port_test.go

Documentation: k8s.io/utils/net

     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  }
    88
View as plain text