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telegraf/plugins/processors/converter/converter_test.go

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package converter
import (
"math"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/stretchr/testify/require"
)
func Metric(v telegraf.Metric, err error) telegraf.Metric {
if err != nil {
panic(err)
}
return v
}
func TestConverter(t *testing.T) {
tests := []struct {
name string
converter *Converter
input telegraf.Metric
expected telegraf.Metric
}{
{
name: "empty",
converter: &Converter{},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"value": 42.0,
},
time.Unix(0, 0),
),
),
},
{
name: "from tag",
converter: &Converter{
Tags: &Conversion{
String: []string{"string"},
Integer: []string{"int"},
Unsigned: []string{"uint"},
Boolean: []string{"bool"},
Float: []string{"float"},
Tag: []string{"tag"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{
"float": "42",
"int": "42",
"uint": "42",
"bool": "true",
"string": "howdy",
"tag": "tag",
},
map[string]interface{}{},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"tag": "tag",
},
map[string]interface{}{
"float": 42.0,
"int": int64(42),
"uint": uint64(42),
"bool": true,
"string": "howdy",
},
time.Unix(0, 0),
),
),
},
{
name: "from tag unconvertible",
converter: &Converter{
Tags: &Conversion{
Integer: []string{"int"},
Unsigned: []string{"uint"},
Boolean: []string{"bool"},
Float: []string{"float"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{
"float": "a",
"int": "b",
"uint": "c",
"bool": "maybe",
},
map[string]interface{}{},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{},
time.Unix(0, 0),
),
),
},
{
name: "from string field",
converter: &Converter{
Fields: &Conversion{
String: []string{"a"},
Integer: []string{"b"},
Unsigned: []string{"c"},
Boolean: []string{"d"},
Float: []string{"e"},
Tag: []string{"f"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": "howdy",
"b": "42",
"c": "42",
"d": "true",
"e": "42.0",
"f": "foo",
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"f": "foo",
},
map[string]interface{}{
"a": "howdy",
"b": int64(42),
"c": uint64(42),
"d": true,
"e": 42.0,
},
time.Unix(0, 0),
),
),
},
{
name: "from string field unconvertible",
converter: &Converter{
Fields: &Conversion{
Integer: []string{"a"},
Unsigned: []string{"b"},
Boolean: []string{"c"},
Float: []string{"d"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": "a",
"b": "b",
"c": "c",
"d": "d",
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{},
time.Unix(0, 0),
),
),
},
{
name: "from integer field",
converter: &Converter{
Fields: &Conversion{
String: []string{"a"},
Integer: []string{"b"},
Unsigned: []string{"c", "negative_uint"},
Boolean: []string{"d"},
Float: []string{"e"},
Tag: []string{"f"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": int64(42),
"b": int64(42),
"c": int64(42),
"d": int64(42),
"e": int64(42),
"f": int64(42),
"negative_uint": int64(-42),
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"f": "42",
},
map[string]interface{}{
"a": "42",
"b": int64(42),
"c": uint64(42),
"d": true,
"e": 42.0,
"negative_uint": uint64(0),
},
time.Unix(0, 0),
),
),
},
{
name: "from unsigned field",
converter: &Converter{
Fields: &Conversion{
String: []string{"a"},
Integer: []string{"b", "overflow_int"},
Unsigned: []string{"c"},
Boolean: []string{"d"},
Float: []string{"e"},
Tag: []string{"f"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": uint64(42),
"b": uint64(42),
"c": uint64(42),
"d": uint64(42),
"e": uint64(42),
"f": uint64(42),
"overflow_int": uint64(math.MaxUint64),
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"f": "42",
},
map[string]interface{}{
"a": "42",
"b": int64(42),
"c": uint64(42),
"d": true,
"e": 42.0,
"overflow_int": int64(math.MaxInt64),
},
time.Unix(0, 0),
),
),
},
{
name: "out of range for unsigned",
converter: &Converter{
Fields: &Conversion{
Unsigned: []string{"a", "b"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": int64(-42),
"b": math.MaxFloat64,
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": uint64(0),
"b": uint64(math.MaxUint64),
},
time.Unix(0, 0),
),
),
},
{
name: "boolean field",
converter: &Converter{
Fields: &Conversion{
String: []string{"a", "af"},
Integer: []string{"b", "bf"},
Unsigned: []string{"c", "cf"},
Boolean: []string{"d", "df"},
Float: []string{"e", "ef"},
Tag: []string{"f", "ff"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": true,
"b": true,
"c": true,
"d": true,
"e": true,
"f": true,
"af": false,
"bf": false,
"cf": false,
"df": false,
"ef": false,
"ff": false,
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"f": "true",
"ff": "false",
},
map[string]interface{}{
"a": "true",
"af": "false",
"b": int64(1),
"bf": int64(0),
"c": uint64(1),
"cf": uint64(0),
"d": true,
"df": false,
"e": 1.0,
"ef": 0.0,
},
time.Unix(0, 0),
),
),
},
{
name: "from float field",
converter: &Converter{
Fields: &Conversion{
String: []string{"a"},
Integer: []string{"b", "too_large_int", "too_small_int"},
Unsigned: []string{"c", "negative_uint", "too_large_uint", "too_small_uint"},
Boolean: []string{"d"},
Float: []string{"e"},
Tag: []string{"f"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"a": 42.0,
"b": 42.0,
"c": 42.0,
"d": 42.0,
"e": 42.0,
"f": 42.0,
"too_large_int": math.MaxFloat64,
"too_large_uint": math.MaxFloat64,
"too_small_int": -math.MaxFloat64,
"too_small_uint": -math.MaxFloat64,
"negative_uint": -42.0,
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{
"f": "42",
},
map[string]interface{}{
"a": "42",
"b": int64(42),
"c": uint64(42),
"d": true,
"e": 42.0,
"too_large_int": int64(math.MaxInt64),
"too_large_uint": uint64(math.MaxUint64),
"too_small_int": int64(math.MinInt64),
"too_small_uint": uint64(0),
"negative_uint": uint64(0),
},
time.Unix(0, 0),
),
),
},
{
name: "globbing",
converter: &Converter{
Fields: &Conversion{
Integer: []string{"int_*"},
},
},
input: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"int_a": "1",
"int_b": "2",
"float_a": 1.0,
},
time.Unix(0, 0),
),
),
expected: Metric(
metric.New(
"cpu",
map[string]string{},
map[string]interface{}{
"int_a": int64(1),
"int_b": int64(2),
"float_a": 1.0,
},
time.Unix(0, 0),
),
),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics := tt.converter.Apply(tt.input)
require.Equal(t, 1, len(metrics))
require.Equal(t, tt.expected.Name(), metrics[0].Name())
require.Equal(t, tt.expected.Tags(), metrics[0].Tags())
require.Equal(t, tt.expected.Fields(), metrics[0].Fields())
require.Equal(t, tt.expected.Time(), metrics[0].Time())
})
}
}
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