prysm-pulse/monitoring/prometheus/logrus_collector_test.go
terence 5a66807989
Update to V5 (#13622)
* First take at updating everything to v5

* Patch gRPC gateway to use prysm v5

Fix patch

* Update go ssz

---------

Co-authored-by: Preston Van Loon <pvanloon@offchainlabs.com>
2024-02-15 05:46:47 +00:00

109 lines
2.8 KiB
Go

package prometheus_test
import (
"fmt"
"io"
"net/http"
"strconv"
"strings"
"testing"
"time"
"github.com/prysmaticlabs/prysm/v5/monitoring/prometheus"
"github.com/prysmaticlabs/prysm/v5/testing/assert"
"github.com/prysmaticlabs/prysm/v5/testing/require"
log "github.com/sirupsen/logrus"
)
const addr = "127.0.0.1:8989"
type logger interface {
Info(args ...interface{})
Warn(args ...interface{})
Error(args ...interface{})
}
func TestLogrusCollector(t *testing.T) {
service := prometheus.NewService(addr, nil)
hook := prometheus.NewLogrusCollector()
log.AddHook(hook)
go service.Start()
defer func() {
err := service.Stop()
require.NoError(t, err)
}()
tests := []struct {
name string
want int
count int
prefix string
level log.Level
}{
{"info message with empty prefix", 3, 3, "", log.InfoLevel},
{"warn message with empty prefix", 2, 2, "", log.WarnLevel},
{"error message with empty prefix", 1, 1, "", log.ErrorLevel},
{"error message with prefix", 1, 1, "foo", log.ErrorLevel},
{"info message with prefix", 3, 3, "foo", log.InfoLevel},
{"warn message with prefix", 2, 2, "foo", log.WarnLevel},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
prefix := "global"
for i := 0; i < tt.count; i++ {
if tt.prefix != "" {
prefix = tt.prefix
subLog := log.WithField("prefix", tt.prefix)
logExampleMessage(subLog, tt.level)
continue
}
logExampleMessage(log.StandardLogger(), tt.level)
}
time.Sleep(time.Millisecond)
metrics := metrics(t)
count := valueFor(t, metrics, prefix, tt.level)
if count != tt.want {
t.Errorf("Expecting %d and receive %d", tt.want, count)
}
})
}
}
func metrics(t *testing.T) []string {
resp, err := http.Get(fmt.Sprintf("http://%s/metrics", addr))
require.NoError(t, err)
body, err := io.ReadAll(resp.Body)
require.NoError(t, err)
return strings.Split(string(body), "\n")
}
func valueFor(t *testing.T, metrics []string, prefix string, level log.Level) int {
// Expect line with this pattern:
// # HELP log_entries_total Total number of log messages.
// # TYPE log_entries_total counter
// log_entries_total{level="error",prefix="empty"} 1
pattern := fmt.Sprintf("log_entries_total{level=\"%s\",prefix=\"%s\"}", level, prefix)
for _, line := range metrics {
if strings.HasPrefix(line, pattern) {
parts := strings.Split(line, " ")
count, err := strconv.ParseFloat(parts[1], 64)
assert.NoError(t, err)
return int(count)
}
}
t.Errorf("Pattern \"%s\" not found", pattern)
return 0
}
func logExampleMessage(logger logger, level log.Level) {
switch level {
case log.InfoLevel:
logger.Info("Info message")
case log.WarnLevel:
logger.Warn("Warning message!")
case log.ErrorLevel:
logger.Error("Error message!!")
}
}