143 lines
5.4 KiB
Go
143 lines
5.4 KiB
Go
package prometheus
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import (
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"fmt"
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"net/http"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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const 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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const 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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const 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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const 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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func TestParseValidPrometheus(t *testing.T) {
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// Gauge value
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metrics, err := Parse([]byte(validUniqueGauge), http.Header{}, false)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "cadvisor_version_info", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"gauge": float64(1),
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}, metrics[0].Fields())
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require.Equal(t, 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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}, metrics[0].Tags())
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// Counter value
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metrics, err = Parse([]byte(validUniqueCounter), http.Header{}, false)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "get_token_fail_count", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"counter": float64(0),
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}, metrics[0].Fields())
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require.Equal(t, map[string]string{}, metrics[0].Tags())
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// Summary data
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//SetDefaultTags(map[string]string{})
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metrics, err = Parse([]byte(validUniqueSummary), http.Header{}, false)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "http_request_duration_microseconds", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"0.5": 552048.506,
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"0.9": 5.876804288e+06,
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"0.99": 5.876804288e+06,
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"count": 9.0,
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"sum": 1.8909097205e+07,
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}, metrics[0].Fields())
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require.Equal(t, map[string]string{"handler": "prometheus"}, metrics[0].Tags())
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// histogram data
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metrics, err = Parse([]byte(validUniqueHistogram), http.Header{}, false)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "apiserver_request_latencies", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"500000": 2000.0,
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"count": 2025.0,
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"sum": 1.02726334e+08,
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"250000": 1997.0,
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"2e+06": 2012.0,
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"4e+06": 2017.0,
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"8e+06": 2024.0,
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"+Inf": 2025.0,
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"125000": 1994.0,
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"1e+06": 2005.0,
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}, metrics[0].Fields())
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require.Equal(t,
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map[string]string{"verb": "POST", "resource": "bindings"},
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metrics[0].Tags())
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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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// IgnoreTimestamp is false
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metrics, err := Parse([]byte(metricsWithTimestamps), http.Header{}, false)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "test_counter", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"counter": float64(1),
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}, metrics[0].Fields())
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require.Equal(t, map[string]string{
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"label": "test",
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}, metrics[0].Tags())
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require.Equal(t, testTime, metrics[0].Time().UTC())
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// IgnoreTimestamp is true
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metrics, err = Parse([]byte(metricsWithTimestamps), http.Header{}, true)
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require.NoError(t, err)
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require.Len(t, metrics, 1)
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require.Equal(t, "test_counter", metrics[0].Name())
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require.Equal(t, map[string]interface{}{
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"counter": float64(1),
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}, metrics[0].Fields())
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require.Equal(t, map[string]string{
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"label": "test",
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}, metrics[0].Tags())
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require.WithinDuration(t, time.Now(), metrics[0].Time().UTC(), 5*time.Second)
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}
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