1 files changed, 122 insertions, 0 deletions
diff --git a/swarm/state/dbstore_test.go b/swarm/state/dbstore_test.go
new file mode 100644
index 000000000..6683e788f
--- /dev/null
+++ b/swarm/state/dbstore_test.go
@@ -0,0 +1,122 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package state
+
+import (
+	"bytes"
+	"errors"
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+)
+
+var ErrInvalidArraySize = errors.New("invalid byte array size")
+var ErrInvalidValuePersisted = errors.New("invalid value was persisted to the db")
+
+type SerializingType struct {
+	key   string
+	value string
+}
+
+func (st *SerializingType) MarshalBinary() (data []byte, err error) {
+	d := []byte(strings.Join([]string{st.key, st.value}, ";"))
+
+	return d, nil
+}
+
+func (st *SerializingType) UnmarshalBinary(data []byte) (err error) {
+	d := bytes.Split(data, []byte(";"))
+	l := len(d)
+	if l == 0 {
+		return ErrInvalidArraySize
+	}
+	if l == 2 {
+		keyLen := len(d[0])
+		st.key = string(d[0][:keyLen])
+
+		valLen := len(d[1])
+		st.value = string(d[1][:valLen])
+	}
+
+	return nil
+}
+
+// TestDBStore tests basic functionality of DBStore.
+func TestDBStore(t *testing.T) {
+	dir, err := ioutil.TempDir("", "db_store_test")
+	if err != nil {
+		panic(err)
+	}
+	defer os.RemoveAll(dir)
+
+	store, err := NewDBStore(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	testStore(t, store)
+
+	store.Close()
+
+	persistedStore, err := NewDBStore(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer persistedStore.Close()
+
+	testPersistedStore(t, persistedStore)
+}
+
+func testStore(t *testing.T, store Store) {
+	ser := &SerializingType{key: "key1", value: "value1"}
+	jsonify := []string{"a", "b", "c"}
+
+	err := store.Put(ser.key, ser)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = store.Put("key2", jsonify)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+}
+
+func testPersistedStore(t *testing.T, store Store) {
+	ser := &SerializingType{}
+
+	err := store.Get("key1", ser)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if ser.key != "key1" || ser.value != "value1" {
+		t.Fatal(ErrInvalidValuePersisted)
+	}
+
+	as := []string{}
+	err = store.Get("key2", &as)
+
+	if len(as) != 3 {
+		t.Fatalf("serialized array did not match expectation")
+	}
+	if as[0] != "a" || as[1] != "b" || as[2] != "c" {
+		t.Fatalf("elements serialized did not match expected values")
+	}
+}