-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
ConnectToRandomCoreServerStrategyTest.java
92 lines (77 loc) · 3.57 KB
/
ConnectToRandomCoreServerStrategyTest.java
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
/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.causalclustering.readreplica;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import org.neo4j.causalclustering.discovery.ClientConnectorAddresses;
import org.neo4j.causalclustering.discovery.CoreServerInfo;
import org.neo4j.causalclustering.discovery.CoreTopology;
import org.neo4j.causalclustering.discovery.TopologyService;
import org.neo4j.causalclustering.identity.ClusterId;
import org.neo4j.causalclustering.identity.MemberId;
import org.neo4j.helpers.AdvertisedSocketAddress;
import static java.util.Collections.singletonList;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.core.AnyOf.anyOf;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.neo4j.helpers.collection.Iterators.asSet;
public class ConnectToRandomCoreServerStrategyTest
{
@Test
public void shouldConnectToRandomCoreServer() throws Exception
{
// given
MemberId memberId1 = new MemberId( UUID.randomUUID() );
MemberId memberId2 = new MemberId( UUID.randomUUID() );
MemberId memberId3 = new MemberId( UUID.randomUUID() );
TopologyService topologyService = mock( TopologyService.class );
when( topologyService.coreServers() )
.thenReturn( fakeCoreTopology( memberId1, memberId2, memberId3 ) );
ConnectToRandomCoreServerStrategy connectionStrategy = new ConnectToRandomCoreServerStrategy();
connectionStrategy.setTopologyService( topologyService );
// when
Optional<MemberId> memberId = connectionStrategy.upstreamDatabase();
// then
assertTrue( memberId.isPresent() );
assertThat( memberId.get(), anyOf( equalTo( memberId1 ), equalTo( memberId2 ), equalTo( memberId3 ) ) );
}
static CoreTopology fakeCoreTopology( MemberId... memberIds )
{
assert memberIds.length > 0;
ClusterId clusterId = new ClusterId( UUID.randomUUID() );
Map<MemberId,CoreServerInfo> coreMembers = new HashMap<>();
int offset = 0;
for ( MemberId memberId : memberIds )
{
coreMembers.put( memberId, new CoreServerInfo( new AdvertisedSocketAddress( "localhost", 5000 + offset ),
new AdvertisedSocketAddress( "localhost", 6000 + offset ), new ClientConnectorAddresses(
singletonList( new ClientConnectorAddresses.ConnectorUri( ClientConnectorAddresses.Scheme.bolt,
new AdvertisedSocketAddress( "localhost", 7000 + offset ) ) ) ), asSet( "core" ) ) );
offset++;
}
return new CoreTopology( clusterId, false, coreMembers );
}
}