639 lines
14 KiB
Go
639 lines
14 KiB
Go
package prometheus_client
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import (
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"testing"
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"time"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/metric"
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prometheus_input "github.com/influxdata/telegraf/plugins/inputs/prometheus"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/require"
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)
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func setUnixTime(client *PrometheusClient, sec int64) {
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client.now = func() time.Time {
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return time.Unix(sec, 0)
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}
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}
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// NewClient initializes a PrometheusClient.
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func NewClient() *PrometheusClient {
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return &PrometheusClient{
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ExpirationInterval: internal.Duration{Duration: time.Second * 60},
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fam: make(map[string]*MetricFamily),
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now: time.Now,
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}
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}
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func TestWrite_Basic(t *testing.T) {
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now := time.Now()
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pt1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 0.0},
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now)
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var metrics = []telegraf.Metric{
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pt1,
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}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, telegraf.Untyped, fam.TelegrafValueType)
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require.Equal(t, map[string]int{}, fam.LabelSet)
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sample, ok := fam.Samples[CreateSampleID(pt1.Tags())]
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require.True(t, ok)
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require.Equal(t, 0.0, sample.Value)
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require.True(t, now.Before(sample.Expiration))
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}
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func TestWrite_IntField(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 42},
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time.Now())
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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for _, v := range fam.Samples {
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require.Equal(t, 42.0, v.Value)
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}
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}
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func TestWrite_FieldNotValue(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"howdy": 0.0},
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time.Now())
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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fam, ok := client.fam["foo_howdy"]
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require.True(t, ok)
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for _, v := range fam.Samples {
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require.Equal(t, 0.0, v.Value)
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}
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}
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func TestWrite_SkipNonNumberField(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": "howdy"},
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time.Now())
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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_, ok := client.fam["foo"]
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require.False(t, ok)
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}
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func TestWrite_Counters(t *testing.T) {
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type args struct {
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measurement string
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tags map[string]string
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fields map[string]interface{}
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valueType telegraf.ValueType
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}
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var tests = []struct {
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name string
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args args
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err error
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metricName string
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valueType telegraf.ValueType
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}{
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{
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name: "field named value is not added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"value": 42},
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valueType: telegraf.Counter,
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},
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metricName: "foo",
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valueType: telegraf.Counter,
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},
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{
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name: "field named counter is not added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"counter": 42},
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valueType: telegraf.Counter,
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},
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metricName: "foo",
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valueType: telegraf.Counter,
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},
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{
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name: "field with any other name is added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"other": 42},
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valueType: telegraf.Counter,
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},
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metricName: "foo_other",
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valueType: telegraf.Counter,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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m, err := metric.New(
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tt.args.measurement,
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tt.args.tags,
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tt.args.fields,
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time.Now(),
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tt.args.valueType,
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)
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client := NewClient()
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err = client.Write([]telegraf.Metric{m})
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require.Equal(t, tt.err, err)
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fam, ok := client.fam[tt.metricName]
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require.True(t, ok)
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require.Equal(t, tt.valueType, fam.TelegrafValueType)
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})
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}
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}
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func TestWrite_Sanitize(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo.bar",
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map[string]string{"tag-with-dash": "localhost.local"},
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map[string]interface{}{"field-with-dash": 42},
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time.Now(),
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telegraf.Counter)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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fam, ok := client.fam["foo_bar_field_with_dash"]
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require.True(t, ok)
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require.Equal(t, map[string]int{"tag_with_dash": 1}, fam.LabelSet)
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sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
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require.True(t, ok)
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require.Equal(t, map[string]string{
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"tag_with_dash": "localhost.local"}, sample1.Labels)
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}
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func TestWrite_Gauge(t *testing.T) {
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type args struct {
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measurement string
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tags map[string]string
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fields map[string]interface{}
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valueType telegraf.ValueType
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}
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var tests = []struct {
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name string
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args args
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err error
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metricName string
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valueType telegraf.ValueType
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}{
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{
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name: "field named value is not added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"value": 42},
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valueType: telegraf.Gauge,
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},
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metricName: "foo",
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valueType: telegraf.Gauge,
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},
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{
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name: "field named gauge is not added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"gauge": 42},
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valueType: telegraf.Gauge,
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},
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metricName: "foo",
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valueType: telegraf.Gauge,
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},
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{
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name: "field with any other name is added to metric name",
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args: args{
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measurement: "foo",
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fields: map[string]interface{}{"other": 42},
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valueType: telegraf.Gauge,
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},
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metricName: "foo_other",
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valueType: telegraf.Gauge,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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m, err := metric.New(
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tt.args.measurement,
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tt.args.tags,
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tt.args.fields,
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time.Now(),
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tt.args.valueType,
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)
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client := NewClient()
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err = client.Write([]telegraf.Metric{m})
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require.Equal(t, tt.err, err)
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fam, ok := client.fam[tt.metricName]
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require.True(t, ok)
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require.Equal(t, tt.valueType, fam.TelegrafValueType)
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})
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}
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}
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func TestWrite_Summary(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"sum": 84, "count": 42, "0": 2, "0.5": 3, "1": 4},
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time.Now(),
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telegraf.Summary)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 1, len(fam.Samples))
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sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
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require.True(t, ok)
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require.Equal(t, 84.0, sample1.Sum)
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require.Equal(t, uint64(42), sample1.Count)
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require.Equal(t, 3, len(sample1.SummaryValue))
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}
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func TestWrite_Histogram(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"sum": 84, "count": 42, "0": 2, "0.5": 3, "1": 4},
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time.Now(),
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telegraf.Histogram)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 1, len(fam.Samples))
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sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
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require.True(t, ok)
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require.Equal(t, 84.0, sample1.Sum)
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require.Equal(t, uint64(42), sample1.Count)
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require.Equal(t, 3, len(sample1.HistogramValue))
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}
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func TestWrite_MixedValueType(t *testing.T) {
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now := time.Now()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 1.0},
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now,
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telegraf.Counter)
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p2, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 2.0},
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now,
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telegraf.Gauge)
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var metrics = []telegraf.Metric{p1, p2}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 1, len(fam.Samples))
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}
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func TestWrite_MixedValueTypeUpgrade(t *testing.T) {
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now := time.Now()
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p1, err := metric.New(
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"foo",
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map[string]string{"a": "x"},
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map[string]interface{}{"value": 1.0},
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now,
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telegraf.Untyped)
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p2, err := metric.New(
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"foo",
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map[string]string{"a": "y"},
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map[string]interface{}{"value": 2.0},
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now,
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telegraf.Gauge)
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var metrics = []telegraf.Metric{p1, p2}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 2, len(fam.Samples))
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}
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func TestWrite_MixedValueTypeDowngrade(t *testing.T) {
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now := time.Now()
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p1, err := metric.New(
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"foo",
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map[string]string{"a": "x"},
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map[string]interface{}{"value": 1.0},
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now,
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telegraf.Gauge)
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p2, err := metric.New(
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"foo",
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map[string]string{"a": "y"},
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map[string]interface{}{"value": 2.0},
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now,
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telegraf.Untyped)
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var metrics = []telegraf.Metric{p1, p2}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 2, len(fam.Samples))
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}
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func TestWrite_Tags(t *testing.T) {
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now := time.Now()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 1.0},
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now)
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p2, err := metric.New(
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"foo",
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map[string]string{"host": "localhost"},
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map[string]interface{}{"value": 2.0},
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now)
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var metrics = []telegraf.Metric{p1, p2}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, telegraf.Untyped, fam.TelegrafValueType)
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require.Equal(t, map[string]int{"host": 1}, fam.LabelSet)
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sample1, ok := fam.Samples[CreateSampleID(p1.Tags())]
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require.True(t, ok)
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require.Equal(t, 1.0, sample1.Value)
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require.True(t, now.Before(sample1.Expiration))
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sample2, ok := fam.Samples[CreateSampleID(p2.Tags())]
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require.True(t, ok)
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require.Equal(t, 2.0, sample2.Value)
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require.True(t, now.Before(sample2.Expiration))
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}
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func TestWrite_StringFields(t *testing.T) {
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now := time.Now()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 1.0, "status": "good"},
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now,
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telegraf.Counter)
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p2, err := metric.New(
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"bar",
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make(map[string]string),
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map[string]interface{}{"status": "needs numeric field"},
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now,
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telegraf.Gauge)
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var metrics = []telegraf.Metric{p1, p2}
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client := NewClient()
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err = client.Write(metrics)
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require.NoError(t, err)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 1, fam.LabelSet["status"])
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fam, ok = client.fam["bar"]
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require.False(t, ok)
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}
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func TestExpire(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 1.0},
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time.Now())
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setUnixTime(client, 0)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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p2, err := metric.New(
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"bar",
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make(map[string]string),
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map[string]interface{}{"value": 2.0},
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time.Now())
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setUnixTime(client, 1)
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err = client.Write([]telegraf.Metric{p2})
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setUnixTime(client, 61)
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require.Equal(t, 2, len(client.fam))
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client.Expire()
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require.Equal(t, 1, len(client.fam))
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}
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func TestExpire_TagsNoDecrement(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 1.0},
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time.Now())
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setUnixTime(client, 0)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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p2, err := metric.New(
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"foo",
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map[string]string{"host": "localhost"},
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map[string]interface{}{"value": 2.0},
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time.Now())
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setUnixTime(client, 1)
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err = client.Write([]telegraf.Metric{p2})
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setUnixTime(client, 61)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 2, len(fam.Samples))
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client.Expire()
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require.Equal(t, 1, len(fam.Samples))
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require.Equal(t, map[string]int{"host": 1}, fam.LabelSet)
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}
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func TestExpire_TagsWithDecrement(t *testing.T) {
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client := NewClient()
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p1, err := metric.New(
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"foo",
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map[string]string{"host": "localhost"},
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map[string]interface{}{"value": 1.0},
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time.Now())
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setUnixTime(client, 0)
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err = client.Write([]telegraf.Metric{p1})
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require.NoError(t, err)
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p2, err := metric.New(
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"foo",
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make(map[string]string),
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map[string]interface{}{"value": 2.0},
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time.Now())
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setUnixTime(client, 1)
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err = client.Write([]telegraf.Metric{p2})
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setUnixTime(client, 61)
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fam, ok := client.fam["foo"]
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require.True(t, ok)
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require.Equal(t, 2, len(fam.Samples))
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client.Expire()
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require.Equal(t, 1, len(fam.Samples))
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require.Equal(t, map[string]int{"host": 0}, fam.LabelSet)
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}
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var pTesting *PrometheusClient
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|
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func TestPrometheusWritePointEmptyTag(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip("Skipping integration test in short mode")
|
|
}
|
|
|
|
pClient, p, err := setupPrometheus()
|
|
require.NoError(t, err)
|
|
defer pClient.Stop()
|
|
|
|
now := time.Now()
|
|
tags := make(map[string]string)
|
|
pt1, _ := metric.New(
|
|
"test_point_1",
|
|
tags,
|
|
map[string]interface{}{"value": 0.0},
|
|
now)
|
|
pt2, _ := metric.New(
|
|
"test_point_2",
|
|
tags,
|
|
map[string]interface{}{"value": 1.0},
|
|
now)
|
|
var metrics = []telegraf.Metric{
|
|
pt1,
|
|
pt2,
|
|
}
|
|
require.NoError(t, pClient.Write(metrics))
|
|
|
|
expected := []struct {
|
|
name string
|
|
value float64
|
|
tags map[string]string
|
|
}{
|
|
{"test_point_1", 0.0, tags},
|
|
{"test_point_2", 1.0, tags},
|
|
}
|
|
|
|
var acc testutil.Accumulator
|
|
|
|
require.NoError(t, p.Gather(&acc))
|
|
for _, e := range expected {
|
|
acc.AssertContainsFields(t, e.name,
|
|
map[string]interface{}{"value": e.value})
|
|
}
|
|
|
|
tags = make(map[string]string)
|
|
tags["testtag"] = "testvalue"
|
|
pt3, _ := metric.New(
|
|
"test_point_3",
|
|
tags,
|
|
map[string]interface{}{"value": 0.0},
|
|
now)
|
|
pt4, _ := metric.New(
|
|
"test_point_4",
|
|
tags,
|
|
map[string]interface{}{"value": 1.0},
|
|
now)
|
|
metrics = []telegraf.Metric{
|
|
pt3,
|
|
pt4,
|
|
}
|
|
require.NoError(t, pClient.Write(metrics))
|
|
|
|
expected2 := []struct {
|
|
name string
|
|
value float64
|
|
}{
|
|
{"test_point_3", 0.0},
|
|
{"test_point_4", 1.0},
|
|
}
|
|
|
|
require.NoError(t, p.Gather(&acc))
|
|
for _, e := range expected2 {
|
|
acc.AssertContainsFields(t, e.name,
|
|
map[string]interface{}{"value": e.value})
|
|
}
|
|
}
|
|
|
|
func setupPrometheus() (*PrometheusClient, *prometheus_input.Prometheus, error) {
|
|
if pTesting == nil {
|
|
pTesting = NewClient()
|
|
pTesting.Listen = "localhost:9127"
|
|
pTesting.Path = "/metrics"
|
|
err := pTesting.Start()
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
} else {
|
|
pTesting.fam = make(map[string]*MetricFamily)
|
|
}
|
|
|
|
time.Sleep(time.Millisecond * 200)
|
|
|
|
p := &prometheus_input.Prometheus{
|
|
URLs: []string{"http://localhost:9127/metrics"},
|
|
}
|
|
|
|
return pTesting, p, nil
|
|
}
|