gitlab-org--gitlab-foss/spec/frontend/blob/file_template_selector_spec.js

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import $ from 'jquery';
import FileTemplateSelector from '~/blob/file_template_selector';
describe('FileTemplateSelector', () => {
let subject;
let dropdown;
let wrapper;
const createSubject = () => {
subject = new FileTemplateSelector({});
subject.config = {
dropdown,
wrapper,
};
subject.initDropdown = jest.fn();
};
afterEach(() => {
subject = null;
});
describe('show method', () => {
beforeEach(() => {
dropdown = document.createElement('div');
wrapper = document.createElement('div');
wrapper.classList.add('hidden');
createSubject();
});
it('calls init on first call', () => {
jest.spyOn(subject, 'init');
subject.show();
expect(subject.init).toHaveBeenCalledTimes(1);
});
it('does not call init on subsequent calls', () => {
jest.spyOn(subject, 'init');
subject.show();
subject.show();
expect(subject.init).toHaveBeenCalledTimes(1);
});
it('removes hidden class from $wrapper', () => {
expect($(wrapper).hasClass('hidden')).toBe(true);
subject.show();
expect($(wrapper).hasClass('hidden')).toBe(false);
});
it('sets the focus on the dropdown', async () => {
subject.show();
jest.spyOn(subject.$dropdown, 'focus');
jest.runAllTimers();
expect(subject.$dropdown.focus).toHaveBeenCalled();
});
});
});