From e4111ff3e7a42d61bd0934b78bf9a9cbd4e64015 Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Thu, 5 Nov 2020 19:31:23 +0300
Subject: [PATCH] [#190] sdk/object: Implement AddParentIDFilter method on
 SearchFilters

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 pkg/object/search.go      |  4 ++++
 pkg/object/search_test.go | 28 ++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/pkg/object/search.go b/pkg/object/search.go
index ac83220..23eeb2c 100644
--- a/pkg/object/search.go
+++ b/pkg/object/search.go
@@ -234,3 +234,7 @@ func (f *SearchFilters) AddChildfreeFilter() {
 func (f *SearchFilters) AddNonChildfreeFilter() {
 	f.addChildFreeFilter(false)
 }
+
+func (f *SearchFilters) AddParentIDFilter(m SearchMatchType, id *ID) {
+	f.addReservedFilter(m, fKeyParent, id)
+}
diff --git a/pkg/object/search_test.go b/pkg/object/search_test.go
index 8abce4b..e126b5b 100644
--- a/pkg/object/search_test.go
+++ b/pkg/object/search_test.go
@@ -1,6 +1,8 @@
 package object_test
 
 import (
+	"crypto/rand"
+	"crypto/sha256"
 	"testing"
 
 	"github.com/nspcc-dev/neofs-api-go/pkg/object"
@@ -106,3 +108,29 @@ func TestSearchFilters_AddNonLeafFilter(t *testing.T) {
 	require.Equal(t, v2object.FilterPropertyLeaf, f.Header())
 	require.Equal(t, v2object.BooleanPropertyValueFalse, f.Value())
 }
+
+func testOID() *object.ID {
+	cs := [sha256.Size]byte{}
+
+	rand.Read(cs[:])
+
+	id := object.NewID()
+	id.SetSHA256(cs)
+
+	return id
+}
+
+func TestSearchFilters_AddParentIDFilter(t *testing.T) {
+	par := testOID()
+
+	fs := object.SearchFilters{}
+	fs.AddParentIDFilter(object.MatchStringEqual, par)
+
+	fsV2 := fs.ToV2()
+
+	require.Len(t, fsV2, 1)
+
+	require.Equal(t, v2object.FilterHeaderParent, fsV2[0].GetKey())
+	require.Equal(t, par.String(), fsV2[0].GetValue())
+	require.Equal(t, v2object.MatchStringEqual, fsV2[0].GetMatchType())
+}