diff --git a/object/types_test.go b/object/types_test.go
new file mode 100644
index 0000000..50e4e0b
--- /dev/null
+++ b/object/types_test.go
@@ -0,0 +1,181 @@
+package object
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/refs"
+	"github.com/nspcc-dev/neofs-api-go/service"
+	"github.com/nspcc-dev/neofs-api-go/storagegroup"
+	"github.com/nspcc-dev/neofs-crypto/test"
+	"github.com/stretchr/testify/require"
+)
+
+func TestStringify(t *testing.T) {
+	res := `
+Object:
+	SystemHeader:
+		- ID=7e0b9c6c-aabc-4985-949e-2680e577b48b
+		- CID=11111111111111111111111111111111
+		- OwnerID=ALYeYC41emF6MrmUMc4a8obEPdgFhq9ran
+		- Version=1
+		- PayloadLength=1
+		- CreatedAt={UnixTime=1 Epoch=1}
+	UserHeaders:
+		- Type=Link
+		  Value={Type=Child ID=7e0b9c6c-aabc-4985-949e-2680e577b48b}
+		- Type=Redirect
+		  Value={CID=11111111111111111111111111111111 OID=7e0b9c6c-aabc-4985-949e-2680e577b48b}
+		- Type=UserHeader
+		  Value={Key=test_key Val=test_value}
+		- Type=Transform
+		  Value=Split
+		- Type=Tombstone
+		  Value=MARKED
+		- Type=Token
+		  Value={ID=7e0b9c6c-aabc-4985-949e-2680e577b48b OwnerID=ALYeYC41emF6MrmUMc4a8obEPdgFhq9ran Verb=Search Address=11111111111111111111111111111111/7e0b9c6c-aabc-4985-949e-2680e577b48b Created=1 ValidUntil=2 SessionKey=010203040506 Signature=010203040506}
+		- Type=HomoHash
+		  Value=1111111111111111111111111111111111111111111111111111111111111111
+		- Type=PayloadChecksum
+		  Value=[1 2 3 4 5 6]
+		- Type=Integrity
+		  Value={Checksum=010203040506 Signature=010203040506}
+		- Type=StorageGroup
+		  Value={DataSize=5 Hash=31313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131 Lifetime={Unit=UnixTime Value=555}}
+		- Type=PublicKey
+		  Value=[1 2 3 4 5 6]
+	Payload: []byte{0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7}
+`
+
+	key := test.DecodeKey(0)
+
+	uid, err := refs.NewOwnerID(&key.PublicKey)
+	require.NoError(t, err)
+
+	var oid refs.UUID
+
+	require.NoError(t, oid.Parse("7e0b9c6c-aabc-4985-949e-2680e577b48b"))
+
+	obj := &Object{
+		SystemHeader: SystemHeader{
+			Version:       1,
+			PayloadLength: 1,
+			ID:            oid,
+			OwnerID:       uid,
+			CID:           CID{},
+			CreatedAt: CreationPoint{
+				UnixTime: 1,
+				Epoch:    1,
+			},
+		},
+		Payload: []byte{1, 2, 3, 4, 5, 6, 7},
+	}
+
+	// *Header_Link
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Link{
+			Link: &Link{ID: oid, Type: Link_Child},
+		},
+	})
+
+	// *Header_Redirect
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Redirect{
+			Redirect: &Address{ObjectID: oid, CID: CID{}},
+		},
+	})
+
+	// *Header_UserHeader
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_UserHeader{
+			UserHeader: &UserHeader{
+				Key:   "test_key",
+				Value: "test_value",
+			},
+		},
+	})
+
+	// *Header_Transform
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Transform{
+			Transform: &Transform{
+				Type: Transform_Split,
+			},
+		},
+	})
+
+	// *Header_Tombstone
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Tombstone{
+			Tombstone: &Tombstone{},
+		},
+	})
+
+	// *Header_Token
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Token{
+			Token: &Token{
+				Signature: []byte{1, 2, 3, 4, 5, 6},
+				Token_Info: service.Token_Info{
+					ID:         oid,
+					OwnerID:    uid,
+					Verb:       service.Token_Info_Search,
+					Address:    service.Address{ObjectID: oid, CID: refs.CID{}},
+					Created:    1,
+					ValidUntil: 2,
+					SessionKey: []byte{1, 2, 3, 4, 5, 6},
+				},
+			},
+		},
+	})
+
+	// *Header_HomoHash
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_HomoHash{
+			HomoHash: Hash{},
+		},
+	})
+
+	// *Header_PayloadChecksum
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_PayloadChecksum{
+			PayloadChecksum: []byte{1, 2, 3, 4, 5, 6},
+		},
+	})
+
+	// *Header_Integrity
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_Integrity{
+			Integrity: &IntegrityHeader{
+				HeadersChecksum:   []byte{1, 2, 3, 4, 5, 6},
+				ChecksumSignature: []byte{1, 2, 3, 4, 5, 6},
+			},
+		},
+	})
+
+	// *Header_StorageGroup
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_StorageGroup{
+			StorageGroup: &storagegroup.StorageGroup{
+				ValidationDataSize: 5,
+				ValidationHash:     storagegroup.Hash{},
+				Lifetime: &storagegroup.StorageGroup_Lifetime{
+					Unit:  storagegroup.StorageGroup_Lifetime_UnixTime,
+					Value: 555,
+				},
+			},
+		},
+	})
+
+	// *Header_PublicKey
+	obj.Headers = append(obj.Headers, Header{
+		Value: &Header_PublicKey{
+			PublicKey: &PublicKey{Value: []byte{1, 2, 3, 4, 5, 6}},
+		},
+	})
+
+	buf := new(bytes.Buffer)
+
+	require.NoError(t, Stringify(buf, obj))
+	require.Equal(t, res, buf.String())
+}