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prefixdb_test.go
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prefixdb_test.go
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package db
import (
"testing"
"github.com/stretchr/testify/require"
)
func mockDBWithStuff(t *testing.T) DB {
db := NewMemDB()
// Under "key" prefix
require.NoError(t, db.Set(bz("key"), bz("value")))
require.NoError(t, db.Set(bz("key1"), bz("value1")))
require.NoError(t, db.Set(bz("key2"), bz("value2")))
require.NoError(t, db.Set(bz("key3"), bz("value3")))
require.NoError(t, db.Set(bz("something"), bz("else")))
require.NoError(t, db.Set(bz("k"), bz("val")))
require.NoError(t, db.Set(bz("ke"), bz("valu")))
require.NoError(t, db.Set(bz("kee"), bz("valuu")))
return db
}
func TestPrefixDBSimple(t *testing.T) {
db := mockDBWithStuff(t)
pdb := NewPrefixDB(db, bz("key"))
checkValue(t, pdb, bz("key"), nil)
checkValue(t, pdb, bz("key1"), nil)
checkValue(t, pdb, bz("1"), bz("value1"))
checkValue(t, pdb, bz("key2"), nil)
checkValue(t, pdb, bz("2"), bz("value2"))
checkValue(t, pdb, bz("key3"), nil)
checkValue(t, pdb, bz("3"), bz("value3"))
checkValue(t, pdb, bz("something"), nil)
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(t)
pdb := NewPrefixDB(db, bz("key"))
itr, err := pdb.Iterator(nil, nil)
require.NoError(t, err)
checkDomain(t, itr, nil, nil)
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 TestPrefixDBReverseIterator1(t *testing.T) {
db := mockDBWithStuff(t)
pdb := NewPrefixDB(db, bz("key"))
itr, err := pdb.ReverseIterator(nil, nil)
require.NoError(t, err)
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, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator5(t *testing.T) {
db := mockDBWithStuff(t)
pdb := NewPrefixDB(db, bz("key"))
itr, err := pdb.ReverseIterator(bz("1"), nil)
require.NoError(t, err)
checkDomain(t, itr, bz("1"), 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, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator6(t *testing.T) {
db := mockDBWithStuff(t)
pdb := NewPrefixDB(db, bz("key"))
itr, err := pdb.ReverseIterator(bz("2"), nil)
require.NoError(t, err)
checkDomain(t, itr, bz("2"), nil)
checkItem(t, itr, bz("3"), bz("value3"))
checkNext(t, itr, true)
checkItem(t, itr, bz("2"), bz("value2"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}
func TestPrefixDBReverseIterator7(t *testing.T) {
db := mockDBWithStuff(t)
pdb := NewPrefixDB(db, bz("key"))
itr, err := pdb.ReverseIterator(nil, bz("2"))
require.NoError(t, err)
checkDomain(t, itr, nil, bz("2"))
checkItem(t, itr, bz("1"), bz("value1"))
checkNext(t, itr, false)
checkInvalid(t, itr)
itr.Close()
}