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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.duper;
import ai.vespa.http.DomainName;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.model.api.HostInfo;
import com.yahoo.config.model.api.Model;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.service.monitor.DuperModelListener;
import org.junit.Before;
import org.junit.Test;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Stream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;
/**
* @author hakonhall
*/
public class DuperModelTest {
private final DuperModel duperModel = new DuperModel();
private final ApplicationId id1 = ApplicationId.fromSerializedForm("tenant:app1:default");
private final ApplicationInfo application1 = mock(ApplicationInfo.class);
private final DomainName hostname1_1 = DomainName.of("hostname1-1");
private final DomainName hostname1_2 = DomainName.of("hostname1-2");
private final ApplicationId id2 = ApplicationId.fromSerializedForm("tenant:app2:default");
private final ApplicationInfo application2 = mock(ApplicationInfo.class);
private final DomainName hostname2_1 = DomainName.of("hostname2-1");
private final DuperModelListener listener1 = mock(DuperModelListener.class);
@Before
public void setUp() {
setUpApplication(id1, application1, hostname1_1, hostname1_2);
setUpApplication(id2, application2, hostname2_1);
}
private void setUpApplication(ApplicationId id, ApplicationInfo info, DomainName... hostnames) {
when(info.getApplicationId()).thenReturn(id);
Model model = mock(Model.class);
when(info.getModel()).thenReturn(model);
List<HostInfo> hostInfos = Arrays.stream(hostnames)
.map(hostname -> new HostInfo(hostname.value(), List.of()))
.toList();
when(model.getHosts()).thenReturn(hostInfos);
}
@Test
public void testListeners() {
assertEquals(0, duperModel.numberOfApplications());
duperModel.add(application1);
assertEquals(Optional.of(application1), duperModel.getApplicationInfo(id1));
assertEquals(Arrays.asList(application1), duperModel.getApplicationInfos());
assertEquals(1, duperModel.numberOfApplications());
duperModel.registerListener(listener1);
verify(listener1, times(1)).applicationActivated(application1);
verifyNoMoreInteractions(listener1);
duperModel.remove(id2);
assertEquals(1, duperModel.numberOfApplications());
verifyNoMoreInteractions(listener1);
duperModel.add(application2);
assertEquals(2, duperModel.numberOfApplications());
verify(listener1, times(1)).applicationActivated(application2);
verifyNoMoreInteractions(listener1);
duperModel.remove(id1);
assertEquals(Optional.empty(), duperModel.getApplicationInfo(id1));
verify(listener1, times(1)).applicationRemoved(id1);
verifyNoMoreInteractions(listener1);
assertEquals(Arrays.asList(application2), duperModel.getApplicationInfos());
duperModel.remove(id1);
verifyNoMoreInteractions(listener1);
}
@Test
public void hostIndices() {
assertEquals(0, duperModel.numberOfHosts());
duperModel.add(application1);
assertEquals(2, duperModel.numberOfHosts());
assertEquals(Optional.of(application1), duperModel.getApplicationInfo(hostname1_1));
assertEquals(Optional.empty(), duperModel.getApplicationInfo(hostname2_1));
duperModel.add(application2);
assertEquals(3, duperModel.numberOfHosts());
assertEquals(Optional.of(application1), duperModel.getApplicationInfo(hostname1_1));
assertEquals(Optional.of(application2), duperModel.getApplicationInfo(hostname2_1));
duperModel.remove(application1.getApplicationId());
assertEquals(1, duperModel.numberOfHosts());
assertEquals(Optional.empty(), duperModel.getApplicationInfo(hostname1_1));
assertEquals(Optional.of(application2), duperModel.getApplicationInfo(hostname2_1));
// Remove hostname2_1 and add hostname1_1 added to id2
setUpApplication(id2, application2, hostname1_1);
duperModel.add(application2);
assertEquals(1, duperModel.numberOfHosts());
assertEquals(Optional.of(application2), duperModel.getApplicationInfo(hostname1_1));
assertEquals(Optional.empty(), duperModel.getApplicationInfo(hostname2_1));
}
@Test
public void hostIndicesForOneApplication() {
assertEquals(0, duperModel.numberOfApplications());
assertEquals(0, duperModel.numberOfHosts());
assertEquals(Set.of(), duperModel.getHostnames(id1));
addAndVerifyApplication1("host1");
addAndVerifyApplication1("host1", "host2");
addAndVerifyApplication1("host2", "host3");
assertEquals(Optional.empty(), duperModel.getApplicationId(DomainName.of("host1")));
duperModel.remove(id1);
assertEquals(0, duperModel.numberOfApplications());
assertEquals(0, duperModel.numberOfHosts());
assertEquals(Set.of(), duperModel.getHostnames(id1));
}
private void addAndVerifyApplication1(String... hostnameStrings) {
DomainName[] hostnameArray = Stream.of(hostnameStrings).map(DomainName::of).toArray(DomainName[]::new);
setUpApplication(id1, application1, hostnameArray);
duperModel.add(application1);
assertEquals(1, duperModel.numberOfApplications());
Optional<ApplicationInfo> applicationInfo = duperModel.getApplicationInfo(id1);
assertTrue(applicationInfo.isPresent());
assertSame(application1, applicationInfo.get());
assertEquals(hostnameArray.length, duperModel.numberOfHosts());
assertEquals(Set.of(hostnameArray), duperModel.getHostnames(id1));
Stream.of(hostnameArray).forEach(hostname -> assertEquals(Optional.of(id1), duperModel.getApplicationId(hostname)));
}
}
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