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fdb_test.go
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fdb_test.go
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package tokyocabinet
import "bytes"
import "io/ioutil"
import "os"
import "testing"
func fdb_assertOpen(t *testing.T, filename string, flags int) FDB {
var db FDB = *NewFDB()
if len(filename) == 0 {
tf, err := ioutil.TempFile("", "tctest")
if err != nil {
t.Fatalf("Unable to create temporary file: %s", err)
}
filename = tf.Name()
}
err := db.Open(filename, flags)
os.Remove(filename)
if err != nil {
t.Fatalf("Unable to open %s: %s", filename, err)
}
return db
}
func fdb_assertClose(t *testing.T, db FDB) {
err := db.Close()
if err != nil {
t.Fatalf("Unable to close database: %s", err)
}
}
func fdb_assertPut(t *testing.T, db FDB, key int64, value string) {
err := db.Put(key, []byte(value))
if err != nil {
t.Fatalf("Unable to assign key %d with value %s: %s", key, value, err)
}
}
func fdb_assertPutCat(t *testing.T, db FDB, key int64, value string) {
err := db.PutCat(key, []byte(value))
if err != nil {
t.Fatalf("Unable to assign key %d with value %s: %s", key, value, err)
}
}
func fdb_assertPutKeep(t *testing.T, db FDB, key int64, value string) {
err := db.PutKeep(key, []byte(value))
if err != nil {
t.Fatalf("Unable to assign key %d with value %s: %s", key, value, err)
}
}
func fdb_assertGetValue(t *testing.T, db FDB, key int64, expected string) {
value, err := db.Get(key)
if err != nil {
t.Fatalf("Unable to retrieve value for key %d: %s", key, err)
}
if bytes.Compare([]byte(expected), value) != 0 {
t.Fatalf("Value for key %d came back incorrect (expected: %s; got: %s)", key, []byte(expected), value)
}
}
func fdb_assertGetSize(t *testing.T, db FDB, key int64) (size int) {
size, err := db.Size(key)
if err != nil {
t.Fatalf("Unable to retrieve size of key %d: %s", key, err)
}
return
}
func fdb_assertSync(t *testing.T, db FDB) {
err := db.Sync()
if err != nil {
t.Fatalf("Unable to sync database: %s", err)
}
}
func fdb_assertAddInt(t *testing.T, db FDB, key int64, increment int, desiredNewValue int) {
newValue, err := db.AddInt(key, increment)
if err != nil {
t.Fatalf("Unable to add integer to key: %s", err)
}
if newValue != desiredNewValue {
t.Fatalf("Unexpected value for %d: desired %d, got %d", key, newValue, desiredNewValue)
}
}
func fdb_assertAddDouble(t *testing.T, db FDB, key int64, increment float64, desiredNewValue float64) {
newValue, err := db.AddDouble(key, increment)
if err != nil {
t.Fatalf("Unable to add integer to key: %s", err)
}
if newValue != desiredNewValue {
t.Fatalf("Unexpected value for %d: desired %f, got %f", key, newValue, desiredNewValue)
}
}
func fdb_assertIterKeySet(t *testing.T, db FDB, expectedKeys []int64) {
seenKeys := make(map[int64]bool)
result_chan, err_chan := db.IterKeys()
for {
if result_chan == nil && err_chan == nil {
break
}
select {
case err, ok := <-err_chan:
if ok == false {
err_chan = nil
} else {
t.Fatalf("Error while iterating over keys: %s", err)
}
case result, ok := <-result_chan:
if ok == false {
result_chan = nil
} else {
seenKeys[result] = true
}
}
}
if len(seenKeys) != len(expectedKeys) {
t.Fatalf("Expected %d keys, found %d during iteration", len(expectedKeys), len(seenKeys))
}
for i := 0; i < len(expectedKeys); i++ {
if !seenKeys[expectedKeys[i]] {
t.Fatalf("Did not see expected key %s during iteration", expectedKeys[i])
}
}
}
func fdb_assertBeginTxn(t *testing.T, db FDB) {
err := db.BeginTxn()
if err != nil {
t.Fatalf("Unable to begin transaction: %s", err)
}
}
func fdb_assertCommitTxn(t *testing.T, db FDB) {
err := db.CommitTxn()
if err != nil {
t.Fatalf("Unable to commit transaction: %s", err)
}
}
func fdb_assertAbortTxn(t *testing.T, db FDB) {
err := db.AbortTxn()
if err != nil {
t.Fatalf("Unable to abort transaction: %s", err)
}
}
func TestFDBMath(t *testing.T) {
db := fdb_assertOpen(t, "testmath.hdb", FDBOWRITER|FDBOCREAT|FDBOTRUNC)
defer fdb_assertClose(t, db)
fdb_assertAddInt(t, db, 1, 1, 1)
fdb_assertAddInt(t, db, 1, 1, 2)
fdb_assertAddDouble(t, db, 2, 2.5, 2.5)
fdb_assertAddDouble(t, db, 2, 2.5, 5.0)
}
func TestFDBIter(t *testing.T) {
db := fdb_assertOpen(t, "testiter.hdb", FDBOWRITER|FDBOCREAT|FDBOTRUNC)
defer fdb_assertClose(t, db)
fdb_assertPut(t, db, 1, "hello")
fdb_assertPut(t, db, 2, "goodbye")
fdb_assertIterKeySet(t, db, []int64{1, 2})
}
func TestFDBPut(t *testing.T) {
db := fdb_assertOpen(t, "testput.hdb", FDBOWRITER|FDBOCREAT|FDBOTRUNC)
defer fdb_assertClose(t, db)
// Put, PutCat
fdb_assertPut(t, db, 1, "world")
fdb_assertGetValue(t, db, 1, "world")
fdb_assertPutCat(t, db, 1, "!")
fdb_assertGetValue(t, db, 1, "world!")
// PutKeep
fdb_assertPutKeep(t, db, 2, "first")
fdb_assertPutKeep(t, db, 2, "second")
fdb_assertGetValue(t, db, 2, "first")
}
func TestFDBTransactions(t *testing.T) {
db := fdb_assertOpen(t, "testtxn.hdb", FDBOWRITER|FDBOCREAT|FDBOTRUNC)
defer fdb_assertClose(t, db)
fdb_assertPut(t, db, 1, "set-outside-txn")
fdb_assertBeginTxn(t, db)
fdb_assertPut(t, db, 1, "set-inside-txn")
fdb_assertAbortTxn(t, db)
fdb_assertGetValue(t, db, 1, "set-outside-txn")
fdb_assertPut(t, db, 2, "set-outside-txn")
fdb_assertBeginTxn(t, db)
fdb_assertPut(t, db, 2, "set-inside-txn")
fdb_assertCommitTxn(t, db)
fdb_assertGetValue(t, db, 2, "set-inside-txn")
}