77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
package telemetry
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import (
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"encoding/json"
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"strings"
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"testing"
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"time"
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metrics "github.com/armon/go-metrics"
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"github.com/prometheus/common/expfmt"
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"github.com/stretchr/testify/require"
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)
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func TestMetrics_Disabled(t *testing.T) {
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m, err := New(Config{Enabled: false})
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require.Nil(t, m)
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require.Nil(t, err)
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}
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func TestMetrics_InMem(t *testing.T) {
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m, err := New(Config{
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Enabled: true,
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EnableHostname: false,
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ServiceName: "test",
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})
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require.NoError(t, err)
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require.NotNil(t, m)
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emitMetrics()
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gr, err := m.Gather(FormatText)
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require.NoError(t, err)
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require.Equal(t, gr.ContentType, "application/json")
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jsonMetrics := make(map[string]interface{})
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require.NoError(t, json.Unmarshal(gr.Metrics, &jsonMetrics))
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counters := jsonMetrics["Counters"].([]interface{})
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require.Equal(t, counters[0].(map[string]interface{})["Count"].(float64), 10.0)
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require.Equal(t, counters[0].(map[string]interface{})["Name"].(string), "test.dummy_counter")
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}
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func TestMetrics_Prom(t *testing.T) {
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m, err := New(Config{
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Enabled: true,
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EnableHostname: false,
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ServiceName: "test",
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PrometheusRetentionTime: 60,
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EnableHostnameLabel: false,
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})
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require.NoError(t, err)
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require.NotNil(t, m)
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require.True(t, m.prometheusEnabled)
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emitMetrics()
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gr, err := m.Gather(FormatPrometheus)
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require.NoError(t, err)
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require.Equal(t, gr.ContentType, string(expfmt.FmtText))
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require.True(t, strings.Contains(string(gr.Metrics), "test_dummy_counter 30"))
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}
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func emitMetrics() {
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ticker := time.NewTicker(time.Second)
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timeout := time.After(30 * time.Second)
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for {
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select {
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case <-ticker.C:
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metrics.IncrCounter([]string{"dummy_counter"}, 1.0)
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case <-timeout:
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return
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}
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}
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}
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