import Vue from 'vue';
import fileIcon from '~/vue_shared/components/file_icon.vue';
import mountComponent from 'spec/helpers/vue_mount_component_helper';

describe('File Icon component', () => {
  let vm;
  let FileIcon;

  beforeEach(() => {
    FileIcon = Vue.extend(fileIcon);
  });

  afterEach(() => {
    vm.$destroy();
  });

  it('should render a span element with an svg', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'test.js',
    });

    expect(vm.$el.tagName).toEqual('SPAN');
    expect(vm.$el.querySelector('span > svg')).toBeDefined();
  });

  it('should render a javascript icon based on file ending', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'test.js',
    });

    expect(vm.$el.firstChild.firstChild.getAttribute('xlink:href')).toBe(
      `${gon.sprite_file_icons}#javascript`,
    );
  });

  it('should render a image icon based on file ending', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'test.png',
    });

    expect(vm.$el.firstChild.firstChild.getAttribute('xlink:href')).toBe(
      `${gon.sprite_file_icons}#image`,
    );
  });

  it('should render a webpack icon based on file namer', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'webpack.js',
    });

    expect(vm.$el.firstChild.firstChild.getAttribute('xlink:href')).toBe(
      `${gon.sprite_file_icons}#webpack`,
    );
  });

  it('should render a standard folder icon', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'js',
      folder: true,
    });

    expect(vm.$el.querySelector('span > svg > use').getAttribute('xlink:href')).toBe(
      `${gon.sprite_file_icons}#folder`,
    );
  });

  it('should render a loading icon', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'test.js',
      loading: true,
    });

    const { classList } = vm.$el.querySelector('.loading-container span');

    expect(classList.contains('gl-spinner')).toEqual(true);
  });

  it('should add a special class and a size class', () => {
    vm = mountComponent(FileIcon, {
      fileName: 'test.js',
      cssClasses: 'extraclasses',
      size: 120,
    });

    const { classList } = vm.$el.firstChild;
    const containsSizeClass = classList.contains('s120');
    const containsCustomClass = classList.contains('extraclasses');

    expect(containsSizeClass).toBe(true);
    expect(containsCustomClass).toBe(true);
  });
});
