telegraf/plugins/inputs/net_response/net_response_test.go

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package net_response
import (
"net"
"regexp"
"sync"
"testing"
"time"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestBadProtocol(t *testing.T) {
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Protocol: "unknownprotocol",
Address: ":9999",
}
// Error
err1 := c.Gather(&acc)
require.Error(t, err1)
assert.Equal(t, "Bad protocol", err1.Error())
}
func TestTCPError(t *testing.T) {
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Protocol: "tcp",
Address: ":9999",
}
// Error
err1 := c.Gather(&acc)
require.Error(t, err1)
assert.Contains(t, err1.Error(), "getsockopt: connection refused")
}
func TestTCPOK1(t *testing.T) {
var wg sync.WaitGroup
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Address: "127.0.0.1:2004",
Send: "test",
Expect: "test",
ReadTimeout: internal.Duration{Duration: time.Second * 3},
Timeout: internal.Duration{Duration: time.Second},
Protocol: "tcp",
}
// Start TCP server
wg.Add(1)
go TCPServer(t, &wg)
wg.Wait()
// Connect
wg.Add(1)
err1 := c.Gather(&acc)
wg.Wait()
// Override response time
for _, p := range acc.Metrics {
p.Fields["response_time"] = 1.0
}
require.NoError(t, err1)
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"string_found": true,
"response_time": 1.0,
},
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map[string]string{"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
},
)
// Waiting TCPserver
wg.Wait()
}
func TestTCPOK2(t *testing.T) {
var wg sync.WaitGroup
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Address: "127.0.0.1:2004",
Send: "test",
Expect: "test2",
ReadTimeout: internal.Duration{Duration: time.Second * 3},
Timeout: internal.Duration{Duration: time.Second},
Protocol: "tcp",
}
// Start TCP server
wg.Add(1)
go TCPServer(t, &wg)
wg.Wait()
// Connect
wg.Add(1)
err1 := c.Gather(&acc)
wg.Wait()
// Override response time
for _, p := range acc.Metrics {
p.Fields["response_time"] = 1.0
}
require.NoError(t, err1)
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"string_found": false,
"response_time": 1.0,
},
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map[string]string{"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
},
)
// Waiting TCPserver
wg.Wait()
}
func TestUDPrror(t *testing.T) {
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Address: ":9999",
Send: "test",
Expect: "test",
Protocol: "udp",
}
// Error
err1 := c.Gather(&acc)
require.Error(t, err1)
assert.Regexp(t, regexp.MustCompile(`read udp 127.0.0.1:[0-9]*->127.0.0.1:9999: recvfrom: connection refused`), err1.Error())
}
func TestUDPOK1(t *testing.T) {
var wg sync.WaitGroup
var acc testutil.Accumulator
// Init plugin
c := NetResponse{
Address: "127.0.0.1:2004",
Send: "test",
Expect: "test",
ReadTimeout: internal.Duration{Duration: time.Second * 3},
Timeout: internal.Duration{Duration: time.Second},
Protocol: "udp",
}
// Start UDP server
wg.Add(1)
go UDPServer(t, &wg)
wg.Wait()
// Connect
wg.Add(1)
err1 := c.Gather(&acc)
wg.Wait()
// Override response time
for _, p := range acc.Metrics {
p.Fields["response_time"] = 1.0
}
require.NoError(t, err1)
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"string_found": true,
"response_time": 1.0,
},
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map[string]string{"server": "127.0.0.1",
"port": "2004",
"protocol": "udp",
},
)
// Waiting TCPserver
wg.Wait()
}
func UDPServer(t *testing.T, wg *sync.WaitGroup) {
udpAddr, _ := net.ResolveUDPAddr("udp", "127.0.0.1:2004")
conn, _ := net.ListenUDP("udp", udpAddr)
wg.Done()
buf := make([]byte, 1024)
_, remoteaddr, _ := conn.ReadFromUDP(buf)
conn.WriteToUDP(buf, remoteaddr)
conn.Close()
wg.Done()
}
func TCPServer(t *testing.T, wg *sync.WaitGroup) {
tcpAddr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:2004")
tcpServer, _ := net.ListenTCP("tcp", tcpAddr)
wg.Done()
conn, _ := tcpServer.AcceptTCP()
buf := make([]byte, 1024)
conn.Read(buf)
conn.Write(buf)
conn.CloseWrite()
tcpServer.Close()
wg.Done()
}