client: fix bug of GetNeighbor()

also add a unit test

Signed-off-by: Wataru Ishida <ishida.wataru@lab.ntt.co.jp>

1 files changed, 3 insertions, 0 deletions

diff --git a/client/client.go b/client/client.go
index 734e7ec4..a2107637 100644
--- a/client/client.go
+++ b/client/client.go
@@ -143,6 +143,9 @@ func (cli *GoBGPClient) GetNeighbor(name string) (*config.Neighbor, error) {
 	if err != nil {
 		return nil, err
 	}
+	if len(ns) == 0 {
+		return nil, fmt.Errorf("not found neighbor %s", name)
+	}
 	return ns[0], nil
 }