03bca7b791
Co-authored-by: cool-developer <51834436+cool-develope@users.noreply.github.com> Co-authored-by: yihuang <huang@crypto.com>
90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package sqlite
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/stretchr/testify/suite"
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"cosmossdk.io/store/v2"
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"cosmossdk.io/store/v2/storage"
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)
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const (
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storeKey1 = "store1"
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)
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func TestStorageTestSuite(t *testing.T) {
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s := &storage.StorageTestSuite{
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NewDB: func(dir string) (store.VersionedDatabase, error) {
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return New(dir)
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},
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EmptyBatchSize: 0,
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}
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suite.Run(t, s)
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}
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func TestDatabase_ReverseIterator(t *testing.T) {
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db, err := New(t.TempDir())
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require.NoError(t, err)
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defer db.Close()
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cs := new(store.Changeset)
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for i := 0; i < 100; i++ {
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key := fmt.Sprintf("key%03d", i) // key000, key001, ..., key099
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val := fmt.Sprintf("val%03d", i) // val000, val001, ..., val099
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cs.AddKVPair(store.KVPair{StoreKey: storeKey1, Key: []byte(key), Value: []byte(val)})
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}
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require.NoError(t, db.ApplyChangeset(1, cs))
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// reverse iterator without an end key
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iter, err := db.ReverseIterator(storeKey1, 1, []byte("key000"), nil)
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require.NoError(t, err)
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defer iter.Close()
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i, count := 99, 0
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for ; iter.Valid(); iter.Next() {
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require.Equal(t, []byte(fmt.Sprintf("key%03d", i)), iter.Key())
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require.Equal(t, []byte(fmt.Sprintf("val%03d", i)), iter.Value())
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i--
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count++
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}
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require.Equal(t, 100, count)
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require.NoError(t, iter.Error())
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// seek past domain, which should make the iterator invalid and produce an error
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require.False(t, iter.Next())
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require.False(t, iter.Valid())
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// reverse iterator with with a start and end domain
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iter2, err := db.ReverseIterator(storeKey1, 1, []byte("key010"), []byte("key019"))
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require.NoError(t, err)
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defer iter2.Close()
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i, count = 18, 0
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for ; iter2.Valid(); iter2.Next() {
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require.Equal(t, []byte(fmt.Sprintf("key%03d", i)), iter2.Key())
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require.Equal(t, []byte(fmt.Sprintf("val%03d", i)), iter2.Value())
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i--
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count++
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}
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require.Equal(t, 9, count)
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require.NoError(t, iter2.Error())
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// seek past domain, which should make the iterator invalid and produce an error
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require.False(t, iter2.Next())
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require.False(t, iter2.Valid())
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// start must be <= end
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iter3, err := db.ReverseIterator(storeKey1, 1, []byte("key020"), []byte("key019"))
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require.Error(t, err)
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require.Nil(t, iter3)
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}
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