telegraf/metric_test.go

136 lines
3.2 KiB
Go

package telegraf
import (
"fmt"
"math"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
const validMs = `
cpu,cpu=cpu0,host=foo,datacenter=us-east usage_idle=99,usage_busy=1 1454105876344540456
`
const invalidMs = `
cpu, cpu=cpu0,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo usage_idle
cpu,host usage_idle=99
cpu,host=foo usage_idle=99 very bad metric
`
const validInvalidMs = `
cpu,cpu=cpu0,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu1,host=foo,datacenter=us-east usage_idle=51,usage_busy=49
cpu,cpu=cpu2,host=foo,datacenter=us-east usage_idle=60,usage_busy=40
cpu,host usage_idle=99
`
func TestParseValidMetrics(t *testing.T) {
metrics, err := ParseMetrics([]byte(validMs))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
m := metrics[0]
tags := map[string]string{
"host": "foo",
"datacenter": "us-east",
"cpu": "cpu0",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}
assert.Equal(t, tags, m.Tags())
assert.Equal(t, fields, m.Fields())
assert.Equal(t, "cpu", m.Name())
assert.Equal(t, int64(1454105876344540456), m.UnixNano())
}
func TestParseInvalidMetrics(t *testing.T) {
metrics, err := ParseMetrics([]byte(invalidMs))
assert.Error(t, err)
assert.Len(t, metrics, 0)
}
func TestParseValidAndInvalidMetrics(t *testing.T) {
metrics, err := ParseMetrics([]byte(validInvalidMs))
assert.Error(t, err)
assert.Len(t, metrics, 3)
}
func TestNewMetric(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
"datacenter": "us-east-1",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
}
m, err := NewMetric("cpu", tags, fields, now)
assert.NoError(t, err)
assert.Equal(t, tags, m.Tags())
assert.Equal(t, fields, m.Fields())
assert.Equal(t, "cpu", m.Name())
assert.Equal(t, now, m.Time())
assert.Equal(t, now.UnixNano(), m.UnixNano())
}
func TestNewMetricString(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
}
m, err := NewMetric("cpu", tags, fields, now)
assert.NoError(t, err)
lineProto := fmt.Sprintf("cpu,host=localhost usage_idle=99 %d",
now.UnixNano())
assert.Equal(t, lineProto, m.String())
lineProtoPrecision := fmt.Sprintf("cpu,host=localhost usage_idle=99 %d",
now.Unix())
assert.Equal(t, lineProtoPrecision, m.PrecisionString("s"))
}
func TestNewMetricStringNoTime(t *testing.T) {
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": float64(99),
}
m, err := NewMetric("cpu", tags, fields)
assert.NoError(t, err)
lineProto := fmt.Sprintf("cpu,host=localhost usage_idle=99")
assert.Equal(t, lineProto, m.String())
lineProtoPrecision := fmt.Sprintf("cpu,host=localhost usage_idle=99")
assert.Equal(t, lineProtoPrecision, m.PrecisionString("s"))
}
func TestNewMetricFailNaN(t *testing.T) {
now := time.Now()
tags := map[string]string{
"host": "localhost",
}
fields := map[string]interface{}{
"usage_idle": math.NaN(),
}
_, err := NewMetric("cpu", tags, fields, now)
assert.Error(t, err)
}