common

package
v1.13.2 Latest Latest
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 Go to latest Published: Feb 23, 2026 License: Apache-2.0 Imports: 14 Imported by: 0

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Index

Constants

View Source 
const (
	DefaultRetryInterval = 100 * time.Millisecond
	DefaultTimeout       = 90 * time.Second
)

Variables

View Source 
var (
	// Environment variables which carry information about the alloy container under test are prefixed with ALLOY_
	AlloyStartTimeEnv = "ALLOY_START_TIME_UNIX"

	// Environment variables which adjust the test behavior are prefixed with TEST_
	TestStatefulEnv = "TEST_STATEFUL"
	TestTimeout     = "TEST_TIMEOUT"
)
View Source 
var OtelDefaultHistogramMetrics = []string{
	"example_exponential_histogram",
	"example_exponential_float_histogram",
}

Default histogram metrics list according to what the otel-gen app is generating.

View Source 
var OtelDefaultMetrics = []string{
	"example_counter",
	"example_float_counter",
	"example_updowncounter",
	"example_float_updowncounter",
	"example_histogram_bucket",
	"example_float_histogram_bucket",
}

Default metrics list according to what the otel-gen app is generating.

View Source 
var PromDefaultMetricMetadata = map[string]Metadata{
	"golang_counter":         {Type: "counter", Help: "The counter description string"},
	"golang_gauge":           {Type: "gauge", Help: "The gauge description string"},
	"golang_histogram":       {Type: "histogram", Help: "The histogram description string"},
	"golang_mixed_histogram": {Type: "histogram", Help: "The mixed_histogram description string"},
	"golang_summary":         {Type: "summary", Help: "The summary description string"},
}

Default metrics metadata that the prometheus.remote_write and otelcol.exporter.otlphttp components create in Mimir.

View Source 
var PromDefaultMetrics = []string{
	"golang_counter",
	"golang_gauge",
	"golang_histogram_bucket",
	"golang_histogram_count",
	"golang_histogram_sum",
	"golang_mixed_histogram_bucket",
	"golang_mixed_histogram_count",
	"golang_mixed_histogram_sum",
	"golang_summary",
}

Default metrics list according to what the prom-gen app is generating.

View Source 
var PromDefaultNativeHistogramMetadata = map[string]Metadata{
	"golang_native_histogram": {Type: "histogram", Help: "The native_histogram description string"},
	"golang_mixed_histogram":  {Type: "histogram", Help: "The mixed_histogram description string"},
}

Default native histogram metadata

View Source 
var PromDefaultNativeHistogramMetrics = []string{
	"golang_native_histogram",
	"golang_mixed_histogram",
}

Default native histogram metrics list according to what the prom-gen app is generating.

View Source 
var WriteQueueDefaultMetricMetadata = map[string]Metadata{
	"golang_counter":                {Type: "counter", Help: "The counter description string"},
	"golang_gauge":                  {Type: "gauge", Help: "The gauge description string"},
	"golang_histogram_bucket":       {Type: "histogram", Help: "The histogram description string"},
	"golang_histogram_count":        {Type: "histogram", Help: "The histogram description string"},
	"golang_histogram_sum":          {Type: "histogram", Help: "The histogram description string"},
	"golang_mixed_histogram_bucket": {Type: "histogram", Help: "The mixed_histogram description string"},
	"golang_mixed_histogram_count":  {Type: "histogram", Help: "The mixed_histogram description string"},
	"golang_mixed_histogram_sum":    {Type: "histogram", Help: "The mixed_histogram description string"},
	"golang_summary":                {Type: "summary", Help: "The summary description string"},
}

Default metrics metadata that the prometheus.write_queue component creates in Mimir. For some reason it causes _bucket, _count, and _sum metrics to be visible on Mimir's /metadata endpoint. This is not normal. When Prometheus or Alloy's prometheus.remote_write components send metrics to Mimir, only the metric family is visible on Mimir's /metadata endpoint. TODO: Look into why the write_queue components causes Mimir to behave this way.

Functions

func AlloyStartTimeUnix 

func AlloyStartTimeUnix() int64

AlloyStartTimeUnix pulls the start time from env.

func AlloyStartTimeUnixNano 

func AlloyStartTimeUnixNano() int64

func AssertHistogramData 

func AssertHistogramData(t *testing.T, query string, expectedMetric string, testName string)

AssertHistogramData performs a Prometheus query and expect the result to eventually contain the expected histogram. The count and sum metrics should be greater than 10 before the timeout triggers.

func AssertLogsPresent 

func AssertLogsPresent(t *testing.T, expected ...ExpectedLogResult)

AssertLogsPresent checks that logs are present in Loki and match expected labels

func AssertMetricData 

func AssertMetricData(t *testing.T, query, expectedMetric string, testName string)

AssertMetricData performs a Prometheus query and expect the result to eventually contain the expected metric.

func AssertMetricsAvailable 

func AssertMetricsAvailable(t *testing.T, metrics []string, histogramMetrics []string, testName string)

AssertMetricsAvailable performs a Prometheus query and expect the result to eventually contain the list of expected metrics.

func AssertStatefulTestEnv 

func AssertStatefulTestEnv(t *testing.T)

AssertStatefulTestEnv verifies the environment is properly configured if the test is supposed to be stateful

func AssertTracesAvailable 

func AssertTracesAvailable(t *testing.T, tags map[string]string)

AssertTracesAvailable performs a Tempo search query and expects to eventually find traces with the given tags

func FetchDataFromURL 

func FetchDataFromURL(url string, target Unmarshaler) (string, error)

func IsStatefulTest 

func IsStatefulTest() bool

func LogQuery 

func LogQuery(testName string, limit int) string

LogQuery returns a formatted Loki query with the given test_name label

func MetadataQuery 

func MetadataQuery() string

func MetricQuery 

func MetricQuery(metricName string, testName string) string

MetricQuery returns a formatted Prometheus metric query with a given metricName and the given test_name label.

func MetricsQuery 

func MetricsQuery(testName string) string

MetricsQuery returns the list of available metrics matching the given test_name label.

func MimirMetadataTest 

func MimirMetadataTest(t *testing.T, expectedMetadata map[string]Metadata)

func MimirMetricsTest 

func MimirMetricsTest(t *testing.T, metrics []string, histogramMetrics []string, testName string)

MimirMetricsTest checks that all given metrics are stored in Mimir.

func SanitizeTestName 

func SanitizeTestName(t *testing.T) string

func TempoSearchQuery 

func TempoSearchQuery(tags map[string]string) string

TempoSearchQuery builds a Tempo search query URL for traces with given tags

func TestTimeoutEnv 

func TestTimeoutEnv(t *testing.T) time.Duration

func TracesTest 

func TracesTest(t *testing.T, tags map[string]string, testName string)

TracesTest checks that traces with the given tags are stored in Tempo

func WaitForInitalLogs 

func WaitForInitalLogs(testName string) error

WaitForInitalLogs will try to wait until any logs can be retrieved from loki for testName. It will return an error if no logs are found after test timeout.

Types

type Bucket 

type Bucket struct {
	BoundaryRule  float64
	LeftBoundary  string
	RightBoundary string
	CountInBucket string
}

func (*Bucket) UnmarshalJSON 

func (b *Bucket) UnmarshalJSON(data []byte) error

type ExpectedLogResult 

type ExpectedLogResult struct {
	Labels     map[string]string
	EntryCount int
}

type HistogramData 

type HistogramData struct {
	Count   string   `json:"count"`
	Sum     string   `json:"sum"`
	Buckets []Bucket `json:"buckets"`
}

type HistogramRawData 

type HistogramRawData struct {
	Timestamp float64
	Data      HistogramData
}

func (*HistogramRawData) UnmarshalJSON 

func (h *HistogramRawData) UnmarshalJSON(b []byte) error

type LogData 

type LogData struct {
	Stream map[string]string `json:"stream"`
	Values [][2]string       `json:"values"`
}

type LogResponse 

type LogResponse struct {
	Status string `json:"status"`
	Data   struct {
		ResultType string    `json:"resultType"`
		Result     []LogData `json:"result"`
	} `json:"data"`
}

Query response types

func (*LogResponse) Unmarshal 

func (m *LogResponse) Unmarshal(data []byte) error

type Metadata 

type Metadata struct {
	Type string `json:"type"`
	Help string `json:"help"`
	Unit string `json:"unit"`
}

type MetadataResponse 

type MetadataResponse struct {
	Status string                `json:"status"`
	Data   map[string][]Metadata `json:"data"`
}

func GetMetadata 

func GetMetadata() (MetadataResponse, error)

GetMetadata returns all available metric metadata

func (*MetadataResponse) Unmarshal 

func (m *MetadataResponse) Unmarshal(bytes []byte) error

type Metric 

type Metric struct {
	TestName string `json:"test_name"`
	Name     string `json:"__name__"`
}

type MetricData 

type MetricData struct {
	ResultType string         `json:"resultType"`
	Result     []MetricResult `json:"result"`
}

type MetricResponse 

type MetricResponse struct {
	Status string     `json:"status"`
	Data   MetricData `json:"data"`
}

func (*MetricResponse) Unmarshal 

func (m *MetricResponse) Unmarshal(data []byte) error

type MetricResult 

type MetricResult struct {
	Metric    Metric            `json:"metric"`
	Value     *Value            `json:"value,omitempty"`
	Histogram *HistogramRawData `json:"histogram,omitempty"`
}

type MetricsResponse 

type MetricsResponse struct {
	Status string   `json:"status"`
	Data   []Metric `json:"data"`
}

func (*MetricsResponse) Unmarshal 

func (m *MetricsResponse) Unmarshal(data []byte) error

type PushRequest 

type PushRequest struct {
	Streams []LogData `json:"streams"`
}

Push request types

type TempoTraceSearchResponse 

type TempoTraceSearchResponse struct {
	Traces []TraceInfo `json:"traces"`
}

TempoTraceSearchResponse represents the response from Tempo's trace search API

func (*TempoTraceSearchResponse) Unmarshal 

func (t *TempoTraceSearchResponse) Unmarshal(data []byte) error

type TraceInfo 

type TraceInfo struct {
	TraceID           string            `json:"traceID"`
	RootServiceName   string            `json:"rootServiceName"`
	RootTraceName     string            `json:"rootTraceName"`
	StartTimeUnixNano string            `json:"startTimeUnixNano"`
	DurationMs        float64           `json:"durationMs"`
	SpanSet           map[string]string `json:"spanSet,omitempty"`
}

TraceInfo represents basic trace information from Tempo search

type Unmarshaler 

type Unmarshaler interface {
	Unmarshal([]byte) error
}

type Value 

type Value struct {
	Timestamp int64
	Value     string
}

func (*Value) UnmarshalJSON 

func (v *Value) UnmarshalJSON(b []byte) error

Source Files

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