log_test.go

package go_bagit_test

import (
	"bytes"
	stdlog "log"
	"testing"

	go_bagit "github.com/nyudlts/go-bagit"
)

func TestWithLogger(t *testing.T) {
	t.Run("It panics when a nil value is passed", func(t *testing.T) {
		defer func() {
			if r := recover(); r == nil {
				t.Fatal("WithLogger did not panic")
			}
		}()

		go_bagit.WithLogger(nil)
	})

	t.Run("It replaces the library logger", func(t *testing.T) {
		var buf bytes.Buffer
		tlog := stdlog.New(&buf, "", stdlog.LstdFlags)

		go_bagit.WithLogger(tlog)

		_, err := go_bagit.GetExistingBag("/dev/null")
		if err == nil {
			t.Error(err)
		}

		/*
			_ = b.ValidateBag(false, false)
			want := []byte("ERROR - open /dev/null/bag-info.txt: not a directory")
			if !bytes.Contains(buf.Bytes(), want) {
				t.Fatal("WithLogger did not replace the library logger")
			}
		*/
	})
}

func TestLogger(t *testing.T) {
	t.Run("It returns the current logger", func(t *testing.T) {
		go_bagit.WithLogger(stdlog.Default())

		logger := go_bagit.Logger()

		if logger != stdlog.Default() {
			t.Fatal("Logger returned an expected value")
		}
	})
}