test(config,git,logger): add some test functions

internal/logger/logger_test.go

@@ -0,0 +1,49 @@
+package logger_test
+
+import (
+	"bytes"
+	"testing"
+
+	"git.ar21.de/yolokube/grafana-backuper/internal/logger"
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCliLoggerLayout_DebugLevel(t *testing.T) {
+	var buf bytes.Buffer
+	zerolog.SetGlobalLevel(zerolog.DebugLevel)
+
+	log := logger.CliLoggerLayout(&buf)
+	log.Debug().Msg("test message")
+
+	output := buf.String()
+	assert.Contains(t, output, "test message")
+	assert.Contains(t, output, "DBG")  // Assuming zerolog adds a short level indicator like "DBG"
+	assert.Contains(t, output, ".go:") // Ensures the caller file and line are included
+}
+
+func TestCliLoggerLayout_NonDebugLevel(t *testing.T) {
+	var buf bytes.Buffer
+	zerolog.SetGlobalLevel(zerolog.InfoLevel)
+
+	log := logger.CliLoggerLayout(&buf)
+	log.Info().Msg("test message")
+
+	output := buf.String()
+	assert.Contains(t, output, "test message")
+	assert.NotContains(t, output, "DBG")  // Since we're at Info level
+	assert.NotContains(t, output, ".go:") // Caller information should not be included
+}
+
+func TestJSONLoggerLayout(t *testing.T) {
+	var buf bytes.Buffer
+
+	log := logger.JSONLoggerLayout(&buf)
+	log.Info().Msg("test message")
+
+	output := buf.String()
+	assert.Contains(t, output, `"message":"test message"`)
+	assert.Contains(t, output, `"level":"info"`)
+	assert.Contains(t, output, `"time":`)   // Timestamp should be included
+	assert.Contains(t, output, `"caller":`) // Caller should be included
+}