How to use the jest/ide/helpers.file function in jest

it('emits toggleTreeOpen on click', () => {
    const fileName = 't3';
    createComponent({
      file: {
        ...file(fileName),
        type: 'tree',
      },
      level: 0,
    });
    jest.spyOn(wrapper.vm, '$emit');

    wrapper.element.click();

    expect(wrapper.vm.$emit).toHaveBeenCalledWith('toggleTreeOpen', fileName);
  });

it('indents row based on level', () => {
    createComponent({
      file: file('t4'),
      level: 2,
    });

    expect(wrapper.find('.file-row-name').element.style.marginLeft).toBe('32px');
  });

it('renders name', () => {
    const fileName = 't4';
    createComponent({
      file: file(fileName),
      level: 0,
    });

    const name = wrapper.find('.file-row-name');

    expect(name.text().trim()).toEqual(fileName);
  });

it('matches the current route against encoded file URL', () => {
    const fileName = 'with space';
    const rowFile = { ...file(fileName), url: `/${fileName}` };
    const routerPath = `/project/${escapeFileUrl(fileName)}`;
    createComponent(
      {
        file: rowFile,
        level: 0,
      },
      {
        currentRoute: {
          path: routerPath,
        },
      },
    );

    expect(wrapper.vm.hasUrlAtCurrentRoute()).toBe(true);
  });

it('does not render a title attribute if no tree present', () => {
    createComponent({
      file: file('f1.txt'),
      level: 0,
    });

    expect(wrapper.element.title.trim()).toEqual('');
  });

beforeEach((done) => {
      createComponent({
        files: [
          {
            ...file('index.js'),
            path: 'index.js',
            type: 'blob',
            url: '/index.jsurl',
          },
          {
            ...file('component.js'),
            path: 'component.js',
            type: 'blob',
          },
        ],
      });

      setImmediate(done);
    });

beforeEach((done) => {
      createComponent({
        files: [
          {
            ...file('index.js'),
            path: 'index.js',
            type: 'blob',
            url: '/index.jsurl',
          },
          {
            ...file('component.js'),
            path: 'component.js',
            type: 'blob',
          },
        ],
      });

      setImmediate(done);
    });