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package pl.edu.mimuw.cloudatlas.agent;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.hasItems;
import java.util.concurrent.TimeUnit;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import pl.edu.mimuw.cloudatlas.Container;
import pl.edu.mimuw.cloudatlas.agent.modules.ModuleType;
import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.RequestStateMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.SetAttributeMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.StanikMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.StateMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.UpdateQueriesMessage;
import pl.edu.mimuw.cloudatlas.model.Attribute;
import pl.edu.mimuw.cloudatlas.model.AttributesMap;
import pl.edu.mimuw.cloudatlas.model.TestUtil;
import pl.edu.mimuw.cloudatlas.model.ValueInt;
import pl.edu.mimuw.cloudatlas.model.ValueString;
import pl.edu.mimuw.cloudatlas.model.ValueQuery;
import pl.edu.mimuw.cloudatlas.model.ValueTime;
import pl.edu.mimuw.cloudatlas.model.ZMI;
public class NewApiImplementationTests {
private NewApiImplementation api;
private MockEventBus eventBus;
@Before
public void initializeApi() throws Exception {
eventBus = new MockEventBus();
api = new NewApiImplementation(eventBus);
}
@Test
public void testGetZoneSet() throws Exception {
final Set<String> zoneSet = new HashSet();
final Container<Exception> exceptionContainer = new Container();
Thread apiThread = new Thread(() -> {
try {
zoneSet.addAll(api.getZoneSet());
} catch (Exception e) {
exceptionContainer.thing = e;
}
});
apiThread.start();
AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
assertNotNull(message);
assertEquals(ModuleType.RMI, message.getDestinationModule());
RequestStateMessage requestMessage = (RequestStateMessage) message;
ZMI root = new ZMI();
StateMessage responseMessage = new StateMessage("", ModuleType.RMI, 0, 0, root, null, null);
requestMessage.getFuture().complete(responseMessage);
apiThread.join(100);
assertFalse(apiThread.isAlive());
assertNull(exceptionContainer.thing);
assertThat(zoneSet, hasItems("/"));
}
@Test
public void testRootGetZoneAttributeValues() throws Exception {
final Container<AttributesMap> attributes = new Container();
final Container<Exception> exceptionContainer = new Container();
Thread apiThread = new Thread(() -> {
try {
attributes.thing = api.getZoneAttributeValues("/");
} catch (Exception e) {
exceptionContainer.thing = e;
}
});
apiThread.start();
AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
assertNotNull(message);
assertEquals(ModuleType.RMI, message.getDestinationModule());
RequestStateMessage requestMessage = (RequestStateMessage) message;
ZMI zmi = new ZMI();
zmi.getAttributes().add("timestamp", new ValueTime(42l));
StateMessage response = new StateMessage("", ModuleType.RMI, 0, 0, zmi, new HashMap(), null);
requestMessage.getFuture().complete(response);
apiThread.join(100);
assertFalse(apiThread.isAlive());
assertNull(exceptionContainer.thing);
assertEquals(new ValueTime(42l), attributes.thing.getOrNull("timestamp"));
}
@Test
public void testGetZoneAttributeValues() throws Exception {
final Container<AttributesMap> attributes = new Container();
final Container<Exception> exceptionContainer = new Container();
Thread apiThread = new Thread(() -> {
try {
attributes.thing = api.getZoneAttributeValues("/son");
} catch (Exception e) {
exceptionContainer.thing = e;
}
});
apiThread.start();
AgentMessage message = eventBus.events.poll(100, TimeUnit.MILLISECONDS);
assertNotNull(message);
assertEquals(ModuleType.RMI, message.getDestinationModule());
RequestStateMessage requestMessage = (RequestStateMessage) message;
ZMI zmi = new ZMI();
zmi.getAttributes().add("timestamp", new ValueTime(42l));
ZMI son = new ZMI(zmi);
zmi.addSon(son);
son.getAttributes().add("name", new ValueString("son"));
son.getAttributes().add("timestamp", new ValueTime(43l));
StateMessage response = new StateMessage("", ModuleType.RMI, 0, 0, zmi, new HashMap(), null);
requestMessage.getFuture().complete(response);
apiThread.join(100);
assertFalse(apiThread.isAlive());
assertNull(exceptionContainer.thing);
assertEquals(new ValueTime(43l), attributes.thing.getOrNull("timestamp"));
assertEquals(new ValueString("son"), attributes.thing.getOrNull("name"));
}
@Test
public void testInstallQuery() throws Exception {
String name = "&query";
String queryCode = "SELECT 1 AS one";
long timeBefore = System.currentTimeMillis();
api.installQuery(name, queryCode);
long timeAfter = System.currentTimeMillis();
assertEquals(1, eventBus.events.size());
AgentMessage message = eventBus.events.take();
assertEquals(ModuleType.STATE, message.getDestinationModule());
StanikMessage stanikMessage = (StanikMessage) message;
assertEquals(StanikMessage.Type.UPDATE_QUERIES, stanikMessage.getType());
UpdateQueriesMessage updateMessage = (UpdateQueriesMessage) stanikMessage;
Map<Attribute, Entry<ValueQuery, ValueTime>> queries = updateMessage.getQueries();
assertEquals(1, TestUtil.iterableSize(queries.keySet()));
assertEquals(new ValueQuery("SELECT 1 AS one"), queries.get(new Attribute("&query")).getKey());
long timestamp = queries.get(new Attribute("&query")).getValue().getValue();
assertTrue(timeBefore <= timestamp);
assertTrue(timestamp <= timeAfter);
}
@Test
public void testUninstallQuery() throws Exception {
String name = "&query";
long timeBefore = System.currentTimeMillis();
api.uninstallQuery(name);
long timeAfter = System.currentTimeMillis();
assertEquals(1, eventBus.events.size());
AgentMessage message = eventBus.events.take();
assertEquals(ModuleType.STATE, message.getDestinationModule());
StanikMessage stanikMessage = (StanikMessage) message;
assertEquals(StanikMessage.Type.UPDATE_QUERIES, stanikMessage.getType());
UpdateQueriesMessage updateMessage = (UpdateQueriesMessage) stanikMessage;
Map<Attribute, Entry<ValueQuery, ValueTime>> queries = updateMessage.getQueries();
assertEquals(1, TestUtil.iterableSize(queries.keySet()));
assertNull(queries.get(new Attribute("&query")).getKey());
long timestamp = queries.get(new Attribute("&query")).getValue().getValue();
assertTrue(timeBefore <= timestamp);
assertTrue(timestamp <= timeAfter);
}
@Test
public void testSetAttributeValueChange() throws Exception {
ValueInt numProcesses = new ValueInt(42l);
long timeBefore = System.currentTimeMillis();
api.setAttributeValue("/uw/khaki13", "num_processes", numProcesses);
long timeAfter = System.currentTimeMillis();
assertEquals(1, eventBus.events.size());
AgentMessage message = eventBus.events.take();
assertEquals(ModuleType.STATE, message.getDestinationModule());
StanikMessage stanikMessage = (StanikMessage) message;
assertEquals(StanikMessage.Type.SET_ATTRIBUTE, stanikMessage.getType());
SetAttributeMessage setMessage = (SetAttributeMessage) stanikMessage;
assertEquals(new Attribute("num_processes"), setMessage.getAttribute());
assertEquals(new ValueInt(42l), setMessage.getValue());
long timestamp = setMessage.getUpdateTimestamp().getValue();
assertTrue(timeBefore <= timestamp);
assertTrue(timestamp <= timeAfter);
}
}
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