gitlab-org--gitlab-foss/spec/frontend/toggles/index_spec.js

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import { createWrapper } from '@vue/test-utils';
import { GlToggle } from '@gitlab/ui';
import { initToggle } from '~/toggles';
// Selectors
const TOGGLE_WRAPPER_CLASS = '.gl-toggle-wrapper';
const TOGGLE_LABEL_CLASS = '.gl-toggle-label';
const CHECKED_CLASS = '.is-checked';
const DISABLED_CLASS = '.is-disabled';
const LOADING_CLASS = '.toggle-loading';
const HELP_TEXT_SELECTOR = '[data-testid="toggle-help"]';
// Toggle settings
const toggleClassName = 'js-custom-toggle-class';
const toggleLabel = 'Toggle label';
describe('toggles/index.js', () => {
let instance;
let toggleWrapper;
const createRootEl = (dataAttrs) => {
const dataset = {
label: toggleLabel,
...dataAttrs,
};
const el = document.createElement('span');
el.classList.add(toggleClassName);
Object.entries(dataset).forEach(([key, value]) => {
el.dataset[key] = value;
});
document.body.appendChild(el);
return el;
};
const initToggleWithOptions = (options = {}) => {
const el = createRootEl(options);
instance = initToggle(el);
toggleWrapper = document.querySelector(TOGGLE_WRAPPER_CLASS);
};
afterEach(() => {
document.body.innerHTML = '';
instance = null;
toggleWrapper = null;
});
describe('initToggle', () => {
describe('default state', () => {
beforeEach(() => {
initToggleWithOptions();
});
it('attaches a GlToggle to the element', async () => {
expect(toggleWrapper).not.toBe(null);
expect(toggleWrapper.querySelector(TOGGLE_LABEL_CLASS).textContent).toBe(toggleLabel);
});
it('passes CSS classes down to GlToggle', () => {
expect(toggleWrapper.className).toContain(toggleClassName);
});
it('is not checked', () => {
expect(toggleWrapper.querySelector(CHECKED_CLASS)).toBe(null);
});
it('is enabled', () => {
expect(toggleWrapper.querySelector(DISABLED_CLASS)).toBe(null);
});
it('is not loading', () => {
expect(toggleWrapper.querySelector(LOADING_CLASS)).toBe(null);
});
it('emits "change" event when value changes', () => {
const wrapper = createWrapper(instance);
const event = 'change';
const listener = jest.fn();
instance.$on(event, listener);
expect(listener).toHaveBeenCalledTimes(0);
wrapper.find(GlToggle).vm.$emit(event, true);
expect(listener).toHaveBeenCalledTimes(1);
expect(listener).toHaveBeenLastCalledWith(true);
wrapper.find(GlToggle).vm.$emit(event, false);
expect(listener).toHaveBeenCalledTimes(2);
expect(listener).toHaveBeenLastCalledWith(false);
});
});
describe('with custom options', () => {
const name = 'toggle-name';
const help = 'Help text';
const foo = 'bar';
const id = 'an-id';
beforeEach(() => {
initToggleWithOptions({
name,
id,
isChecked: true,
disabled: true,
isLoading: true,
help,
labelPosition: 'hidden',
foo,
});
toggleWrapper = document.querySelector(TOGGLE_WRAPPER_CLASS);
});
it('sets the custom name', () => {
const input = toggleWrapper.querySelector('input[type="hidden"]');
expect(input.name).toBe(name);
});
it('is checked', () => {
expect(toggleWrapper.querySelector(CHECKED_CLASS)).not.toBe(null);
});
it('is disabled', () => {
expect(toggleWrapper.querySelector(DISABLED_CLASS)).not.toBe(null);
});
it('is loading', () => {
expect(toggleWrapper.querySelector(LOADING_CLASS)).not.toBe(null);
});
it('sets the custom help text', () => {
expect(toggleWrapper.querySelector(HELP_TEXT_SELECTOR).textContent).toBe(help);
});
it('hides the label', () => {
expect(
toggleWrapper.querySelector(TOGGLE_LABEL_CLASS).classList.contains('gl-sr-only'),
).toBe(true);
});
it('passes custom dataset to the wrapper', () => {
expect(toggleWrapper.dataset.foo).toBe('bar');
});
it('passes an id to the wrapper', () => {
expect(toggleWrapper.id).toBe(id);
});
});
});
});