| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package l2topology |
| 4 | |
| 5 | import ( |
| 6 | "github.com/stretchr/testify/require" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestCanonicalTopologyKeyHelpers_NormalizeDeterministically(t *testing.T) { |
| 11 | require.Equal(t, |
| 12 | "00:11:22:33:44:55,0a000001,switch-a", |
| 13 | canonicalTopologyHardwareKey([]string{" Switch-A ", "0A000001", "00:11:22:33:44:55", "switch-a"}), |
| 14 | ) |
| 15 | require.Equal(t, |
| 16 | "example.net,switch-a", |
| 17 | canonicalTopologyStringListKey([]string{" Switch-A ", "", "example.net", "switch-a"}), |
| 18 | ) |
| 19 | } |
| 20 | |
| 21 | func TestAssignTopologyActorIDsAndLinkEndpoints_IsDeterministic(t *testing.T) { |
| 22 | actors := []Actor{ |
| 23 | { |
| 24 | ActorType: "device", |
| 25 | Layer: "l2", |
| 26 | Source: "snmp", |
| 27 | Match: Match{ |
| 28 | MacAddresses: []string{"00:11:22:33:44:55"}, |
| 29 | Hostnames: []string{"switch-a"}, |
| 30 | }, |
| 31 | }, |
| 32 | { |
| 33 | ActorType: "device", |
| 34 | Layer: "l2", |
| 35 | Source: "snmp", |
| 36 | Match: Match{ |
| 37 | MacAddresses: []string{"00-11-22-33-44-55"}, |
| 38 | Hostnames: []string{"switch-a-duplicate"}, |
| 39 | }, |
| 40 | }, |
| 41 | { |
| 42 | ActorType: "endpoint", |
| 43 | Layer: "l2", |
| 44 | Source: "derived", |
| 45 | Match: Match{ |
| 46 | IPAddresses: []string{"10.0.0.2"}, |
| 47 | }, |
| 48 | }, |
| 49 | { |
| 50 | ActorType: "segment", |
| 51 | Layer: "l2", |
| 52 | Source: "derived", |
| 53 | Match: Match{}, |
| 54 | }, |
| 55 | } |
| 56 | links := []Link{ |
| 57 | { |
| 58 | Protocol: "lldp", |
| 59 | Direction: "outbound", |
| 60 | State: "up", |
| 61 | Src: LinkEndpoint{ |
| 62 | Match: Match{MacAddresses: []string{"00:11:22:33:44:55"}}, |
| 63 | Attributes: map[string]any{ |
| 64 | "if_name": "eth0", |
| 65 | }, |
| 66 | }, |
| 67 | Dst: LinkEndpoint{ |
| 68 | Match: Match{IPAddresses: []string{"10.0.0.2"}}, |
| 69 | Attributes: map[string]any{ |
| 70 | "if_name": "eth9", |
| 71 | }, |
| 72 | }, |
| 73 | }, |
| 74 | { |
| 75 | Protocol: "lldp", |
| 76 | Direction: "outbound", |
| 77 | State: "up", |
| 78 | Src: LinkEndpoint{ |
| 79 | Match: Match{IPAddresses: []string{"10.0.0.2"}}, |
| 80 | Attributes: map[string]any{ |
| 81 | "if_name": "eth9", |
| 82 | }, |
| 83 | }, |
| 84 | Dst: LinkEndpoint{ |
| 85 | Match: Match{MacAddresses: []string{"00:11:22:33:44:55"}}, |
| 86 | Attributes: map[string]any{ |
| 87 | "if_name": "eth0", |
| 88 | }, |
| 89 | }, |
| 90 | }, |
| 91 | } |
| 92 | |
| 93 | assignTopologyActorIDsAndLinkEndpoints(actors, links) |
| 94 | |
| 95 | require.Equal(t, "mac:00:11:22:33:44:55", actors[0].ActorID) |
| 96 | require.Equal(t, "mac:00:11:22:33:44:55#2", actors[1].ActorID) |
| 97 | require.Equal(t, "ip:10.0.0.2", actors[2].ActorID) |
| 98 | require.Equal(t, "generated:segment", actors[3].ActorID) |
| 99 | require.Equal(t, "mac:00:11:22:33:44:55", links[0].SrcActorID) |
| 100 | require.Equal(t, "ip:10.0.0.2", links[0].DstActorID) |
| 101 | require.Equal(t, "ip:10.0.0.2", links[1].SrcActorID) |
| 102 | require.Equal(t, "mac:00:11:22:33:44:55", links[1].DstActorID) |
| 103 | |
| 104 | sortTopologyActors(actors) |
| 105 | require.Equal(t, []string{ |
| 106 | "mac:00:11:22:33:44:55", |
| 107 | "mac:00:11:22:33:44:55#2", |
| 108 | "ip:10.0.0.2", |
| 109 | "generated:segment", |
| 110 | }, []string{actors[0].ActorID, actors[1].ActorID, actors[2].ActorID, actors[3].ActorID}) |
| 111 | |
| 112 | sortTopologyLinks(links) |
| 113 | require.Equal(t, "ip:10.0.0.2", links[0].SrcActorID) |
| 114 | require.Equal(t, "mac:00:11:22:33:44:55", links[0].DstActorID) |
| 115 | require.Equal(t, "mac:00:11:22:33:44:55", links[1].SrcActorID) |
| 116 | require.Equal(t, "ip:10.0.0.2", links[1].DstActorID) |
| 117 | } |
| 118 | |
| 119 | func TestEnrichTopologyPortTablesWithLinkCounts_AddsCountsToMatchingPorts(t *testing.T) { |
| 120 | actors := []Actor{ |
| 121 | { |
| 122 | ActorID: "device-a", |
| 123 | Tables: map[string][]map[string]any{ |
| 124 | "ports": { |
| 125 | {"name": "eth0"}, |
| 126 | {"name": "eth1"}, |
| 127 | }, |
| 128 | }, |
| 129 | }, |
| 130 | { |
| 131 | ActorID: "device-b", |
| 132 | Tables: map[string][]map[string]any{ |
| 133 | "ports": { |
| 134 | {"name": "xe-0/0/0"}, |
| 135 | }, |
| 136 | }, |
| 137 | }, |
| 138 | } |
| 139 | links := []Link{ |
| 140 | { |
| 141 | SrcActorID: "device-a", |
| 142 | DstActorID: "device-b", |
| 143 | Src: LinkEndpoint{Attributes: map[string]any{"if_name": "eth0"}}, |
| 144 | Dst: LinkEndpoint{Attributes: map[string]any{"if_name": "xe-0/0/0"}}, |
| 145 | }, |
| 146 | { |
| 147 | SrcActorID: "device-a", |
| 148 | DstActorID: "device-b", |
| 149 | Src: LinkEndpoint{Attributes: map[string]any{"if_name": "eth0"}}, |
| 150 | Dst: LinkEndpoint{Attributes: map[string]any{"if_name": "xe-0/0/0"}}, |
| 151 | }, |
| 152 | } |
| 153 | |
| 154 | enrichTopologyPortTablesWithLinkCounts(actors, links) |
| 155 | |
| 156 | require.Equal(t, 2, actors[0].Tables["ports"][0]["link_count"]) |
| 157 | _, exists := actors[0].Tables["ports"][1]["link_count"] |
| 158 | require.False(t, exists) |
| 159 | require.Equal(t, 2, actors[1].Tables["ports"][0]["link_count"]) |
| 160 | } |