package pkg import "net/http" func fn() { // Seen in actual code http.ListenAndServe("localhost:8080/", nil) // want `invalid port or service name in host:port pair` http.ListenAndServe("localhost", nil) // want `invalid port or service name in host:port pair` http.ListenAndServe("localhost:8080", nil) http.ListenAndServe(":8080", nil) http.ListenAndServe(":http", nil) http.ListenAndServe("localhost:http", nil) http.ListenAndServe("local_host:8080", nil) }