使用笑话进行单元测试

Question

我正在使用Jest作为测试工具。我无法测试以下情况：

<div class={`${this.isPaginationRequired ? 'search-pagination pull-right' : 'pagination-hide'}`} id = "pagination">

我正在为以下情况编写测试用例：

   it('pagination should be visible if isPaginationRequired is set to true', () => {
     const paginationDiv = element.querySelector('#pagination');
     expect(paginationDiv.classList).toContain('search-pagination');
     expect(paginationDiv.classList).toContain('pull-right');
    });
    it('pagination should not be visible if isPaginationRequired is set to false', async () => {
      const paginationDiv = element.querySelector('#pagination');
      // testWindow.flush();
      searchComponent.isPaginationRequired = false;
      expect(paginationDiv.className).toBe('pagination-hide');
    })

但是问题出在将isPaginationRequired设置为false paginationDiv.className是 search-pagination pull-right

之后的第二个测试用例中