Function request

tests/unit/adapters/http.test.js:4292–4311

(options, handleResponse)

        let capturedHeaders;
        const stubTransport = {
          request(options, handleResponse) {
            capturedHeaders = { ...options.headers };
            const req = new EventEmitter();
            req.write = () => true;
            req.setTimeout = () => {};
            req.destroy = () => {};
            req.end = () => {
              const res = new stream.Readable({ read() {} });
              res.statusCode = 200;
              res.statusMessage = 'OK';
              res.headers = { 'x-server': 'real' };
              res.rawHeaders = [];
              res.req = req;
              process.nextTick(() => {
                handleResponse(res);
                res.push(null);
              });
            };
            return req;
          },
        };

        try {