如何在 Jest/Jasmine 单元测试中测试方法属性

Question

I need to test the property of the method in jest. My test is passing but test coverage is not increasing.

How test the property of methods?

component.ts

 onClickExpanding() {
        this.ownerName = this.getControl();
        this.quest.parent.children.forEach(c=> c.Grp = false);
        this.quest.Grp = true;
      }

TestCase

it('onClickExpandingtest all property', () => {
  copoment.quest.Grp= true;
  expect(component.onClickExpanding).toBeTruthy();
});

Answer 1

Right now you are just checking if the method exists - that is why test coverage is not increasing. If you are setting private component properties you can use the following syntax: expect(copoment['ownerName ']).toBe(whatever). If the property is public you can just access it via component.property..