warning = fmt.Errorf("workload selector specified without labels") // nolint: stylecheck
		}
	}

	return warning, errs
}

// ValidateSidecar checks sidecar config supplied by user
var ValidateSidecar = RegisterValidateFunc("ValidateSidecar",
	func(cfg config.Config) (Warning, error) {
		errs := Validation{}
		rule, ok := cfg.Spec.(*networking.Sidecar)
		if !ok {

					},
					ConnectionPool: &networking.ConnectionPoolSettings{},
				},
			},
		}, false, false},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			warn, err := ValidateSidecar(config.Config{
				Meta: config.Meta{
					Name:      "foo",
					Namespace: "bar",
				},
				Spec: tt.in,
			})
			checkValidation(t, warn, err, tt.valid, tt.warn)
		})
	}
}