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package db
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
cmn "github.com/tendermint/tmlibs/common"
)
func testBackend(t *testing.T, backend string) {
// Default
dir, dirname := cmn.Tempdir(fmt.Sprintf("test_backend_%s_", backend))
defer dir.Close()
db := NewDB("testdb", backend, dirname)
require.Nil(t, db.Get([]byte("")))
require.Nil(t, db.Get(nil))
// Set empty ("")
db.Set([]byte(""), []byte(""))
require.NotNil(t, db.Get([]byte("")))
require.NotNil(t, db.Get(nil))
require.Empty(t, db.Get([]byte("")))
require.Empty(t, db.Get(nil))
// Set empty (nil)
db.Set([]byte(""), nil)
require.NotNil(t, db.Get([]byte("")))
require.NotNil(t, db.Get(nil))
require.Empty(t, db.Get([]byte("")))
require.Empty(t, db.Get(nil))
// Delete
db.Delete([]byte(""))
require.Nil(t, db.Get([]byte("")))
require.Nil(t, db.Get(nil))
}
func TestBackends(t *testing.T) {
testBackend(t, CLevelDBBackendStr)
testBackend(t, GoLevelDBBackendStr)
testBackend(t, MemDBBackendStr)
}