if err != nil {
			t.Fatal(err)
		}
		if err := sc.Control(func(fd uintptr) {
			verifyKeepAliveSettings(t, fdType(fd), oldCfg, cfg)
		}); err != nil {
			t.Fatal(err)
		}
	}
}

func TestTCPConnKeepAliveConfigListener(t *testing.T) {
	maybeSkipKeepAliveTest(t)

	t.Cleanup(func() {
		testPreHookSetKeepAlive = func(*netFD) {}
	})
	var (
		errHook error
		oldCfg  KeepAliveConfig
	)