open-consul/lib/telemetry_test.go

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package lib
import (
"errors"
"net"
"os"
"testing"
"github.com/hashicorp/consul/logging"
"github.com/hashicorp/go-multierror"
"github.com/stretchr/testify/require"
)
func newCfg() TelemetryConfig {
return TelemetryConfig{
StatsdAddr: "statsd.host:1234",
StatsiteAddr: "statsite.host:1234",
DogstatsdAddr: "mydog.host:8125",
}
}
func TestConfigureSinks(t *testing.T) {
cfg := newCfg()
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sinks, err := configureSinks(cfg, nil)
require.Error(t, err)
// 3 sinks: statsd, statsite, inmem
require.Equal(t, 3, len(sinks))
cfg = TelemetryConfig{
DogstatsdAddr: "",
}
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_, err = configureSinks(cfg, nil)
require.NoError(t, err)
}
func TestIsRetriableError(t *testing.T) {
var err error
err = multierror.Append(err, errors.New("an error"))
r := isRetriableError(err)
require.False(t, r)
err = multierror.Append(err, &net.DNSError{
IsNotFound: true,
})
r = isRetriableError(err)
require.True(t, r)
}
func TestInitTelemetryRetrySuccess(t *testing.T) {
logger, err := logging.Setup(logging.Config{
LogLevel: "INFO",
}, os.Stdout)
require.NoError(t, err)
cfg := newCfg()
_, err = InitTelemetry(cfg, logger)
require.Error(t, err)
cfg.RetryFailedConfiguration = true
metricsCfg, err := InitTelemetry(cfg, logger)
require.NoError(t, err)
// TODO: we couldn't extract the metrics sinks from the
// global metrics due to it's limitation
// fanoutSink := metrics.Default()}
metricsCfg.cancelFn()
}