Question

我正在开发一个 Angular 应用程序。我想增加我的项目的测试覆盖率。对于这种情况，如何在 angular 中实现单元测试？ [46, 8, 9, 27, 13, 110, 190].indexOf(e.keyCode) !== -1

Answer 1

indexOf(e.keyCode) !== -1 表示您正在检查该数组中是否存在该 keyCode 。您可以这样做：

it('should run the test'. () => {
  component.keyCode = 2 // Give a value which is not present in that array.
  spyOn(component, 'yourMethodWhereThatCodeIsThere').and.callThrough();
  component.yourMethodWhereThatCodeIsThere();
  expect(component.yourMethodWhereThatCodeIsThere).toHaveBeenCalled();
})

This should cover that line

角度单元测试 keyCode？

1 个答案: