Jest（伊斯坦布尔）的报道

Question

我正在开玩笑地为以下功能编写单元测试用例，并使用istanbul进行覆盖。这是我要为其编写单元测试用例的函数：

    updatePaginationList (forwardOrBackward) {
    let currentIndex = this.getCurrentIndexOfSelectedPage();
    currentIndex = currentIndex + forwardOrBackward;
    this.selIectedPageInPagination = this.PaginationElementList[currentIndex] ;
    **this.updateCurrentVisiblePagination(forwardOrBackward,currentIndex);**

    this.updatePaginationNextVisibility();
    this.updatePaginationBackVisibility();
  }

测试用例：

it('updateCurrentVisiblePaginationList should be called while updatePaginationList called', () => {
  let spy = jest.spyOn(searchComponent, 'updateCurrentVisiblePagination');
  searchComponent.updatePaginationList(1);
  expect(spy).toHaveBeenCalled();
});

，但以下行未包括在本报告中：

  

this.updateCurrentVisiblePagination（forwardOrBackward，currentIndex）;