func TestCheckForHostnameError(t *testing.T) {
	tests := []struct {
		name            string
		serverCert      []byte
		counterIncrease bool
	}{
		{
			name:            "no SAN",
			serverCert:      serverCertNoSAN,
			counterIncrease: true,
		},
		{
			name:       "with SAN",
			serverCert: serverCert,
		},
	}

	// register the test metrics