promhelp

func Compare ¶

func Compare(reg prometheus.Gatherer, compare string, metricNames ...string) error

Compare can be used to compare a registry to some prometheus formatted text. If any values differ, an error is returned. If metric names are passed in, only those metrics will be compared. Usage: `Compare(reg, RegistryDump(reg))`

func CounterValue ¶

func CounterValue(t testing.TB, reg prometheus.Gatherer, metricName string, labels prometheus.Labels) int

CounterValue returns the value of a counter metric with the given name and labels.

func GaugeValue ¶

func GaugeValue(t testing.TB, reg prometheus.Gatherer, metricName string, labels prometheus.Labels) int

GaugeValue returns the value of a gauge metric with the given name and labels.

func HistogramValue ¶

func HistogramValue(t testing.TB, reg prometheus.Gatherer, metricName string, labels prometheus.Labels) *io_prometheus_client.Histogram

HistogramValue returns the value of a histogram metric with the given name and labels.

func MetricValue ¶

func MetricValue(t testing.TB, reg prometheus.Gatherer, metricName string, labels prometheus.Labels) *io_prometheus_client.Metric

func RegistryDump ¶

func RegistryDump(reg *prometheus.Registry) string

RegistryDump returns the http page for a given registry's metrics. Very useful for visual debugging.