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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.core;
import com.yahoo.vespa.clustercontroller.core.database.Database;
import com.yahoo.vespa.clustercontroller.core.database.DatabaseFactory;
import com.yahoo.vespa.clustercontroller.core.database.DatabaseHandler;
import com.yahoo.vespa.clustercontroller.core.listeners.NodeAddedOrRemovedListener;
import com.yahoo.vespa.clustercontroller.core.listeners.NodeStateOrHostInfoChangeHandler;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class DatabaseHandlerTest {
static class Fixture {
final ClusterFixture clusterFixture = ClusterFixture.forFlatCluster(10);
final FleetController mockController = mock(FleetController.class);
final Database mockDatabase = mock(Database.class);
final Timer mockTimer = mock(Timer.class);
final DatabaseFactory mockDbFactory = (params) -> mockDatabase;
final String databaseAddress = "localhost:0";
final Object monitor = new Object();
final ClusterStateBundle dummyBundle;
Fixture() throws Exception {
dummyBundle = ClusterStateBundleUtil.makeBundle("distributor:2 storage:2",
StateMapping.of("default", "distributor:2 storage:2 .0.s:d"),
StateMapping.of("upsidedown", "distributor:2 .0.s:d storage:2"));
when(mockDatabase.isClosed()).thenReturn(false);
when(mockDatabase.storeMasterVote(anyInt())).thenReturn(true);
when(mockDatabase.storeLastPublishedStateBundle(any())).thenReturn(true);
when(mockTimer.getCurrentTimeInMillis()).thenReturn(1000000L);
}
DatabaseHandler.DatabaseContext createMockContext() {
return new DatabaseHandler.DatabaseContext() {
@Override
public ContentCluster getCluster() {
return clusterFixture.cluster();
}
@Override
public FleetController getFleetController() {
return mockController;
}
@Override
public NodeAddedOrRemovedListener getNodeAddedOrRemovedListener() {
return null;
}
@Override
public NodeStateOrHostInfoChangeHandler getNodeStateUpdateListener() {
return null;
}
};
}
DatabaseHandler createHandler() throws Exception {
FleetControllerContext fleetControllerContext = mock(FleetControllerContext.class);
when(fleetControllerContext.id()).thenReturn(new FleetControllerId("clusterName", 0));
return new DatabaseHandler(fleetControllerContext, mockDbFactory, mockTimer, databaseAddress, monitor);
}
}
@Test
public void can_store_latest_cluster_state_bundle() throws Exception {
Fixture f = new Fixture();
DatabaseHandler handler = f.createHandler();
handler.doNextZooKeeperTask(f.createMockContext()); // Database setup step
handler.saveLatestClusterStateBundle(f.createMockContext(), f.dummyBundle);
verify(f.mockDatabase).storeLastPublishedStateBundle(eq(f.dummyBundle));
}
@Test
public void can_load_latest_cluster_state_bundle() throws Exception {
Fixture f = new Fixture();
DatabaseHandler handler = f.createHandler();
handler.doNextZooKeeperTask(f.createMockContext()); // Database setup step
when(f.mockDatabase.retrieveLastPublishedStateBundle()).thenReturn(f.dummyBundle);
ClusterStateBundle retrievedBundle = handler.getLatestClusterStateBundle();
assertEquals(f.dummyBundle, retrievedBundle);
}
// FIXME I don't like the semantics of this, but it mirrors the legacy behavior for the
// rest of the DB load operations exposed by the DatabaseHandler.
@Test
public void empty_bundle_is_returned_if_no_db_connection() throws Exception {
Fixture f = new Fixture();
DatabaseHandler handler = f.createHandler();
// Note: no DB setup step
ClusterStateBundle retrievedBundle = handler.getLatestClusterStateBundle();
assertEquals(ClusterStateBundle.empty(), retrievedBundle);
}
}
|
