我正在为一个函数编写测试。下面是文件-

// A.ts
export abstract class A{
    protected abstract method();
}

//B.ts
export class B extends A{
    constructor(){  super();  }

protected async method(){
    init(request);
    //some more method calls
}

private async init(request){
    try {
        const reqUrl = new URL('http://localhost' + request.url);
        let param = reqUrl.searchParams.get("value") || "";
        if (!param) {
            throw "Value missing in request";
        }
        someFunc();
    }
    catch (e) {
        console.log(e);
        throw e;
    }
}
}

//B.spec.ts
describe("tests", ()=> {
    afterEach(() =>{
        jest.resetAllMocks();
        jest.clearAllMocks();
    })
    it("test on request", async()=>{
        let bVal = new B();
        let socket = new Socket();
        let request = new IncomingMessage(socket);
        await B["init"](request);
        socket.destroy();
        const spied = jest.spyOn(util,'someFunc').mockImplementation(()=>{});
        expect(spied).toBeCalledTimes(0);
    })
})

测试只是发送没有查询参数'value'的请求，因此函数init（）将抛出错误。当我将函数调用B“init”封装在try catch块中的测试内时，测试通过，但如果没有try catch块，则测试失败。我不想在测试中使用try catch块，因此如何处理抛出的异常？