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Jae/fixprefixdb (#199)

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* Fix PrefixDB Iterator
* PrefixDB Iterator/ReverseIterator fixes
* Bump version 0.8.2
* Update CHANGELOG.md about DebugDB
* Keep invalid source to be closed
* Use prefixBatch instead of memBatch
This commit is contained in:
Jae Kwon
2018-04-21 04:25:45 -07:00
committed by GitHub
parent 357648b8d6
commit e328006bfe
11 changed files with 360 additions and 103 deletions
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111
db/prefix_db_test.go
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@ -2,7 +2,7 @@ package db
import "testing"
func TestIteratePrefix(t *testing.T) {
func mockDBWithStuff() DB {
db := NewMemDB()
// Under "key" prefix
db.Set(bz("key"), bz("value"))
@ -14,10 +14,13 @@ func TestIteratePrefix(t *testing.T) {
db.Set(bz("k"), bz("val"))
db.Set(bz("ke"), bz("valu"))
db.Set(bz("kee"), bz("valuu"))
xitr := db.Iterator(nil, nil)
xitr.Key()
return db
}
func TestPrefixDBSimple(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
checkValue(t, pdb, bz("key"), nil)
checkValue(t, pdb, bz(""), bz("value"))
checkValue(t, pdb, bz("key1"), nil)
@ -30,9 +33,14 @@ func TestIteratePrefix(t *testing.T) {
checkValue(t, pdb, bz("k"), nil)
checkValue(t, pdb, bz("ke"), nil)
checkValue(t, pdb, bz("kee"), nil)
}
func TestPrefixDBIterator1(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.Iterator(nil, nil)
itr.Key()
checkDomain(t, itr, nil, nil)
checkItem(t, itr, bz(""), bz("value"))
checkNext(t, itr, true)
checkItem(t, itr, bz("1"), bz("value1"))
@ -40,5 +48,100 @@ func TestIteratePrefix(t *testing.T) {
checkItem(t, itr, bz("2"), bz("value2"))
checkNext(t, itr, true)
checkItem(t, itr, bz("3"), bz("value3"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBIterator2(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.Iterator(nil, bz(""))
checkDomain(t, itr, nil, bz(""))
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBIterator3(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.Iterator(bz(""), nil)
checkDomain(t, itr, bz(""), nil)
checkItem(t, itr, bz(""), bz("value"))
checkNext(t, itr, true)
checkItem(t, itr, bz("1"), bz("value1"))
checkNext(t, itr, true)
checkItem(t, itr, bz("2"), bz("value2"))
checkNext(t, itr, true)
checkItem(t, itr, bz("3"), bz("value3"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBIterator4(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.Iterator(bz(""), bz(""))
checkDomain(t, itr, bz(""), bz(""))
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator1(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.ReverseIterator(nil, nil)
checkDomain(t, itr, nil, nil)
checkItem(t, itr, bz("3"), bz("value3"))
checkNext(t, itr, true)
checkItem(t, itr, bz("2"), bz("value2"))
checkNext(t, itr, true)
checkItem(t, itr, bz("1"), bz("value1"))
checkNext(t, itr, true)
checkItem(t, itr, bz(""), bz("value"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator2(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.ReverseIterator(nil, bz(""))
checkDomain(t, itr, nil, bz(""))
checkItem(t, itr, bz("3"), bz("value3"))
checkNext(t, itr, true)
checkItem(t, itr, bz("2"), bz("value2"))
checkNext(t, itr, true)
checkItem(t, itr, bz("1"), bz("value1"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator3(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.ReverseIterator(bz(""), nil)
checkDomain(t, itr, bz(""), nil)
checkItem(t, itr, bz(""), bz("value"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator4(t *testing.T) {
db := mockDBWithStuff()
pdb := NewPrefixDB(db, bz("key"))
itr := pdb.ReverseIterator(bz(""), bz(""))
checkInvalid(t, itr)
itr.Close()
}