github.com/samuelkuklis/utils@v1.0.0/net/port_test.go (about) 1 /* 2 Copyright 2020 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package net 18 19 import ( 20 "testing" 21 ) 22 23 func ExampleLocalPort() { 24 lp, err := NewLocalPort( 25 "TCP port", 26 "", 27 IPv4, 28 443, 29 TCP, 30 ) 31 if err != nil { 32 panic(err) 33 } 34 port, err := ListenPortOpener.OpenLocalPort(lp) 35 if err != nil { 36 panic(err) 37 } 38 port.Close() 39 } 40 41 func TestLocalPortString(t *testing.T) { 42 testCases := []struct { 43 description string 44 ip string 45 family IPFamily 46 port int 47 protocol Protocol 48 expectedStr string 49 expectedErr bool 50 }{ 51 {"IPv4 UDP", "1.2.3.4", "", 9999, UDP, `"IPv4 UDP" (1.2.3.4:9999/udp)`, false}, 52 {"IPv4 TCP", "5.6.7.8", "", 1053, TCP, `"IPv4 TCP" (5.6.7.8:1053/tcp)`, false}, 53 {"IPv6 TCP", "2001:db8::1", "", 80, TCP, `"IPv6 TCP" ([2001:db8::1]:80/tcp)`, false}, 54 {"IPv4 TCP, all addresses", "", IPv4, 1053, TCP, `"IPv4 TCP, all addresses" (:1053/tcp4)`, false}, 55 {"IPv6 TCP, all addresses", "", IPv6, 80, TCP, `"IPv6 TCP, all addresses" (:80/tcp6)`, false}, 56 {"No ip family TCP, all addresses", "", "", 80, TCP, `"No ip family TCP, all addresses" (:80/tcp)`, false}, 57 {"IP family mismatch", "2001:db8::2", IPv4, 80, TCP, "", true}, 58 {"IP family mismatch", "1.2.3.4", IPv6, 80, TCP, "", true}, 59 {"Unsupported protocol", "2001:db8::2", "", 80, "http", "", true}, 60 {"Invalid IP", "300", "", 80, TCP, "", true}, 61 {"Invalid ip family", "", "5", 80, TCP, "", true}, 62 } 63 64 for _, tc := range testCases { 65 lp, err := NewLocalPort( 66 tc.description, 67 tc.ip, 68 tc.family, 69 tc.port, 70 tc.protocol, 71 ) 72 if tc.expectedErr { 73 if err == nil { 74 t.Errorf("Expected err when creating LocalPort %v", tc) 75 } 76 continue 77 } 78 if err != nil { 79 t.Errorf("Unexpected err when creating LocalPort %s", err) 80 continue 81 } 82 str := lp.String() 83 if str != tc.expectedStr { 84 t.Errorf("Unexpected output for %s, expected: %s, got: %s", tc.description, tc.expectedStr, str) 85 } 86 } 87 }