edu.vub.at.actors.natives
Class DistributionTest

java.lang.Object
  junit.framework.Assert
      junit.framework.TestCase
          edu.vub.at.actors.natives.DistributionTest

All Implemented Interfaces:

junit.framework.Test

public class DistributionTest

extends junit.framework.TestCase

Field Summary

private static int	_TIMEOUT_
private boolean	testResult_
private ELVirtualMachine	virtual1_
private ELVirtualMachine	virtual2_

Fields inherited from class junit.framework.TestCase

Constructor Summary

DistributionTest()

Method Summary

protected boolean	getTestResult()
static void	main(java.lang.String[] args)
void	notestSimple()
protected void	setTestResult(boolean value)
protected void	setUp()
private ELActor	setUpActor(ELVirtualMachine host)
private void	setUpConnectionObservers()
private void	setUpSuccessTrigger(ELActor processor)
protected void	tearDown()
void	testProviderDisconnection() This test uses the when: disconnected: to detect when a far reference has become disconnected.
void	testServiceDiscovery() Uses the when: discovered: and export: as: constructs to make an object on one virtual machine accessible to another virtual machine.
void	testSubscriberDisconnection() This test uses the when: disconnected: to detect when a far reference has become disconnected.
void	testVirtualMachineDisconnection() When a virtual machine leaves the AmbientTalk JGroups channel, all virtual machines are notified of this fact by the underlying distribution layer.
void	testVirtualMachineDisconnectionRace() This test registers a dedicated listener to test the dispatching of disconnected messages.
void	testVirtualMachineDiscovery() When a virtual machine joins the AmbientTalk JGroups channel, all virtual machines are notified of this fact by the underlying distribution layer.

Methods inherited from class junit.framework.TestCase

countTestCases, createResult, getName, run, run, runBare, runTest, setName, toString

Methods inherited from class junit.framework.Assert

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, fail, fail

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

virtual1_

private ELVirtualMachine virtual1_

virtual2_

private ELVirtualMachine virtual2_

_TIMEOUT_

private static final int _TIMEOUT_

See Also:

Constant Field Values

testResult_

private boolean testResult_

Constructor Detail

DistributionTest

public DistributionTest()

Method Detail

setTestResult

protected void setTestResult(boolean value)

getTestResult

protected boolean getTestResult()

main

public static void main(java.lang.String[] args)

setUp

protected void setUp()
              throws java.lang.Exception

Throws:

java.lang.Exception

tearDown

protected void tearDown()
                 throws java.lang.Exception

Throws:

java.lang.Exception

setUpActor

private ELActor setUpActor(ELVirtualMachine host)
                    throws InterpreterException

Throws:

InterpreterException

setUpSuccessTrigger

private void setUpSuccessTrigger(ELActor processor)
                          throws java.lang.Exception

Throws:

java.lang.Exception

setUpConnectionObservers

private void setUpConnectionObservers()
                               throws java.lang.Exception

Throws:

java.lang.Exception

testVirtualMachineDiscovery

public void testVirtualMachineDiscovery()

When a virtual machine joins the AmbientTalk JGroups channel, all virtual machines are notified of this fact by the underlying distribution layer. Messages are sent to the DiscoveryManager to notify it of a new vm which may host required services and to all (far reference) listeners waiting for the appearance of that VM. This test registers a dedicated listener to test the dispatching of connected and disconnected messages to such listeners when appropriate.

testVirtualMachineDisconnection

public void testVirtualMachineDisconnection()

When a virtual machine leaves the AmbientTalk JGroups channel, all virtual machines are notified of this fact by the underlying distribution layer. Messages are sent to the DiscoveryManager and to all (far reference) listeners connected to that VM. This test registers a dedicated listener to test the dispatching of disconnected messages to such listeners when appropriate.

testVirtualMachineDisconnectionRace

public void testVirtualMachineDisconnectionRace()

This test registers a dedicated listener to test the dispatching of disconnected messages. When the time lapse betwen connection and disconnection is too small, the test may be subject to race conditions, hence we provide a version where no wait is performed, to provoke them.

testServiceDiscovery

public void testServiceDiscovery()
                          throws java.lang.Exception

Uses the when: discovered: and export: as: constructs to make an object on one virtual machine accessible to another virtual machine.

Throws:

java.lang.Exception

testProviderDisconnection

public void testProviderDisconnection()
                               throws java.lang.Exception

This test uses the when: disconnected: to detect when a far reference has become disconnected. We distinguish between two tests, depending on the role of the device that falls away. If the provider disconnects, the subscriber hosting the far reference is notified of this event through a JGroups View event which is propagated up.

Throws:

java.lang.Exception

testSubscriberDisconnection

public void testSubscriberDisconnection()
                                 throws java.lang.Exception

This test uses the when: disconnected: to detect when a far reference has become disconnected. We distinguish between two tests, depending on the role of the device that falls away. If the subscriber disconnects, no JGroups View event is propagated up, to allow disconnecting the far reference, instead the membershipNotifier must be disconnected explicitly.

Throws:

java.lang.Exception

notestSimple

public void notestSimple()