[#1698] pilorama: Add a test for the empty FileName

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>

pkg/local_object_storage/pilorama/forest_test.go

@@ -312,6 +312,20 @@ func testForestTreeAddByPath(t *testing.T, s Forest) {
 			require.Equal(t, lm[1].Child, nodes[0])
 		})
 	})
+
+	t.Run("empty component", func(t *testing.T) {
+		meta := []KeyValue{
+			{Key: AttributeVersion, Value: []byte("XXX")},
+			{Key: AttributeFilename, Value: []byte{}}}
+		lm, err := s.TreeAddByPath(d, treeID, AttributeFilename, []string{"path", "to"}, meta)
+		require.NoError(t, err)
+		require.Equal(t, 1, len(lm))
+
+		nodes, err := s.TreeGetByPath(d.CID, treeID, AttributeFilename, []string{"path", "to", ""}, false)
+		require.NoError(t, err)
+		require.Equal(t, 1, len(nodes))
+		require.Equal(t, lm[0].Child, nodes[0])
+	})
 }
 
 func TestForest_Apply(t *testing.T) {

pkg/local_object_storage/pilorama/meta_test.go

@@ -15,6 +15,20 @@ func TestMeta_Bytes(t *testing.T) {
 		require.Equal(t, uint64(0), m.Time)
 		require.Equal(t, []byte{0, 0}, m.Bytes())
 	})
+	t.Run("empty attribute value", func(t *testing.T) {
+		expected := Meta{
+			Time: 123,
+			Items: []KeyValue{
+				{"abc", []byte{1, 2, 3}},
+				{AttributeFilename, []byte{}},
+			}}
+
+		data := expected.Bytes()
+
+		var actual Meta
+		require.NoError(t, actual.FromBytes(data))
+		require.Equal(t, expected, actual)
+	})
 	t.Run("filled", func(t *testing.T) {
 		expected := Meta{
 			Time: 123,