package logutils import ( "bytes" "testing" "github.com/stretchr/testify/require" "go.uber.org/zap/zapcore" ) func TestPrintOrigins(t *testing.T) { buffer := bytes.NewBuffer(nil) logger := defaultLogger() logger.Core().(*Core).UpdateSyncer(zapcore.AddSync(buffer)) logger.Info("hello") require.Contains(t, buffer.String(), "logutils/logger_test.go:17") }