1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
* Copyright 2014-2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.net.topology.impl;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.onosproject.event.Event;
import org.onosproject.common.event.impl.TestEventDispatcher;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.Device;
import org.onosproject.net.Link;
import org.onosproject.net.Path;
import org.onosproject.net.provider.AbstractProvider;
import org.onosproject.net.provider.ProviderId;
import org.onosproject.net.topology.DefaultGraphDescription;
import org.onosproject.net.topology.GraphDescription;
import org.onosproject.net.topology.LinkWeight;
import org.onosproject.net.topology.Topology;
import org.onosproject.net.topology.TopologyCluster;
import org.onosproject.net.topology.TopologyEvent;
import org.onosproject.net.topology.TopologyGraph;
import org.onosproject.net.topology.TopologyListener;
import org.onosproject.net.topology.TopologyProvider;
import org.onosproject.net.topology.TopologyProviderRegistry;
import org.onosproject.net.topology.TopologyProviderService;
import org.onosproject.net.topology.TopologyService;
import org.onosproject.store.trivial.SimpleTopologyStore;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import static com.google.common.collect.ImmutableSet.of;
import static org.junit.Assert.*;
import static org.onosproject.net.NetTestTools.*;
import static org.onosproject.net.PortNumber.portNumber;
import static org.onosproject.net.topology.ClusterId.clusterId;
import static org.onosproject.net.topology.TopologyEvent.Type.TOPOLOGY_CHANGED;
/**
* Test of the topology subsystem.
*/
public class TopologyManagerTest {
private static final ProviderId PID = new ProviderId("of", "foo");
private TopologyManager mgr;
protected TopologyService service;
protected TopologyProviderRegistry registry;
protected TopologyProviderService providerService;
protected TestProvider provider;
protected TestListener listener = new TestListener();
@Before
public void setUp() {
mgr = new TopologyManager();
service = mgr;
registry = mgr;
mgr.store = new SimpleTopologyStore();
injectEventDispatcher(mgr, new TestEventDispatcher());
mgr.activate();
service.addListener(listener);
provider = new TestProvider();
providerService = registry.register(provider);
assertTrue("provider should be registered",
registry.getProviders().contains(provider.id()));
}
@After
public void tearDown() {
mgr.deactivate();
service.removeListener(listener);
}
@Test
public void basics() {
Topology topology = service.currentTopology();
assertNull("no topo expected", topology);
submitTopologyGraph();
validateEvents(TOPOLOGY_CHANGED);
topology = service.currentTopology();
assertTrue("should be latest", service.isLatest(topology));
submitTopologyGraph();
validateEvents(TOPOLOGY_CHANGED);
assertFalse("should be latest", service.isLatest(topology));
}
private void submitTopologyGraph() {
Set<Device> devices = of(device("a"), device("b"),
device("c"), device("d"),
device("e"), device("f"));
Set<Link> links = of(link("a", 1, "b", 1), link("b", 1, "a", 1),
link("b", 2, "c", 1), link("c", 1, "b", 2),
link("c", 2, "d", 1), link("d", 1, "c", 2),
link("d", 2, "a", 2), link("a", 2, "d", 2),
link("e", 1, "f", 1), link("f", 1, "e", 1));
GraphDescription data = new DefaultGraphDescription(4321L, System.currentTimeMillis(), devices, links);
providerService.topologyChanged(data, null);
}
@Test
public void clusters() {
submitTopologyGraph();
Topology topology = service.currentTopology();
assertNotNull("topo expected", topology);
assertEquals("wrong cluster count", 2, topology.clusterCount());
assertEquals("wrong device count", 6, topology.deviceCount());
assertEquals("wrong link count", 10, topology.linkCount());
assertEquals("wrong cluster count", 2, service.getClusters(topology).size());
TopologyCluster cluster = service.getCluster(topology, clusterId(0));
assertEquals("wrong device count", 4, cluster.deviceCount());
assertEquals("wrong device count", 4, service.getClusterDevices(topology, cluster).size());
assertEquals("wrong link count", 8, cluster.linkCount());
assertEquals("wrong link count", 8, service.getClusterLinks(topology, cluster).size());
}
@Test
public void structure() {
submitTopologyGraph();
Topology topology = service.currentTopology();
assertTrue("should be infrastructure point",
service.isInfrastructure(topology, new ConnectPoint(did("a"), portNumber(1))));
assertFalse("should not be infrastructure point",
service.isInfrastructure(topology, new ConnectPoint(did("a"), portNumber(3))));
assertTrue("should be broadcast point",
service.isBroadcastPoint(topology, new ConnectPoint(did("a"), portNumber(3))));
}
@Test
public void graph() {
submitTopologyGraph();
Topology topology = service.currentTopology();
TopologyGraph graph = service.getGraph(topology);
assertEquals("wrong vertex count", 6, graph.getVertexes().size());
assertEquals("wrong edge count", 10, graph.getEdges().size());
}
@Test
public void precomputedPath() {
submitTopologyGraph();
Topology topology = service.currentTopology();
Set<Path> paths = service.getPaths(topology, did("a"), did("c"));
assertEquals("wrong path count", 2, paths.size());
Path path = paths.iterator().next();
assertEquals("wrong path length", 2, path.links().size());
assertEquals("wrong path cost", 2, path.cost(), 0.01);
}
@Test
public void onDemandPath() {
submitTopologyGraph();
Topology topology = service.currentTopology();
LinkWeight weight = edge -> 3.3;
Set<Path> paths = service.getPaths(topology, did("a"), did("c"), weight);
assertEquals("wrong path count", 2, paths.size());
Path path = paths.iterator().next();
assertEquals("wrong path length", 2, path.links().size());
assertEquals("wrong path cost", 6.6, path.cost(), 0.01);
}
protected void validateEvents(Enum... types) {
int i = 0;
assertEquals("wrong events received", types.length, listener.events.size());
for (Event event : listener.events) {
assertEquals("incorrect event type", types[i], event.type());
i++;
}
listener.events.clear();
}
private class TestProvider extends AbstractProvider implements TopologyProvider {
public TestProvider() {
super(PID);
}
@Override
public void triggerRecompute() {
}
}
private static class TestListener implements TopologyListener {
final List<TopologyEvent> events = new ArrayList<>();
@Override
public void event(TopologyEvent event) {
events.add(event);
}
}
}
|
