TS Lint关于因果茉莉的问题

Question

我有一个测试文件（业力茉莉花）。内部描述函数有290多个行，抛出TS lint错误。有什么方法可以创建两个共享相同的beforeDeach（）的Describe？

describe('test', () => {
   beforeEach(async(() => {
      //some code
   }));    
   beforeEach(() => {
    fixture = TestBed.createComponent(test);
    component = fixture.componentInstance;
    fixture.detectChanges();
   });    
   //Following by test cases
});