650 lines
18 KiB
Go
650 lines
18 KiB
Go
package prometheus
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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dto "github.com/prometheus/client_model/go"
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"github.com/stretchr/testify/require"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/parsers/prometheus/common"
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"github.com/influxdata/telegraf/testutil"
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)
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const (
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//nolint:lll // conditionally long lines allowed
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validUniqueGauge = `# HELP cadvisor_version_info A metric with a constant '1' value labeled by kernel version, OS version, docker version, cadvisor version & cadvisor revision.
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# TYPE cadvisor_version_info gauge
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cadvisor_version_info{cadvisorRevision="",cadvisorVersion="",dockerVersion="1.8.2",kernelVersion="3.10.0-229.20.1.el7.x86_64",osVersion="CentOS Linux 7 (Core)"} 1
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`
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validUniqueCounter = `# HELP get_token_fail_count Counter of failed Token() requests to the alternate token source
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# TYPE get_token_fail_count counter
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get_token_fail_count 0
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`
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validUniqueSummary = `# HELP http_request_duration_microseconds The HTTP request latencies in microseconds.
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# TYPE http_request_duration_microseconds summary
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http_request_duration_microseconds{handler="prometheus",quantile="0.5"} 552048.506
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http_request_duration_microseconds{handler="prometheus",quantile="0.9"} 5.876804288e+06
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http_request_duration_microseconds{handler="prometheus",quantile="0.99"} 5.876804288e+06
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http_request_duration_microseconds_sum{handler="prometheus"} 1.8909097205e+07
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http_request_duration_microseconds_count{handler="prometheus"} 9
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`
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validUniqueHistogram = `# HELP apiserver_request_latencies Response latency distribution in microseconds for each verb, resource and client.
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# TYPE apiserver_request_latencies histogram
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="125000"} 1994
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="250000"} 1997
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="500000"} 2000
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="1e+06"} 2005
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="2e+06"} 2012
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="4e+06"} 2017
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="8e+06"} 2024
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apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="+Inf"} 2025
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apiserver_request_latencies_sum{resource="bindings",verb="POST"} 1.02726334e+08
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apiserver_request_latencies_count{resource="bindings",verb="POST"} 2025
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`
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validUniqueHistogramJSON = `{
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"name": "apiserver_request_latencies",
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"help": "Response latency distribution in microseconds for each verb, resource and client.",
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"type": "HISTOGRAM",
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"metric": [
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{
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"label": [
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{"name": "resource", "value": "bindings"},
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{"name": "verb", "value": "POST"}
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],
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"histogram": {
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"sample_count": 2025,
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"sample_sum": 1.02726334e+08,
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"bucket": [
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{"cumulative_count": 1994,"upper_bound": 125000},
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{"cumulative_count": 1997,"upper_bound": 250000},
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{"cumulative_count": 2000,"upper_bound": 500000},
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{"cumulative_count": 2005,"upper_bound": 1e+06},
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{"cumulative_count": 2012,"upper_bound": 2e+06},
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{"cumulative_count": 2017,"upper_bound": 4e+06},
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{"cumulative_count": 2024,"upper_bound": 8e+06}
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]
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}
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}
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]
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}`
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)
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func TestParsingValidGauge(t *testing.T) {
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"osVersion": "CentOS Linux 7 (Core)",
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"cadvisorRevision": "",
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"cadvisorVersion": "",
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"dockerVersion": "1.8.2",
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"kernelVersion": "3.10.0-229.20.1.el7.x86_64",
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},
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map[string]interface{}{
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"cadvisor_version_info": float64(1),
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},
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time.Unix(0, 0),
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telegraf.Gauge,
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),
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}
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metrics, err := parse([]byte(validUniqueGauge))
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
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}
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func TestParsingValidCounter(t *testing.T) {
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{},
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map[string]interface{}{
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"get_token_fail_count": float64(0),
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},
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time.Unix(0, 0),
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telegraf.Counter,
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),
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}
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metrics, err := parse([]byte(validUniqueCounter))
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
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}
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func TestParsingValidSummary(t *testing.T) {
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"handler": "prometheus",
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},
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map[string]interface{}{
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"http_request_duration_microseconds_sum": float64(1.8909097205e+07),
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"http_request_duration_microseconds_count": float64(9.0),
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},
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time.Unix(0, 0),
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telegraf.Summary,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"handler": "prometheus",
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"quantile": "0.5",
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},
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map[string]interface{}{
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"http_request_duration_microseconds": float64(552048.506),
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},
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time.Unix(0, 0),
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telegraf.Summary,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"handler": "prometheus",
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"quantile": "0.9",
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},
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map[string]interface{}{
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"http_request_duration_microseconds": float64(5.876804288e+06),
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},
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time.Unix(0, 0),
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telegraf.Summary,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"handler": "prometheus",
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"quantile": "0.99",
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},
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map[string]interface{}{
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"http_request_duration_microseconds": float64(5.876804288e+6),
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},
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time.Unix(0, 0),
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telegraf.Summary,
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),
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}
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metrics, err := parse([]byte(validUniqueSummary))
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require.NoError(t, err)
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require.Len(t, metrics, 4)
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
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}
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func TestParsingValidHistogram(t *testing.T) {
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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},
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map[string]interface{}{
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"apiserver_request_latencies_count": float64(2025.0),
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"apiserver_request_latencies_sum": float64(1.02726334e+08),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "125000",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(1994.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "250000",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(1997.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "500000",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2000.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "1e+06",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2005.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "2e+06",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2012.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "4e+06",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2017.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "8e+06",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2024.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"verb": "POST",
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"resource": "bindings",
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"le": "+Inf",
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},
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map[string]interface{}{
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"apiserver_request_latencies_bucket": float64(2025.0),
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},
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time.Unix(0, 0),
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telegraf.Histogram,
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),
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}
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metrics, err := parse([]byte(validUniqueHistogram))
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require.NoError(t, err)
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require.Len(t, metrics, 9)
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
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}
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func TestDefautTags(t *testing.T) {
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"osVersion": "CentOS Linux 7 (Core)",
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"cadvisorRevision": "",
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"cadvisorVersion": "",
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"dockerVersion": "1.8.2",
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"kernelVersion": "3.10.0-229.20.1.el7.x86_64",
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"defaultTag": "defaultTagValue",
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},
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map[string]interface{}{
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"cadvisor_version_info": float64(1),
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},
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time.Unix(0, 0),
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telegraf.Gauge,
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),
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}
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parser := Parser{
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DefaultTags: map[string]string{
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"defaultTag": "defaultTagValue",
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"dockerVersion": "to_be_overriden",
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},
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}
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metrics, err := parser.Parse([]byte(validUniqueGauge))
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
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}
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func TestMetricsWithTimestamp(t *testing.T) {
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testTime := time.Date(2020, time.October, 4, 17, 0, 0, 0, time.UTC)
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testTimeUnix := testTime.UnixNano() / int64(time.Millisecond)
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metricsWithTimestamps := fmt.Sprintf(`
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# TYPE test_counter counter
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test_counter{label="test"} 1 %d
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`, testTimeUnix)
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"label": "test",
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},
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map[string]interface{}{
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"test_counter": float64(1.0),
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},
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testTime,
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telegraf.Counter,
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),
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}
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metrics, _ := parse([]byte(metricsWithTimestamps))
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testutil.RequireMetricsEqual(t, expected, metrics, testutil.SortMetrics())
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}
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func TestMetricsWithoutIgnoreTimestamp(t *testing.T) {
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testTime := time.Date(2020, time.October, 4, 17, 0, 0, 0, time.UTC)
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testTimeUnix := testTime.UnixNano() / int64(time.Millisecond)
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metricsWithTimestamps := fmt.Sprintf(`
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# TYPE test_counter counter
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test_counter{label="test"} 1 %d
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`, testTimeUnix)
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expected := testutil.MustMetric(
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"prometheus",
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map[string]string{
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"label": "test",
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},
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map[string]interface{}{
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"test_counter": float64(1.0),
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},
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testTime,
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telegraf.Counter,
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)
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parser := Parser{IgnoreTimestamp: true}
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metric, _ := parser.ParseLine(metricsWithTimestamps)
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testutil.RequireMetricEqual(t, expected, metric, testutil.IgnoreTime(), testutil.SortMetrics())
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require.WithinDuration(t, time.Now(), metric.Time(), 5*time.Second)
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}
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func parse(buf []byte) ([]telegraf.Metric, error) {
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parser := Parser{}
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return parser.Parse(buf)
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}
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func TestParserProtobufHeader(t *testing.T) {
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var uClient = &http.Client{
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Transport: &http.Transport{
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DisableKeepAlives: true,
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},
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}
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expected := []telegraf.Metric{
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
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},
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map[string]interface{}{
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"swap_free": 9.77911808e+08,
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},
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time.Unix(0, 0),
|
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2,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
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},
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map[string]interface{}{
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"swap_in": 2.031616e+06,
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},
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time.Unix(0, 0),
|
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1,
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),
|
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
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},
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map[string]interface{}{
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"swap_out": 1.579008e+07,
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},
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time.Unix(0, 0),
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1,
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),
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
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},
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map[string]interface{}{
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"swap_total": 9.93185792e+08,
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},
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time.Unix(0, 0),
|
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2,
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),
|
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
|
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},
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map[string]interface{}{
|
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"swap_used": 1.5273984e+07,
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},
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time.Unix(0, 0),
|
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2,
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),
|
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testutil.MustMetric(
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"prometheus",
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map[string]string{
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"host": "omsk",
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},
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map[string]interface{}{
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"swap_used_percent": 1.5378778193395661,
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},
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time.Unix(0, 0),
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2,
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),
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}
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sampleProtoBufData := []uint8{67, 10, 9, 115, 119, 97, 112, 95, 102, 114, 101, 101, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102, 32, 99, 111, 108, 108,
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101, 99, 116, 101, 100, 32, 109, 101, 116, 114, 105, 99, 24, 1, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109, 115, 107, 18, 9, 9, 0, 0,
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0, 0, 224, 36, 205, 65, 65, 10, 7, 115, 119, 97, 112, 95, 105, 110, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102, 32, 99, 111, 108, 108, 101, 99, 116,
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101, 100, 32, 109, 101, 116, 114, 105, 99, 24, 0, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109, 115, 107, 26, 9, 9, 0, 0, 0, 0, 0, 0,
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63, 65, 66, 10, 8, 115, 119, 97, 112, 95, 111, 117, 116, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102, 32, 99, 111, 108, 108, 101, 99, 116, 101, 100,
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32, 109, 101, 116, 114, 105, 99, 24, 0, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109, 115, 107, 26, 9, 9, 0, 0, 0, 0, 0, 30, 110, 65,
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68, 10, 10, 115, 119, 97, 112, 95, 116, 111, 116, 97, 108, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102, 32, 99, 111, 108, 108, 101, 99, 116, 101,
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100, 32, 109, 101, 116, 114, 105, 99, 24, 1, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109, 115, 107, 18, 9, 9, 0, 0, 0, 0, 104, 153,
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205, 65, 67, 10, 9, 115, 119, 97, 112, 95, 117, 115, 101, 100, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102, 32, 99, 111, 108, 108, 101, 99, 116,
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101, 100, 32, 109, 101, 116, 114, 105, 99, 24, 1, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109, 115, 107, 18, 9, 9, 0, 0, 0, 0, 0, 34,
|
|
109, 65, 75, 10, 17, 115, 119, 97, 112, 95, 117, 115, 101, 100, 95, 112, 101, 114, 99, 101, 110, 116, 18, 25, 84, 101, 108, 101, 103, 114, 97, 102,
|
|
32, 99, 111, 108, 108, 101, 99, 116, 101, 100, 32, 109, 101, 116, 114, 105, 99, 24, 1, 34, 25, 10, 12, 10, 4, 104, 111, 115, 116, 18, 4, 111, 109,
|
|
115, 107, 18, 9, 9, 109, 234, 180, 197, 37, 155, 248, 63}
|
|
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Type", "application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited")
|
|
_, err := w.Write(sampleProtoBufData)
|
|
require.NoError(t, err)
|
|
}))
|
|
defer ts.Close()
|
|
req, err := http.NewRequest("GET", ts.URL, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to create new request '%s': %s", ts.URL, err)
|
|
}
|
|
var resp *http.Response
|
|
resp, err = uClient.Do(req)
|
|
if err != nil {
|
|
t.Fatalf("error making HTTP request to %s: %s", ts.URL, err)
|
|
}
|
|
defer resp.Body.Close()
|
|
body, err := io.ReadAll(resp.Body)
|
|
if err != nil {
|
|
t.Fatalf("error reading body: %s", err)
|
|
}
|
|
parser := Parser{Header: resp.Header}
|
|
metrics, err := parser.Parse(body)
|
|
if err != nil {
|
|
t.Fatalf("error reading metrics for %s: %s", ts.URL, err)
|
|
}
|
|
testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
|
|
}
|
|
|
|
func TestHistogramInfBucketPresence(t *testing.T) {
|
|
expected := []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_count": float64(2025.0),
|
|
"apiserver_request_latencies_sum": float64(1.02726334e+08),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "125000",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(1994.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "250000",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(1997.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "500000",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2000.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "1e+06",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2005.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "2e+06",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2012.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "4e+06",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2017.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "8e+06",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2024.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"verb": "POST",
|
|
"resource": "bindings",
|
|
"le": "+Inf",
|
|
},
|
|
map[string]interface{}{
|
|
"apiserver_request_latencies_bucket": float64(2025.0),
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
}
|
|
|
|
var metricFamily dto.MetricFamily
|
|
err := json.Unmarshal([]byte(validUniqueHistogramJSON), &metricFamily)
|
|
require.NoError(t, err)
|
|
|
|
m := metricFamily.Metric[0]
|
|
tags := common.MakeLabels(m, map[string]string{})
|
|
metrics := makeBuckets(m, tags, *metricFamily.Name, metricFamily.GetType(), time.Now())
|
|
|
|
testutil.RequireMetricsEqual(t, expected, metrics, testutil.IgnoreTime(), testutil.SortMetrics())
|
|
}
|