k8s.io/kubernetes@v1.29.3/pkg/proxy/util/endpoints_test.go (about)

     1  /*
     2  Copyright 2017 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 util
    18  
    19  import (
    20  	"testing"
    21  )
    22  
    23  func TestIPPart(t *testing.T) {
    24  	const noError = ""
    25  
    26  	testCases := []struct {
    27  		endpoint      string
    28  		expectedIP    string
    29  		expectedError string
    30  	}{
    31  		{"1.2.3.4", "1.2.3.4", noError},
    32  		{"1.2.3.4:9999", "1.2.3.4", noError},
    33  		{"2001:db8::1:1", "2001:db8::1:1", noError},
    34  		{"[2001:db8::2:2]:9999", "2001:db8::2:2", noError},
    35  		{"1.2.3.4::9999", "", "too many colons"},
    36  		{"1.2.3.4:[0]", "", "unexpected '[' in address"},
    37  		{"1.2.3:8080", "", "invalid ip part"},
    38  	}
    39  
    40  	for _, tc := range testCases {
    41  		ip := IPPart(tc.endpoint)
    42  		if tc.expectedError == noError {
    43  			if ip != tc.expectedIP {
    44  				t.Errorf("Unexpected IP for %s: Expected: %s, Got %s", tc.endpoint, tc.expectedIP, ip)
    45  			}
    46  		} else if ip != "" {
    47  			t.Errorf("Error did not occur for %s, expected: '%s' error", tc.endpoint, tc.expectedError)
    48  		}
    49  	}
    50  }
    51  
    52  func TestPortPart(t *testing.T) {
    53  	tests := []struct {
    54  		name     string
    55  		endpoint string
    56  		want     int
    57  		wantErr  bool
    58  	}{
    59  		{
    60  			"no error parsing from ipv4-ip:port",
    61  			"1.2.3.4:1024",
    62  			1024,
    63  			false,
    64  		},
    65  		{
    66  			"no error parsing from ipv6-ip:port",
    67  			"[2001:db8::2:2]:9999",
    68  			9999,
    69  			false,
    70  		},
    71  		{
    72  			"error: missing port",
    73  			"1.2.3.4",
    74  			-1,
    75  			true,
    76  		},
    77  		{
    78  			"error: invalid port '1-2'",
    79  			"1.2.3.4:1-2",
    80  			-1,
    81  			true,
    82  		},
    83  		{
    84  			"error: invalid port 'port'",
    85  			"100.200.3.4:port",
    86  			-1,
    87  			true,
    88  		},
    89  	}
    90  	for _, tt := range tests {
    91  		t.Run(tt.name, func(t *testing.T) {
    92  			got, err := PortPart(tt.endpoint)
    93  			if (err != nil) != tt.wantErr {
    94  				t.Errorf("PortPart() error = %v, wantErr %v", err, tt.wantErr)
    95  				return
    96  			}
    97  			if got != tt.want {
    98  				t.Errorf("PortPart() = %v, want %v", got, tt.want)
    99  			}
   100  		})
   101  	}
   102  }