From 5844096017ffadcf52eedf1475154b7b6ef0b925 Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Thu, 27 May 2021 14:31:30 +0300
Subject: [PATCH] [#288] pkg/eacl: Convert nil eACL target to nil API v2
 message

Make `Target.ToV2` method to return `nil` when called on `nil`. Write
corresponding unit test.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 pkg/acl/eacl/target.go      | 6 ++++++
 pkg/acl/eacl/target_test.go | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/pkg/acl/eacl/target.go b/pkg/acl/eacl/target.go
index b951082..8574e48 100644
--- a/pkg/acl/eacl/target.go
+++ b/pkg/acl/eacl/target.go
@@ -108,7 +108,13 @@ func (t Target) Role() Role {
 }
 
 // ToV2 converts Target to v2 acl.EACLRecord.Target message.
+//
+// Nil Target converts to nil.
 func (t *Target) ToV2() *v2acl.Target {
+	if t == nil {
+		return nil
+	}
+
 	target := new(v2acl.Target)
 
 	target.SetRole(t.role.ToV2())
diff --git a/pkg/acl/eacl/target_test.go b/pkg/acl/eacl/target_test.go
index 5c33ec7..6612e3a 100644
--- a/pkg/acl/eacl/target_test.go
+++ b/pkg/acl/eacl/target_test.go
@@ -61,3 +61,11 @@ func TestTargetEncoding(t *testing.T) {
 		require.Equal(t, tar, tar2)
 	})
 }
+
+func TestTarget_ToV2(t *testing.T) {
+	t.Run("nil", func(t *testing.T) {
+		var x *Target
+
+		require.Nil(t, x.ToV2())
+	})
+}