package formatter import ( "testing" "time" "github.com/sirupsen/logrus" "github.com/stretchr/testify/assert" ) func TestLogMessageFormat(t *testing.T) { someEntry := &logrus.Entry{ Data: logrus.Fields{"att1": 1, "att2": 2, "source": "some/fancy/path.go:46"}, Time: time.Date(2021, time.Month(2), 21, 1, 10, 30, 0, time.UTC), Level: 3, Message: "Some Message", } formatter := NewTextFormatter() result, _ := formatter.Format(someEntry) parsedString := string(result) expectedString := "^2021-02-21T01:10:30Z WARN \\[(att1: 1, att2: 2|att2: 2, att1: 1)\\] some/fancy/path.go:46: Some Message\\s+$" assert.Regexp(t, expectedString, parsedString) }