如何从组件中检查属性- Jasmine & Angular

describe('MyComponent', () => {
  let component: MyComponent;

  beforeEach(() => {
    component = new MyComponent();
  });

  it('should have a property called "name"', () => {
    expect(component.name).toBeDefined();
  });

  it('should have a default value for "name"', () => {
    expect(component.name).toEqual('John Doe');
  });
});

it('should set the value of "name" input property', () => {
  component.name = 'Alice';
  expect(component.name).toEqual('Alice');
});

it('should emit an event when "name" changes', () => {
  spyOn(component.nameChange, 'emit');
  component.name = 'Bob';
  expect(component.nameChange.emit).toHaveBeenCalledWith('Bob');
});

it('should have "name" property of type string', () => {
  expect(typeof component.name).toBe('string');
});