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telegraf/plugins/serializers/influx/influx_test.go

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package influx
import (
"math"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/require"
)
func MustMetric(v telegraf.Metric, err error) telegraf.Metric {
if err != nil {
panic(err)
}
return v
}
var tests = []struct {
name string
maxBytes int
typeSupport FieldTypeSupport
input telegraf.Metric
output []byte
errReason string
}{
{
name: "minimal",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42 0\n"),
},
{
name: "multiple tags",
input: MustMetric(
metric.New(
"cpu",
map[string]string{
"host": "localhost",
"cpu": "CPU0",
},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu,cpu=CPU0,host=localhost value=42 0\n"),
},
{
name: "multiple fields",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"x": 42.0,
"y": 42.0,
},
time.Unix(0, 0),
),
),
output: []byte("cpu x=42,y=42 0\n"),
},
{
name: "float NaN",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"x": math.NaN(),
"y": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu y=42i 0\n"),
},
{
name: "float NaN only",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": math.NaN(),
},
time.Unix(0, 0),
),
),
errReason: NoFields,
},
{
name: "float Inf",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": math.Inf(1),
"y": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu y=42i 0\n"),
},
{
name: "integer field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42i 0\n"),
},
{
name: "integer field 64-bit",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": int64(123456789012345),
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=123456789012345i 0\n"),
},
{
name: "uint field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": uint64(42),
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42u 0\n"),
typeSupport: UintSupport,
},
{
name: "uint field max value",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": uint64(18446744073709551615),
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=18446744073709551615u 0\n"),
typeSupport: UintSupport,
},
{
name: "uint field no uint support",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": uint64(42),
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=42i 0\n"),
},
{
name: "uint field no uint support overflow",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": uint64(18446744073709551615),
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=9223372036854775807i 0\n"),
},
{
name: "bool field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": true,
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=true 0\n"),
},
{
name: "string field",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": "howdy",
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=\"howdy\" 0\n"),
},
{
name: "timestamp",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu value=42 1519194109000000042\n"),
},
{
name: "split fields exact",
maxBytes: 33,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu abc=123i 1519194109000000042\ncpu def=456i 1519194109000000042\n"),
},
{
name: "split fields extra",
maxBytes: 34,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu abc=123i 1519194109000000042\ncpu def=456i 1519194109000000042\n"),
},
{
name: "split_fields_overflow",
maxBytes: 43,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
"ghi": 789,
"jkl": 123,
},
time.Unix(1519194109, 42),
),
),
output: []byte("cpu abc=123i,def=456i 1519194109000000042\ncpu ghi=789i,jkl=123i 1519194109000000042\n"),
},
{
name: "name newline",
input: MustMetric(
metric.New(
"c\npu",
map[string]string{},
map[string]interface{}{
"value": 42,
},
time.Unix(0, 0),
),
),
output: []byte("c\\npu value=42i 0\n"),
},
{
name: "tag newline",
input: MustMetric(
metric.New(
"cpu",
map[string]string{
"host": "x\ny",
},
map[string]interface{}{
"value": 42,
},
time.Unix(0, 0),
),
),
output: []byte("cpu,host=x\\ny value=42i 0\n"),
},
{
name: "string newline",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": "x\ny",
},
time.Unix(0, 0),
),
),
output: []byte("cpu value=\"x\ny\" 0\n"),
},
{
name: "need more space",
maxBytes: 32,
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"abc": 123,
"def": 456,
},
time.Unix(1519194109, 42),
),
),
output: nil,
errReason: NeedMoreSpace,
},
{
name: "no fields",
input: MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{},
time.Unix(0, 0),
),
),
errReason: NoFields,
},
{
name: "procstat",
input: MustMetric(
metric.New(
"procstat",
map[string]string{
"exe": "bash",
"process_name": "bash",
},
map[string]interface{}{
"cpu_time": 0,
"cpu_time_guest": float64(0),
"cpu_time_guest_nice": float64(0),
"cpu_time_idle": float64(0),
"cpu_time_iowait": float64(0),
"cpu_time_irq": float64(0),
"cpu_time_nice": float64(0),
"cpu_time_soft_irq": float64(0),
"cpu_time_steal": float64(0),
"cpu_time_system": float64(0),
"cpu_time_user": float64(0.02),
"cpu_usage": float64(0),
"involuntary_context_switches": 2,
"memory_data": 1576960,
"memory_locked": 0,
"memory_rss": 5103616,
"memory_stack": 139264,
"memory_swap": 0,
"memory_vms": 21659648,
"nice_priority": 20,
"num_fds": 4,
"num_threads": 1,
"pid": 29417,
"read_bytes": 0,
"read_count": 259,
"realtime_priority": 0,
"rlimit_cpu_time_hard": 2147483647,
"rlimit_cpu_time_soft": 2147483647,
"rlimit_file_locks_hard": 2147483647,
"rlimit_file_locks_soft": 2147483647,
"rlimit_memory_data_hard": 2147483647,
"rlimit_memory_data_soft": 2147483647,
"rlimit_memory_locked_hard": 65536,
"rlimit_memory_locked_soft": 65536,
"rlimit_memory_rss_hard": 2147483647,
"rlimit_memory_rss_soft": 2147483647,
"rlimit_memory_stack_hard": 2147483647,
"rlimit_memory_stack_soft": 8388608,
"rlimit_memory_vms_hard": 2147483647,
"rlimit_memory_vms_soft": 2147483647,
"rlimit_nice_priority_hard": 0,
"rlimit_nice_priority_soft": 0,
"rlimit_num_fds_hard": 4096,
"rlimit_num_fds_soft": 1024,
"rlimit_realtime_priority_hard": 0,
"rlimit_realtime_priority_soft": 0,
"rlimit_signals_pending_hard": 78994,
"rlimit_signals_pending_soft": 78994,
"signals_pending": 0,
"voluntary_context_switches": 42,
"write_bytes": 106496,
"write_count": 35,
},
time.Unix(0, 1517620624000000000),
),
),
output: []byte("procstat,exe=bash,process_name=bash cpu_time=0i,cpu_time_guest=0,cpu_time_guest_nice=0,cpu_time_idle=0,cpu_time_iowait=0,cpu_time_irq=0,cpu_time_nice=0,cpu_time_soft_irq=0,cpu_time_steal=0,cpu_time_system=0,cpu_time_user=0.02,cpu_usage=0,involuntary_context_switches=2i,memory_data=1576960i,memory_locked=0i,memory_rss=5103616i,memory_stack=139264i,memory_swap=0i,memory_vms=21659648i,nice_priority=20i,num_fds=4i,num_threads=1i,pid=29417i,read_bytes=0i,read_count=259i,realtime_priority=0i,rlimit_cpu_time_hard=2147483647i,rlimit_cpu_time_soft=2147483647i,rlimit_file_locks_hard=2147483647i,rlimit_file_locks_soft=2147483647i,rlimit_memory_data_hard=2147483647i,rlimit_memory_data_soft=2147483647i,rlimit_memory_locked_hard=65536i,rlimit_memory_locked_soft=65536i,rlimit_memory_rss_hard=2147483647i,rlimit_memory_rss_soft=2147483647i,rlimit_memory_stack_hard=2147483647i,rlimit_memory_stack_soft=8388608i,rlimit_memory_vms_hard=2147483647i,rlimit_memory_vms_soft=2147483647i,rlimit_nice_priority_hard=0i,rlimit_nice_priority_soft=0i,rlimit_num_fds_hard=4096i,rlimit_num_fds_soft=1024i,rlimit_realtime_priority_hard=0i,rlimit_realtime_priority_soft=0i,rlimit_signals_pending_hard=78994i,rlimit_signals_pending_soft=78994i,signals_pending=0i,voluntary_context_switches=42i,write_bytes=106496i,write_count=35i 1517620624000000000\n"),
},
}
func TestSerializer(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
serializer := NewSerializer()
serializer.SetMaxLineBytes(tt.maxBytes)
serializer.SetFieldSortOrder(SortFields)
serializer.SetFieldTypeSupport(tt.typeSupport)
output, err := serializer.Serialize(tt.input)
if tt.errReason != "" {
require.Error(t, err)
require.Contains(t, err.Error(), tt.errReason)
}
require.Equal(t, string(tt.output), string(output))
})
}
}
func BenchmarkSerializer(b *testing.B) {
for _, tt := range tests {
b.Run(tt.name, func(b *testing.B) {
serializer := NewSerializer()
serializer.SetMaxLineBytes(tt.maxBytes)
serializer.SetFieldTypeSupport(tt.typeSupport)
for n := 0; n < b.N; n++ {
output, err := serializer.Serialize(tt.input)
_ = err
_ = output
}
})
}
}
func TestSerialize_SerializeBatch(t *testing.T) {
m := MustMetric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
)
metrics := []telegraf.Metric{m, m}
serializer := NewSerializer()
serializer.SetFieldSortOrder(SortFields)
output, err := serializer.SerializeBatch(metrics)
require.NoError(t, err)
require.Equal(t, []byte("cpu value=42 0\ncpu value=42 0\n"), output)
}
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