tail_group_test.go

package dendrite

import (
	"os"
	"path/filepath"
	"testing"
	"time"
)

var config *SourceConfig = nil
var group *TailGroup = nil

var _tg_init = func() {
	config = new(SourceConfig)
	config.Glob = filepath.Join(".", "testdata", "solr*txt")
	_ = os.RemoveAll(filepath.Join("testdata", "solrN.txt"))
	config.Pattern = "(?P<line>.+)\n"
	config.OffsetDir = "tmp"
	_ = os.RemoveAll(config.OffsetDir)
	os.Mkdir(config.OffsetDir, 0777)
	output = make(chan Record, 100000)
	matches, _ := filepath.Glob(config.Glob)
	for _, m := range matches {
		os.Chtimes(m, time.Now(), time.Now())
	}
	group = NewTailGroup(*config, output)
}

func TestGroupHasTails(t *testing.T) {
	_tg_init()
	n := len(group.Tails)
	if n != 2 {
		t.Errorf("group has %d tails", n)
	}
}

func TestRefreshPicksUpFiles(t *testing.T) {
	_tg_init()
	solrN := filepath.Join("testdata", "solrN.txt")
	n := len(group.Tails)
	if n != 2 {
		t.Errorf("group has %d tails", n)
	}
	if tmp, err := os.Create(solrN); err != nil {
		t.Error(err)
	} else {
		tmp.Close()
		defer os.RemoveAll(solrN)
	}
	group.Refresh()
	n = len(group.Tails)
	if n != 3 {
		t.Errorf("group has %d tails", n)
	}
}

func TestGroupCanPoll(t *testing.T) {
	_tg_init()
	group.Poll()
}