to `document` to not mess up the fn's context
|
|
describe.each`
|
|
desc | fn
|
|
${'jquery'} | ${$}
|
|
${'vanilla all'} | ${document.querySelectorAll.bind(document)}
|
|
${'vanilla single'} | ${document.querySelector.bind(document)}
|
|
`('highlight using $desc syntax', ({ fn }) => {
|
|
describe('on a js-syntax-highlight element', () => {
|
|
beforeEach(() => {
|
|
setHTMLFixture('<div class="js-syntax-highlight"></div>');
|
|
});
|
|
|
|
afterEach(() => {
|
|
resetHTMLFixture();
|
|
});
|
|
|
|
it('applies syntax highlighting', () => {
|
|
stubUserColorScheme('monokai');
|
|
syntaxHighlight(fn('.js-syntax-highlight'));
|
|
|
|
expect(fn('.js-syntax-highlight')).toHaveClass('monokai');
|
|
});
|
|
});
|
|
|
|
describe('on a parent element', () => {
|
|
beforeEach(() => {
|
|
setHTMLFixture(
|
|
'<div class="parent">\n <div class="js-syntax-highlight"></div>\n <div class="foo"></div>\n <div class="js-syntax-highlight"></div>\n</div>',
|
|
);
|
|
});
|
|
|
|
afterEach(() => {
|
|
resetHTMLFixture();
|
|
});
|
|
|
|
it('applies highlighting to all applicable children', () => {
|
|
stubUserColorScheme('monokai');
|
|
syntaxHighlight(fn('.parent'));
|
|
|
|
expect(fn('.parent')).not.toHaveClass('monokai');
|
|
expect(fn('.foo')).not.toHaveClass('monokai');
|
|
|
|
expect(document.querySelectorAll('.monokai').length).toBe(2);
|
|
});
|
|
|
|
it('prevents an infinite loop when no matches exist', () => {
|
|
setHTMLFixture('<div></div>');
|
|
const highlight = () => syntaxHighlight(fn('div'));
|
|
|
|
expect(highlight).not.toThrow();
|
|
});
|
|
});
|
|
});
|
|
});
|