[#155] sdk/object: Define object types

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/object/type.go

@@ -0,0 +1,35 @@
+package object
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/object"
+)
+
+type Type uint8
+
+const (
+	TypeRegular Type = iota
+	TypeTombstone
+	TypeStorageGroup
+)
+
+func (t Type) ToV2() object.Type {
+	switch t {
+	case TypeTombstone:
+		return object.TypeTombstone
+	case TypeStorageGroup:
+		return object.TypeStorageGroup
+	default:
+		return object.TypeRegular
+	}
+}
+
+func TypeFromV2(t object.Type) Type {
+	switch t {
+	case object.TypeTombstone:
+		return TypeTombstone
+	case object.TypeStorageGroup:
+		return TypeStorageGroup
+	default:
+		return TypeRegular
+	}
+}

pkg/object/type_test.go

@@ -0,0 +1,36 @@
+package object
+
+import (
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/object"
+	"github.com/stretchr/testify/require"
+)
+
+func TestType_ToV2(t *testing.T) {
+	typs := []struct {
+		t  Type
+		t2 object.Type
+	}{
+		{
+			t:  TypeRegular,
+			t2: object.TypeRegular,
+		},
+		{
+			t:  TypeTombstone,
+			t2: object.TypeTombstone,
+		},
+		{
+			t:  TypeStorageGroup,
+			t2: object.TypeStorageGroup,
+		},
+	}
+
+	for _, item := range typs {
+		t2 := item.t.ToV2()
+
+		require.Equal(t, item.t2, t2)
+
+		require.Equal(t, item.t, TypeFromV2(item.t2))
+	}
+}