// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package ipnlocal import ( "testing" "inet.af/netaddr" "tailscale.com/tailcfg" "tailscale.com/types/netmap" ) func TestNetworkMapCompare(t *testing.T) { prefix1, err := netaddr.ParseIPPrefix("192.168.0.0/24") if err != nil { t.Fatal(err) } node1 := &tailcfg.Node{Addresses: []netaddr.IPPrefix{prefix1}} prefix2, err := netaddr.ParseIPPrefix("10.0.0.0/8") if err != nil { t.Fatal(err) } node2 := &tailcfg.Node{Addresses: []netaddr.IPPrefix{prefix2}} tests := []struct { name string a, b *netmap.NetworkMap want bool }{ { "both nil", nil, nil, true, }, { "b nil", &netmap.NetworkMap{}, nil, false, }, { "a nil", nil, &netmap.NetworkMap{}, false, }, { "both default", &netmap.NetworkMap{}, &netmap.NetworkMap{}, true, }, { "names identical", &netmap.NetworkMap{Name: "map1"}, &netmap.NetworkMap{Name: "map1"}, true, }, { "names differ", &netmap.NetworkMap{Name: "map1"}, &netmap.NetworkMap{Name: "map2"}, false, }, { "Peers identical", &netmap.NetworkMap{Peers: []*tailcfg.Node{}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{}}, true, }, { "Peer list length", // length of Peers list differs &netmap.NetworkMap{Peers: []*tailcfg.Node{{}}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{}}, false, }, { "Node names identical", &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{Name: "A"}}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{Name: "A"}}}, true, }, { "Node names differ", &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{Name: "A"}}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{Name: "B"}}}, false, }, { "Node lists identical", &netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}}, true, }, { "Node lists differ", &netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node2}}, false, }, { "Node Users differ", // User field is not checked. &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{User: 0}}}, &netmap.NetworkMap{Peers: []*tailcfg.Node{&tailcfg.Node{User: 1}}}, true, }, } for _, tt := range tests { got := dnsMapsEqual(tt.a, tt.b) if got != tt.want { t.Errorf("%s: Equal = %v; want %v", tt.name, got, tt.want) } } }