/
db_test.go
92 lines (77 loc) · 1.6 KB
/
db_test.go
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package main
import (
"github.com/bmizerany/assert"
"github.com/jmhodges/levigo"
"github.com/mynameisfiber/gocountme/kminvalues"
"log"
"math/rand"
"testing"
)
func GetRandHash() uint64 {
hash := uint64(rand.Int63())
if rand.Intn(2) == 0 {
hash += 1 << 63
}
return hash
}
func TestDB(t *testing.T) {
SetupDB()
defer CloseDB()
key := "_GOTEST_TESTDB"
resultChan := make(chan Result)
clean := func() {
delRequest := DeleteRequest{
Key: key,
ResultChan: resultChan,
}
requestChan <- delRequest
<-resultChan
}
clean()
defer clean()
kmv := kminvalues.NewKMinValues(50)
for i := 0; i < 100; i++ {
kmv.AddHash(GetRandHash())
}
origCard := kmv.Cardinality()
setRequest := SetRequest{
Key: key,
Kmv: kmv,
ResultChan: resultChan,
}
requestChan <- setRequest
result := <-resultChan
assert.Equal(t, result.Error, nil)
for i := 0; i < 50; i++ {
addHashRequest := AddHashRequest{
Key: key,
Hash: GetRandHash(),
ResultChan: resultChan,
}
requestChan <- addHashRequest
result = <-resultChan
assert.Equal(t, result.Error, nil)
}
newKmv := result.Data
if newKmv.Cardinality() <= origCard {
t.Errorf("Cardinality did not increase after 'AddHashRequest' operations")
t.FailNow()
}
}
func SetupDB() {
opts := levigo.NewOptions()
opts.SetCache(levigo.NewLRUCache(1024))
opts.SetCreateIfMissing(true)
db, err := levigo.Open("./db/tmp", opts)
if err != nil {
log.Panicln(err)
}
requestChan = make(chan RequestCommand)
go func() {
levelDBWorker(db, requestChan)
db.Close()
}()
}
func CloseDB() {
close(requestChan)
}