github.com/netdata/go.d.plugin@v0.58.1/pkg/socket/client_test.go (about)

     1  // SPDX-License-Identifier: GPL-3.0-or-later
     2  
     3  package socket
     4  
     5  import (
     6  	"crypto/tls"
     7  	"testing"
     8  	"time"
     9  
    10  	"github.com/stretchr/testify/assert"
    11  	"github.com/stretchr/testify/require"
    12  )
    13  
    14  const (
    15  	testServerAddress     = "127.0.0.1:9999"
    16  	testUdpServerAddress  = "udp://127.0.0.1:9999"
    17  	testUnixServerAddress = "/tmp/testSocketFD"
    18  	defaultTimeout        = 100 * time.Millisecond
    19  )
    20  
    21  var tcpConfig = Config{
    22  	Address:        testServerAddress,
    23  	ConnectTimeout: defaultTimeout,
    24  	ReadTimeout:    defaultTimeout,
    25  	WriteTimeout:   defaultTimeout,
    26  	TLSConf:        nil,
    27  }
    28  
    29  var udpConfig = Config{
    30  	Address:        testUdpServerAddress,
    31  	ConnectTimeout: defaultTimeout,
    32  	ReadTimeout:    defaultTimeout,
    33  	WriteTimeout:   defaultTimeout,
    34  	TLSConf:        nil,
    35  }
    36  
    37  var unixConfig = Config{
    38  	Address:        testUnixServerAddress,
    39  	ConnectTimeout: defaultTimeout,
    40  	ReadTimeout:    defaultTimeout,
    41  	WriteTimeout:   defaultTimeout,
    42  	TLSConf:        nil,
    43  }
    44  
    45  var tcpTlsConfig = Config{
    46  	Address:        testServerAddress,
    47  	ConnectTimeout: defaultTimeout,
    48  	ReadTimeout:    defaultTimeout,
    49  	WriteTimeout:   defaultTimeout,
    50  	TLSConf:        &tls.Config{},
    51  }
    52  
    53  func Test_clientCommand(t *testing.T) {
    54  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 1}
    55  	go func() { _ = srv.Run(); defer func() { _ = srv.Close() }() }()
    56  
    57  	time.Sleep(time.Millisecond * 100)
    58  	sock := New(tcpConfig)
    59  	require.NoError(t, sock.Connect())
    60  	err := sock.Command("ping\n", func(bytes []byte) bool {
    61  		assert.Equal(t, "pong", string(bytes))
    62  		return true
    63  	})
    64  	require.NoError(t, sock.Disconnect())
    65  	require.NoError(t, err)
    66  }
    67  
    68  func Test_clientTimeout(t *testing.T) {
    69  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 1}
    70  	go func() { _ = srv.Run() }()
    71  
    72  	time.Sleep(time.Millisecond * 100)
    73  	sock := New(tcpConfig)
    74  	require.NoError(t, sock.Connect())
    75  	sock.ReadTimeout = 0
    76  	sock.ReadTimeout = 0
    77  	err := sock.Command("ping\n", func(bytes []byte) bool {
    78  		assert.Equal(t, "pong", string(bytes))
    79  		return true
    80  	})
    81  	require.Error(t, err)
    82  }
    83  
    84  func Test_clientIncompleteSSL(t *testing.T) {
    85  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 1}
    86  	go func() { _ = srv.Run() }()
    87  
    88  	time.Sleep(time.Millisecond * 100)
    89  	sock := New(tcpTlsConfig)
    90  	err := sock.Connect()
    91  	require.Error(t, err)
    92  }
    93  
    94  func Test_clientCommandStopProcessing(t *testing.T) {
    95  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 2}
    96  	go func() { _ = srv.Run() }()
    97  
    98  	time.Sleep(time.Millisecond * 100)
    99  	sock := New(tcpConfig)
   100  	require.NoError(t, sock.Connect())
   101  	err := sock.Command("ping\n", func(bytes []byte) bool {
   102  		assert.Equal(t, "pong", string(bytes))
   103  		return false
   104  	})
   105  	require.NoError(t, sock.Disconnect())
   106  	require.NoError(t, err)
   107  }
   108  
   109  func Test_clientUDPCommand(t *testing.T) {
   110  	srv := &udpServer{addr: testServerAddress, rowsNumResp: 1}
   111  	go func() { _ = srv.Run(); defer func() { _ = srv.Close() }() }()
   112  
   113  	time.Sleep(time.Millisecond * 100)
   114  	sock := New(udpConfig)
   115  	require.NoError(t, sock.Connect())
   116  	err := sock.Command("ping\n", func(bytes []byte) bool {
   117  		assert.Equal(t, "pong", string(bytes))
   118  		return false
   119  	})
   120  	require.NoError(t, sock.Disconnect())
   121  	require.NoError(t, err)
   122  }
   123  
   124  func Test_clientTCPAddress(t *testing.T) {
   125  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 1}
   126  	go func() { _ = srv.Run() }()
   127  	time.Sleep(time.Millisecond * 100)
   128  
   129  	sock := New(tcpConfig)
   130  	require.NoError(t, sock.Connect())
   131  
   132  	tcpConfig.Address = "tcp://" + tcpConfig.Address
   133  	sock = New(tcpConfig)
   134  	require.NoError(t, sock.Connect())
   135  }
   136  
   137  func Test_clientUnixCommand(t *testing.T) {
   138  	srv := &unixServer{addr: testUnixServerAddress, rowsNumResp: 1}
   139  	// cleanup previous file descriptors
   140  	_ = srv.Close()
   141  	go func() { _ = srv.Run() }()
   142  
   143  	time.Sleep(time.Millisecond * 200)
   144  	sock := New(unixConfig)
   145  	require.NoError(t, sock.Connect())
   146  	err := sock.Command("ping\n", func(bytes []byte) bool {
   147  		assert.Equal(t, "pong", string(bytes))
   148  		return false
   149  	})
   150  	require.NoError(t, err)
   151  	require.NoError(t, sock.Disconnect())
   152  }
   153  
   154  func Test_clientEmptyProcessFunc(t *testing.T) {
   155  	srv := &tcpServer{addr: testServerAddress, rowsNumResp: 1}
   156  	go func() { _ = srv.Run() }()
   157  
   158  	time.Sleep(time.Millisecond * 100)
   159  	sock := New(tcpConfig)
   160  	require.NoError(t, sock.Connect())
   161  	err := sock.Command("ping\n", nil)
   162  	require.Error(t, err, "nil process func should return an error")
   163  }