add tests for file log functions

Author: pashagolub

internal/log/log_file_test.go

@@ -0,0 +1,21 @@
+package log
+
+import (
+	"testing"
+
+	"github.com/cybertec-postgresql/pg_timetable/internal/config"
+	"github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+func TestGetLogFileWriter(t *testing.T) {
+	assert.IsType(t, getLogFileWriter(config.LoggingOpts{LogFileRotate: true}), &lumberjack.Logger{})
+	assert.IsType(t, getLogFileWriter(config.LoggingOpts{LogFileRotate: false}), "string")
+}
+
+func TestGetLogFileFormatter(t *testing.T) {
+	assert.IsType(t, getLogFileFormatter(config.LoggingOpts{LogFileFormat: "json"}), &logrus.JSONFormatter{})
+	assert.IsType(t, getLogFileFormatter(config.LoggingOpts{LogFileFormat: "blah"}), &logrus.JSONFormatter{})
+	assert.IsType(t, getLogFileFormatter(config.LoggingOpts{LogFileFormat: "text"}), &logrus.TextFormatter{})
+}