Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

logger/logger_test.go

@@ -0,0 +1,39 @@
+package logger
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/influxdata/telegraf/selfstat"
+)
+
+func TestTextLogTargetDefault(t *testing.T) {
+	instance = defaultHandler()
+	cfg := &Config{
+		Quiet: true,
+	}
+	require.NoError(t, SetupLogging(cfg))
+	defer func() { require.NoError(t, CloseLogging()) }()
+
+	logger, ok := instance.impl.(*textLogger)
+	require.Truef(t, ok, "logging instance is not a default-logger but %T", instance.impl)
+	require.Equal(t, logger.logger.Writer(), os.Stderr)
+}
+
+func TestErrorCounting(t *testing.T) {
+	reg := selfstat.Register(
+		"gather",
+		"errors",
+		map[string]string{"input": "test"},
+	)
+	iLog := New("inputs", "test", "")
+	iLog.RegisterErrorCallback(func() {
+		reg.Incr(1)
+	})
+	iLog.Error("something went wrong")
+	iLog.Errorf("something went wrong")
+
+	require.Equal(t, int64(2), reg.Get())
+}