func Test_countCSRDurationMetric(t *testing.T) { … } func createCert(t *testing.T, duration time.Duration, caPrivateKey *ecdsa.PrivateKey, caCert *x509.Certificate) []byte { … } type testCounterVecMetric … func (m *testCounterVecMetric) WithLabelValues(lv ...string) metrics.CounterMetric { … } func (m *testCounterVecMetric) Inc() { … }