如何使用jasmine测试角度表单的first form控件集中在页面加载上

npm install jasmine --save-dev

describe('First Form', function() {
  var form;

  beforeEach(function() {
    // 在每个测试用例之前，创建一个新的表单实例
    form = new FirstForm();
  });

  it('should have all form controls loaded on page load', function() {
    // 验证表单控件的数量
    expect(form.controls.length).toBe(3);

    // 验证表单控件的类型和属性
    expect(form.controls[0].type).toBe('input');
    expect(form.controls[0].name).toBe('username');
    expect(form.controls[0].required).toBe(true);

    expect(form.controls[1].type).toBe('input');
    expect(form.controls[1].name).toBe('password');
    expect(form.controls[1].required).toBe(true);

    expect(form.controls[2].type).toBe('button');
    expect(form.controls[2].name).toBe('submit');
    expect(form.controls[2].disabled).toBe(false);
  });
});

jasmine