219 lines
7.4 KiB
Go
219 lines
7.4 KiB
Go
package ping
|
|
|
|
import (
|
|
"errors"
|
|
"reflect"
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/influxdb/telegraf/testutil"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
// BSD/Darwin ping output
|
|
var bsdPingOutput = `
|
|
PING www.google.com (216.58.217.36): 56 data bytes
|
|
64 bytes from 216.58.217.36: icmp_seq=0 ttl=55 time=15.087 ms
|
|
64 bytes from 216.58.217.36: icmp_seq=1 ttl=55 time=21.564 ms
|
|
64 bytes from 216.58.217.36: icmp_seq=2 ttl=55 time=27.263 ms
|
|
64 bytes from 216.58.217.36: icmp_seq=3 ttl=55 time=18.828 ms
|
|
64 bytes from 216.58.217.36: icmp_seq=4 ttl=55 time=18.378 ms
|
|
|
|
--- www.google.com ping statistics ---
|
|
5 packets transmitted, 5 packets received, 0.0% packet loss
|
|
round-trip min/avg/max/stddev = 15.087/20.224/27.263/4.076 ms
|
|
`
|
|
|
|
// Linux ping output
|
|
var linuxPingOutput = `
|
|
PING www.google.com (216.58.218.164) 56(84) bytes of data.
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=1 ttl=63 time=35.2 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=2 ttl=63 time=42.3 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=3 ttl=63 time=45.1 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=4 ttl=63 time=43.5 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=5 ttl=63 time=51.8 ms
|
|
|
|
--- www.google.com ping statistics ---
|
|
5 packets transmitted, 5 received, 0% packet loss, time 4010ms
|
|
rtt min/avg/max/mdev = 35.225/43.628/51.806/5.325 ms
|
|
`
|
|
|
|
// Fatal ping output (invalid argument)
|
|
var fatalPingOutput = `
|
|
ping: -i interval too short: Operation not permitted
|
|
`
|
|
|
|
// Test that ping command output is processed properly
|
|
func TestProcessPingOutput(t *testing.T) {
|
|
trans, rec, avg, err := processPingOutput(bsdPingOutput)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
|
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
|
assert.InDelta(t, 20.224, avg, 0.001)
|
|
|
|
trans, rec, avg, err = processPingOutput(linuxPingOutput)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
|
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
|
assert.InDelta(t, 43.628, avg, 0.001)
|
|
}
|
|
|
|
// Test that processPingOutput returns an error when 'ping' fails to run, such
|
|
// as when an invalid argument is provided
|
|
func TestErrorProcessPingOutput(t *testing.T) {
|
|
_, _, _, err := processPingOutput(fatalPingOutput)
|
|
assert.Error(t, err, "Error was expected from processPingOutput")
|
|
}
|
|
|
|
// Test that arg lists and created correctly
|
|
func TestArgs(t *testing.T) {
|
|
p := Ping{
|
|
Count: 2,
|
|
}
|
|
|
|
// Actual and Expected arg lists must be sorted for reflect.DeepEqual
|
|
|
|
actual := p.args("www.google.com")
|
|
expected := []string{"-c", "2", "www.google.com"}
|
|
sort.Strings(actual)
|
|
sort.Strings(expected)
|
|
assert.True(t, reflect.DeepEqual(expected, actual),
|
|
"Expected: %s Actual: %s", expected, actual)
|
|
|
|
p.Interface = "eth0"
|
|
actual = p.args("www.google.com")
|
|
expected = []string{"-c", "2", "-I", "eth0", "www.google.com"}
|
|
sort.Strings(actual)
|
|
sort.Strings(expected)
|
|
assert.True(t, reflect.DeepEqual(expected, actual),
|
|
"Expected: %s Actual: %s", expected, actual)
|
|
|
|
p.Timeout = 12.0
|
|
actual = p.args("www.google.com")
|
|
expected = []string{"-c", "2", "-I", "eth0", "-t", "12.0", "www.google.com"}
|
|
sort.Strings(actual)
|
|
sort.Strings(expected)
|
|
assert.True(t, reflect.DeepEqual(expected, actual),
|
|
"Expected: %s Actual: %s", expected, actual)
|
|
|
|
p.PingInterval = 1.2
|
|
actual = p.args("www.google.com")
|
|
expected = []string{"-c", "2", "-I", "eth0", "-t", "12.0", "-i", "1.2",
|
|
"www.google.com"}
|
|
sort.Strings(actual)
|
|
sort.Strings(expected)
|
|
assert.True(t, reflect.DeepEqual(expected, actual),
|
|
"Expected: %s Actual: %s", expected, actual)
|
|
}
|
|
|
|
func mockHostPinger(args ...string) (string, error) {
|
|
return linuxPingOutput, nil
|
|
}
|
|
|
|
// Test that Gather function works on a normal ping
|
|
func TestPingGather(t *testing.T) {
|
|
var acc testutil.Accumulator
|
|
p := Ping{
|
|
Urls: []string{"www.google.com", "www.reddit.com"},
|
|
pingHost: mockHostPinger,
|
|
}
|
|
|
|
p.Gather(&acc)
|
|
tags := map[string]string{"url": "www.google.com"}
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_transmitted", 5, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_received", 5, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("percent_packet_loss", 0.0, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("average_response_ms",
|
|
43.628, tags))
|
|
|
|
tags = map[string]string{"url": "www.reddit.com"}
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_transmitted", 5, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_received", 5, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("percent_packet_loss", 0.0, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("average_response_ms",
|
|
43.628, tags))
|
|
}
|
|
|
|
var lossyPingOutput = `
|
|
PING www.google.com (216.58.218.164) 56(84) bytes of data.
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=1 ttl=63 time=35.2 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=3 ttl=63 time=45.1 ms
|
|
64 bytes from host.net (216.58.218.164): icmp_seq=5 ttl=63 time=51.8 ms
|
|
|
|
--- www.google.com ping statistics ---
|
|
5 packets transmitted, 3 received, 40% packet loss, time 4010ms
|
|
rtt min/avg/max/mdev = 35.225/44.033/51.806/5.325 ms
|
|
`
|
|
|
|
func mockLossyHostPinger(args ...string) (string, error) {
|
|
return lossyPingOutput, nil
|
|
}
|
|
|
|
// Test that Gather works on a ping with lossy packets
|
|
func TestLossyPingGather(t *testing.T) {
|
|
var acc testutil.Accumulator
|
|
p := Ping{
|
|
Urls: []string{"www.google.com"},
|
|
pingHost: mockLossyHostPinger,
|
|
}
|
|
|
|
p.Gather(&acc)
|
|
tags := map[string]string{"url": "www.google.com"}
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_transmitted", 5, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_received", 3, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("percent_packet_loss", 40.0, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("average_response_ms", 44.033, tags))
|
|
}
|
|
|
|
var errorPingOutput = `
|
|
PING www.amazon.com (176.32.98.166): 56 data bytes
|
|
Request timeout for icmp_seq 0
|
|
|
|
--- www.amazon.com ping statistics ---
|
|
2 packets transmitted, 0 packets received, 100.0% packet loss
|
|
`
|
|
|
|
func mockErrorHostPinger(args ...string) (string, error) {
|
|
return errorPingOutput, errors.New("No packets received")
|
|
}
|
|
|
|
// Test that Gather works on a ping with no transmitted packets, even though the
|
|
// command returns an error
|
|
func TestBadPingGather(t *testing.T) {
|
|
var acc testutil.Accumulator
|
|
p := Ping{
|
|
Urls: []string{"www.amazon.com"},
|
|
pingHost: mockErrorHostPinger,
|
|
}
|
|
|
|
p.Gather(&acc)
|
|
tags := map[string]string{"url": "www.amazon.com"}
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_transmitted", 2, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("packets_received", 0, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("percent_packet_loss", 100.0, tags))
|
|
assert.NoError(t, acc.ValidateTaggedValue("average_response_ms", 0.0, tags))
|
|
}
|
|
|
|
func mockFatalHostPinger(args ...string) (string, error) {
|
|
return fatalPingOutput, errors.New("So very bad")
|
|
}
|
|
|
|
// Test that a fatal ping command does not gather any statistics.
|
|
func TestFatalPingGather(t *testing.T) {
|
|
var acc testutil.Accumulator
|
|
p := Ping{
|
|
Urls: []string{"www.amazon.com"},
|
|
pingHost: mockFatalHostPinger,
|
|
}
|
|
|
|
p.Gather(&acc)
|
|
assert.False(t, acc.HasMeasurement("packets_transmitted"),
|
|
"Fatal ping should not have packet measurements")
|
|
assert.False(t, acc.HasMeasurement("packets_received"),
|
|
"Fatal ping should not have packet measurements")
|
|
assert.False(t, acc.HasMeasurement("percent_packet_loss"),
|
|
"Fatal ping should not have packet measurements")
|
|
assert.False(t, acc.HasMeasurement("average_response_ms"),
|
|
"Fatal ping should not have packet measurements")
|
|
}
|