debian-mirror-gitlab/spec/frontend/vue_shared/components/icon_spec.js

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import Vue from 'vue';
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import { mount } from '@vue/test-utils';
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import mountComponent from 'helpers/vue_mount_component_helper';
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import Icon from '~/vue_shared/components/icon.vue';
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import iconsPath from '@gitlab/svgs/dist/icons.svg';
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jest.mock('@gitlab/svgs/dist/icons.svg', () => 'testing');
describe('Sprite Icon Component', () => {
describe('Initialization', () => {
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let icon;
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beforeEach(() => {
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const IconComponent = Vue.extend(Icon);
icon = mountComponent(IconComponent, {
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name: 'commit',
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size: 32,
});
});
afterEach(() => {
icon.$destroy();
});
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it('should return a defined Vue component', () => {
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expect(icon).toBeDefined();
});
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it('should have <svg> as a child element', () => {
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expect(icon.$el.tagName).toBe('svg');
});
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it('should have <use> as a child element with the correct href', () => {
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expect(icon.$el.firstChild.tagName).toBe('use');
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expect(icon.$el.firstChild.getAttribute('xlink:href')).toBe(`${iconsPath}#commit`);
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});
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it('should properly compute iconSizeClass', () => {
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expect(icon.iconSizeClass).toBe('s32');
});
it('forbids invalid size prop', () => {
expect(icon.$options.props.size.validator(NaN)).toBeFalsy();
expect(icon.$options.props.size.validator(0)).toBeFalsy();
expect(icon.$options.props.size.validator(9001)).toBeFalsy();
});
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it('should properly render img css', () => {
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const { classList } = icon.$el;
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const containsSizeClass = classList.contains('s32');
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expect(containsSizeClass).toBe(true);
});
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it('`name` validator should return false for non existing icons', () => {
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jest.spyOn(console, 'warn').mockImplementation();
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expect(Icon.props.name.validator('non_existing_icon_sprite')).toBe(false);
});
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it('`name` validator should return true for existing icons', () => {
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expect(Icon.props.name.validator('commit')).toBe(true);
});
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});
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it('should call registered listeners when they are triggered', () => {
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const clickHandler = jest.fn();
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const wrapper = mount(Icon, {
propsData: { name: 'commit' },
listeners: { click: clickHandler },
});
wrapper.find('svg').trigger('click');
expect(clickHandler).toHaveBeenCalled();
});
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});