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This section enumerates the various operational tests described in the Test Plan identified from the Functional Specification. This text should form the basis of the Technial Documenation Technical Documentation for the specified test class.
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Description: On startup the broker reports the broker version number and svn build revision. This information is retrieved from the resouce resource 'qpidversion.properties' which is located via the classloader.
Input: The 'qpidversion.properties' file located on the classpath.
Output:
...
- The BRK ID is correct
- This occurs before any BRK-1002 listenting listening messages are reported.
testBrokerStartupListeningTCPDefault
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testBrokerStartupReady
Description:
The final messasge message the broker will print when it has performed all initialisation and listener startups will be to log the BRK-1004 Ready message
Input:
No input, all succesful successful broker startups will show BRK-1004 messages.
Output:
...
This suite of tests validate that the management console messages occur in correctly and according to the following format:
No Format |
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MNG-1001 : Startup MNG-1002 : Starting : <service> : Listening on port <Port> MNG-1003 : ShutingShutting down : <service> : port <Port> MNG-1004 : Ready MNG-1005 : Stopped MNG-1006 : Using SSL Keystore : <path> |
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Description:
Using the startup configuration validate that the managment management startup messasge message is logged correctly.
Input:
Standard configuration with management enabled
Output:
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No Format |
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<date> MESSAGE MNG-1002 : Starting : RMI RegistgryRegistry : Listening on port 8999 |
Constraints:
The RMI ConnectorServer and Registry log messages do not have a prescribed order
Validation Steps:
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- The MNG ID is correct
- The specified port is as specified on the commandlinecommand line.
testManagementStartupRMIConnectorServer
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- The MNG ID is correct
- There has been a MNG-1001 message
- There has been at least one MNG-1002 Listenting Listening message
- No further MNG messages are produced as part of the startup process, i.e. before broker use.
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No Format |
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<date> MNG-1003 : Shutting down : RMI RegistgryRegistry : Listening on port 8999 |
Validation Steps:
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Description:
Using the default configuration the management RMI ConnectorServer will start and so on shutdown it will log that it is shutting down.
Input:
The default configuration file.
Output:
No Format |
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<date> MNG-1003 : Shutting down : RMI ConnectorServer : Listening on port 9099
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Description:
On final shutdown the management console will report that it has stopped. All MNG logging must be complete before this message is logged.
Input:
The default configuration file.
Output:
No Format |
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<date> MNG-1005 : Stopped
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Validation Steps:
- The MNG ID is correct
- The MNG-1004 message has been logged.
- For each MNG-1002 message that was logged a MNG-1003 is also logged before this message.
- This is the last MNG message reported.
Performance Test Cases
Virtualhost Test Cases
The virtualhost test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the management console messages occur correctly and according to the following format:
No Format |
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VHT-1001 : Created : <name>
VHT-1002 : Work directory : <path>
VHT-1003 : Closed
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testVirtualhostCreation
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Description:
Testing can be performed using the default configuration. The goal is to validate that for each virtualhost defined in the configuration file a VHT-1001 Created message is provided.
Input:
The default configuration file
Output:
No Format |
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<date> VHT-1001 : Created : <name>
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Validation Steps:
- The VHT ID is correct
- A VHT-1001 is printed for each virtualhost defined in the configuration file.
- This must be the first message for the specified virtualhost.
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testVirtualhostClosure
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Description:
Testing can be performed using the default configuration. During broker shutdown a VHT-1002 Closed message will be printed for each of the configured virtualhosts. For every virtualhost that was started a close must be logged. After the close message has been printed no further logging will be performed by this virtualhost.
Input:
The default configuration file
Output:
No Format |
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<date> VHT-1002 : Closed
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Validation Steps:
- The VHT ID is correct
- This is the last VHT message for the given virtualhost.
MessageStore Tests
The MessageStore test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the MessageStore messages occur correctly and according to the following format:
No Format |
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MST-1001 : Created : <name>
MST-1002 : Store location : <path>
MST-1003 : Closed
MST-1004 : Recovery Start [: <queue.name>]
MST-1005 : Recovered <count> messages for queue <queue.name>
MST-1006 : Recovery Complete [: <queue.name>]
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testMessageStoreCreation
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Description:
During Virtualhost startup a MessageStore will be created. The first MST message that must be logged is the MST-1001 MessageStore creation.
Input:
Default configuration
Output:
No Format |
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<date> MST-1001 : Created : <name>
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Validation Steps:
- The MST ID is correct
- The <name> is the correct MessageStore type as specified in the Default configuration
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testMessageStoreStoreLocation
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Description:
Persistent MessageStores will require space on disk to persist the data. This value will be logged on startup after the MessageStore has been created.
Input:
Default configuration
Output:
No Format |
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<date> MST-1002 : Store location : <path>
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Validation Steps:
- The MST ID is correct
- This must occur after MST-1001
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testMessageStoreClose
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Description:
During shutdown the MessageStore will also cleanly close. When this has completed a MST-1003 closed message will be logged. No further messages from this MessageStore will be logged after this message
Input:
Default configuration
Output:
No Format |
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<date> MST-1003 : Closed
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Validation Steps:
- The MST ID is correct
- This is the last log message from this MessageStore
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testMessageStoreRecoveryStart
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Description:
Persistent message stores may have state on disk that they must recover during startup. As the MessageStore starts up it will report that it is about to start the recovery process by logging MST-1004. This message will always be logged for persistent MessageStores. If there is no data to recover then there will be no subsequent recovery messages.
Input:
Default persistent configuration
Output:
No Format |
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<date> MST-1004 : Recovery Start
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Validation Steps:
- The MST ID is correct
- The MessageStore must have first logged a creation event.
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testMessageStoreQueueRecoveryShowRecovered
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Description:
A persistent MessageStore may have data to recover from disk. The message store will use MST-1004 to report the start of recovery for a specific queue that it has previously persisted.
Input:
Default persistent configuration
Output:
No Format |
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<date> MST-1004 : Recovery Start : <queue.name>
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Validation Steps:
- The MST ID is correct
- This must occur after the recovery start MST-1004 has been logged.
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testMessageStoreQueueRecoveryCountEmpty
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Description:
A persistent queue must be persisted so that on recovery it can be restored independently of any messages that may be stored on it. This test verifies that the MessageStore will log that it has recovered 0 messages for persistent queues that do not have any messages.
Input:
- Default persistent configuration
- Persistent queue with no messages enqueued
Output:
Validation Steps:No Format <date> MST-1005 : Recovered 0 messages for queue <queue.name>
- The MST ID is correct
- This must occur after the queue recovery start MST-1004 has been logged.
- The count is 0
- 'messages' is correctly printed
- The queue.name is non-empty
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testMessageStoreQueueRecoveryCountPlural
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Description:
On recovery all the persistent messages that are stored on disk must be returned to the queue. MST-1005 will report the number of messages that have been recovered from disk.
Input:
- Default persistent configuration
- Persistent queue with multiple messages enqueued
Output:
Validation Steps:No Format <date> MST-1005 : Recovered <count> messages for queue <queue.name>
- The MST ID is correct
- This must occur after the queue recovery start MST-1004 has been logged.
- The count is > 1
- 'messages' is correctly printed
- The queue.name is non-empty
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testMessageStoreQueueRecoveryCountSingular
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Description:
On recovery all the persistent messages that are stored on disk must be returned to the queue. MST-1005 will report the number of messages that have been recovered from disk.
Input:
- Default persistent configuration
- A persistent queue with a single message enqueued.
Output:
Validation Steps:No Format <date> MST-1005 : Recovered 1 message for queue <queue.name>
- The MST ID is correct
- This must occur after the queue recovery start MST-1004 has been logged.
- The count is 1
- 'message' is correctly printed
- The queue.name is non-empty
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testMessageStoreQueueRecoveryComplete
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Description:
After the queue has been recovered the store will log that recovery has been completed. The MessageStore must not report further status about the recovery of this queue after this message. In addition every MST-1004 queue recovery start message must be matched with a MST-1006 recovery complete.
Input:
Default persistent configuration
Output:
No Format |
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<date> MST-1006 : Recovery Complete : <queue.name>
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Validation Steps:
- The MST ID is correct
- This must occur after the queue recovery start MST-1004 has been logged.
- The queue.name is non-empty
- The queue.name correlates with a previous recovery start
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testMessageStoreRecoveryComplete
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Description:
Once all persistent queues have been recovered and the MessageStore has completed all recovery it must logged that the recovery process has completed.
Input:
Default persistent configuration
Output:
No Format |
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<date> MST-1006 : Recovery Complete
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Validation Steps:
- The MST ID is correct
- This is the last message from the MessageStore during startup.
- This must be proceeded by a MST-1004 Recovery Start.
Connection Test Suite
The Connection test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Connection messages occur correctly and according to the following format:
No Format |
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CON-1001 : Open : Client ID <id> : Protocol Version : <version>
CON-1002 : Close
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testConnectionOpen
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Description:
When a new connection is made to the broker this must be logged.
Input:
- Running Broker
- Connecting client
Output:
Validation Steps:No Format <date> CON-1001 : Open : Client ID <id> : Protocol Version : <version>
- The CON ID is correct
- This is the first CON message for that Connection
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testConnectionClose
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Description:
When a connected client closes the connection this will be logged as a CON-1002 message.
Input:
- Running Broker
- Connected Client
Output:
Validation Steps:No Format <date> CON-1002 : Close
- The CON ID is correct
- This must be the last CON message for the Connection
- It must be preceded by a CON-1001 for this Connection
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testConnectionCloseViaManagement
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Description:
When a connected client has its connection closed via the Management Console this will be logged as a CON-1002 message.
Input:
- Running Broker
- Connected Client
- Connection is closed via Management Console
Output:
Validation Steps:No Format <date> CON-1002 : Close
- The CON ID is correct
- This must be the last CON message for the Connection
- It must be preceded by a CON-1001 for this Connection
Channel
The Channel test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Channel messages occur correctly and according to the following format:
No Format |
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CHN-1001 : Create : Prefetch <count>
CHN-1002 : Flow <value>
CHN-1003 : Close
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testChannelCreate
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Description:
When a new Channel (JMS Session) is created this will be logged as a CHN-1001 Create message. The messages will contain the prefetch details about this new Channel.
Input:
- Running Broker
- New JMS Session/Channel creation
Output:
Validation Steps:No Format <date> CHN-1001 : Create : Prefetch <count>
- The CHN ID is correct
- The prefetch value matches that defined by the requesting client.
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testChannelConsumerFlowStopped
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Description:
The Java Broker implements consumer flow control for all ack modes except No-Ack. When the client fills the prefetch then a CHN-1002 Flow Stopped messasge will be issued in the log.
Input:
- Running broker
- Message Producer to put more data on the queue than the client's prefetch
- Client that ensures that its prefetch becomes full
Output:
Validation Steps:No Format <date> CHN-1002 : Flow Stopped
- The CHN ID is correct
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testChannelConsumerFlowStarted
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Description:
The Java Broker implements consumer flow control for all ack modes except No-Ack. When the client fills the prefetch. As soon as the client starts to consume the messages (and ack them) the broker will resume the flow issuing a CHN-1002 Flow Started message to the log
Input:
- Running broker
- Message Producer to put more data on the queue than the client's prefetch
- Client that ensures that its prefetch becomes full
- The client then consumes from the prefetch to remove the flow status.
Output:
Validation Steps:No Format <date> CHN-1002 : Flow Started
- The MST ID is correct
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testChannelCloseViaConnectionClose
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Description:
When the client gracefully closes the Connection then a CHN-1003 Close message will be issued. This must be the last message logged for this Channel.
Input:
- Running Broker
- Connected Client
- Client then requests that the Connection is closed
Output:
Validation Steps:No Format <date> CHN-1003 : Close
- The MST ID is correct
- This must be the last message logged for this Channel.
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testChannelCloseViaChannelClose
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Description:
When the client requests that the Channel (JMS Session) be closed then a CHN-1003 Close message will be issued. This must be the last message logged for this Channel.
Input:
- Running Broker
- Connected Client
- Client then requests that the Channel is closed
Output:
Validation Steps:No Format <date> CHN-1003 : Close
- The MST ID is correct
- This must be the last message logged for this Channel.
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testChannelCloseViaError
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Description:
If a Connection becomes interrupted and then a CHN-1003 Close message will still be issued to signify that the Channel has been closed. This must be the last message logged for this Channel.
Input:
- Running Broker
- Connected Client
- Client then requests that the Channel is closed
Output:
Validation Steps:No Format <date> CHN-1003 : Close
- The MST ID is correct
- This must be the last message logged for this Channel.
Queue
The Queue test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Queue messages occur correctly and according to the following format:
No Format |
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QUE-1001 : Create : [AutoDelete] [Durable|Transient] [Priority:<levels>] [Owner:<name>]
QUE-1002 : Deleted
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testQueueCreatePersistent
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Description:
When a simple persistent queue is created then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- Persistent Queue is created from a client
Output:
Validation Steps:No Format <date> QUE-1001 : Create : Persistent Owner:<name>
- The QUE ID is correct
- The Persistent tag is present in the message
- The Owner is as expected
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testQueueCreatePersistentAutoDelete
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Description:
When an autodelete persistent queue is created then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- AutoDelete Persistent Queue is created from a client
Output:
Validation Steps:No Format <date> QUE-1001 : Create : AutoDelete Persistent Owner:<name>
- The QUE ID is correct
- The Persistent tag is present in the message
- The Owner is as expected
- The AutoDelete tag is present in the message
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testCreateQueuePersistentPriority
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Description:
When a persistent queue is created with a priority level then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- Persistent Queue is created from a client with a priority level
Output:
Validation Steps:No Format <date> QUE-1001 : Create : Persistent Priority:<levels> Owner:<name>
- The QUE ID is correct
- The Persistent tag is present in the message
- The Owner is as expected
- The Priority level is correctly set
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testCreateQueuePersistentAutoDeletePriority
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Description:
When an autodelete persistent queue is created with a priority level then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- An AutoDelete Persistent Queue is created from a client with priority
Output:
Validation Steps:No Format <date> QUE-1001 : Create : AutoDelete Persistent Priority:<levels> Owner:<name>
- The QUE ID is correct
- The Persistent tag is present in the message
- The Owner is as expected
- The AutoDelete tag is present in the message
- The Priority level is correctly set
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testQueueCreateTransient
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Description:
When a simple transient queue is created then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- Transient Queue is created from a client
Output:
Validation Steps:No Format <date> QUE-1001 : Create : Transient Owner:<name>
- The QUE ID is correct
- The Transient tag is present in the message
- The Owner is as expected
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testQueueCreateTransientAutoDelete
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Description:
When an autodelete transient queue is created then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- AutoDelete Transient Queue is created from a client
Output:
Validation Steps:No Format <date> QUE-1001 : Create : AutoDelete Transient Owner:<name>
- The QUE ID is correct
- The Transient tag is present in the message
- The Owner is as expected
- The AutoDelete tag is present in the message
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testCreateQueueTransientPriority
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Description:
When a transient queue is created with a priority level then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- Transient Queue is created from a client with a priority level
Output:
Validation Steps:No Format <date> QUE-1001 : Create : Transient Priority:<levels> Owner:<name>
- The QUE ID is correct
- The Transient tag is present in the message
- The Owner is as expected
- The Priority level is correctly set
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testCreateQueueTransientAutoDeletePriority
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Description:
When an autodelete transient queue is created with a priority level then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- An autodelete Transient Queue is created from a client with a priority level
Output:
Validation Steps:No Format <date> QUE-1001 : Create : AutoDelete Transient Priority:<levels> Owner:<name>
- The QUE ID is correct
- The Transient tag is present in the message
- The Owner is as expected
- The AutoDelete tag is present in the message
- The Priority level is correctly set
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testCreateQueueTransientViaManagementConsole
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Description:
Queue creation is possible from the Management Console. When a queue is created in this way then a QUE-1001 create message is expected to be logged.
Input:
- Running broker
- Connected Management Console
- Queue Created via Management Console
Output:
Validation Steps:No Format <date> QUE-1001 : Create : Transient Owner:<name>
- The QUE ID is correct
- The correct tags are present in the message based on the create options
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testQueueDelete
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Description:
An explict QueueDelete request must result in a QUE-1002 Deleted message being logged. This can be done via an explict AMQP QueueDelete method.
Input:
- Running Broker
- Queue created on the broker with no subscribers
- Client requests the queue be deleted via a QueueDelete
Output:
Validation Steps:No Format <date> QUE-1002 : Deleted
- The QUE ID is correct
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testQueueAutoDelete
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Description:
When a Client requests a temporary queue then this is represented in the Java Broker as an autodelete exclusive queue. When the client disconnects the queue will automatically deleted. This can be seen as a QUE-1002 Deleted message will be logged.
Input:
- Running Broker
- Client creates a temporary queue then disconnects
Output:
Validation Steps:No Format <date> QUE-1002 : Deleted
- The QUE ID is correct
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testQueueDeleteViaManagementConsole
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Description:
The ManagementConsole can be used to delete a queue. When this is done a QUE-1002 Deleted message must be logged.
Input:
- Running Broker
- Queue created on the broker with no subscribers
- Management Console connected
- Queue is deleted via Management Console
Output:
Validation Steps:No Format <date> QUE-1002 : Deleted
- The QUE ID is correct
Exchange
The Exchange test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Exchange messages occur correctly and according to the following format:
No Format |
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EXH-1001 : Create : [Durable] Type:<value> Name:<value>
EXH-1002 : Deleted
|
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testExchangeCreateDurable
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Description:
When a durable exchange is created an EXH-1001 message is logged with the Durable tag. This will be the first message from this exchange.
Input:
- Running broker
- Client requests a durable exchange be created.
Output:
Validation Steps:No Format <date> EXH-1001 : Create : Durable Type:<value> Name:<value>
- The EXH ID is correct
- The Durable tag is present in the message
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testExchangeCreate
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Description:
When an exchange is created an EXH-1001 message is logged. This will be the first message from this exchange.
Input:
- Running broker
- Client requests an exchange be created.
Output:
Validation Steps:No Format <date> EXH-1001 : Create : Type:<value> Name:<value>
- The EXH ID is correct
...
testExchangeDelete
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Description:
An Exchange can be deleted through an AMQP ExchangeDelete method. When this is successful an EXH-1002 Delete message will be logged. This will be the last message from this exchange.
Input:
- Running broker
- A new Exchange has been created
- Client requests that the new exchange be deleted.
Output:
Validation Steps:No Format <date> EXH-1002 : Deleted
- The EXH ID is correct
- There is a corresponding EXH-1001 Create message logged.
Binding
The Binding test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Binding messages occur correctly and according to the following format:
No Format |
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BND-1001 : Create [: Arguments : <key=value>]
BND-1002 : Deleted
|
...
testBindingCreate
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Description:
The binding of a Queue and an Exchange is done via a Binding. When this Binding is created a BND-1001 Create message will be logged.
Input:
- Running Broker
- New Client requests that a Queue is bound to a new exchange.
Output:
Validation Steps:No Format <date> BND-1001 : Create
- The BND ID is correct
- This will be the first message for the given binding
...
testBindingCreateWithArguments
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Description:
A Binding can be made with a set of arguments. When this occurs we logged the key,value pairs as part of the Binding log message. When the subscriber with a JMS Selector consumes from an exclusive queue such as a topic. The binding is made with the JMS Selector as an argument.
Input:
- Running Broker
- Java Client consumes from a topic with a JMS selector.
Output:
Validation Steps:No Format <date> BND-1001 : Create : Arguments : <key=value>
- The BND ID is correct
- The JMS Selector argument is present in the message
- This will be the first message for the given binding
...
testBindingCreateViaManagementConsole
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Description:
The binding of a Queue and an Exchange is done via a Binding. When this Binding is created via the Management Console a BND-1001 Create message will be logged.
Input:
- Running Broker
- Connected Management Console
- Use Management Console to perform binding
Output:
Validation Steps:No Format <date> BND-1001 : Create
- The BND ID is correct
- This will be the first message for the given binding
...
testBindingDelete
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Description:
Bindings can be deleted so that a queue can be rebound with a different set of values.
Input:
- Running Broker
- AMQP UnBind Request is made
Output:
Validation Steps:No Format <date> BND-1002 : Deleted
- The BND ID is correct
- There must have been a BND-1001 Create message first.
- This will be the last message for the given binding
...
testBindingDeleteViaManagementConsole
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Description:
Bindings can be deleted so that a queue can be rebound with a different set of values. This can be performed via the Management Console
Input:
- Running Broker
- Management Console connected
- Management Console is used to perform unbind.
Output:
Validation Steps:No Format <date> BND-1002 : Deleted
- The BND ID is correct
- There must have been a BND-1001 Create message first.
- This will be the last message for the given binding
Subscription
The Subscription test suite validates that the follow log messages as specified in the Functional Specification.
This suite of tests validate that the Subscription messages occur correctly and according to the following format:
No Format |
---|
SUB-1001 : Create : [Durable] [Arguments : <key=value>]
SUB-1002 : Close
|
...
testSubscriptionCreate
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Description:
When a Subscription is created it will be logged. This test validates that Subscribing to a transient queue is correctly logged.
Input:
- Running Broker
- Create a new Subscription to a transient queue/topic.
Output:
Validation Steps:No Format <date> SUB-1001 : Create
- The SUB ID is correct
...
testSubscriptionCreateDurable
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Description:
The creation of a Durable Subscription, such as a JMS DurableTopicSubscriber will result in an extra Durable tag being included in the Create log message
Input:
- Running Broker
- Creation of a JMS DurableTopicSubiber
Output:
Validation Steps:No Format <date> SUB-1001 : Create : Durable
- The SUB ID is correct
- The Durable tag is present in the message
...
testSubscriptionCreateWithArguments
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Description:
The creation of a Subscriber with a JMS Selector will result in the Argument field being populated. These argument key/value pairs are then shown in the log message.
Input:
- Running Broker
- Subscriber created with a JMS Selector.
Output:
Validation Steps:No Format <date> SUB-1001 : Create : Arguments : <key=value>
- The SUB ID is correct
- Argument tag is present in the message
...
testSubscriptionCreateDurableWithArguments
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Description:
The final combination of SUB-1001 Create messages involves the creation of a Durable Subscription that also contains a set of Arguments, such as those provided via a JMS Selector.
Input:
- Running Broker
- Java Client creates a Durable Subscription with Selector
Output:
Validation Steps:No Format <date> SUB-1001 : Create : Durable Arguments : <key=value>
- The SUB ID is correct
- The tag Durable is present in the message
- The Arguments are present in the message
...
testSubscriptionCreateQueueBrowser
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Description:
The creation of a QueueBrowser will provides a number arguments and so should form part of the SUB-1001 Create message.
Input:
- Running Broker
- Java Client creates a QueueBroweser
Output:
Validation Steps:No Format <date> SUB-1001 : Create : Arguments : <key=value>
- The SUB ID is correct
- The Arguments are present in the message
- Arguments keys include AutoClose and Browser.
...
testSubscriptionClose
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Description:
When a Subscription is closed it will log this so that it can be correlated with the Create.
Input:
- Running Broker
- Client with a subscription.
- The subscription is then closed.
Output:
Validation Steps:No Format <date> SUB-1002 : Close
- The SUB ID is correct
- There must be a SUB-1001 Create message preceding this message
- This must be the last message from the given Subscription
Performance Test Case
In addition to the performance test suite an additional performance test needs to be written that can be run with this new logging enabled and disabled so that an attempt at quantifying any impact can be made.
Test Structure
The test should perform the following actions:
- Connect a client
- Create a channel/JMS Session
- Create an exchange
- Create a queue
- Bind the exchange and queue
- Create a subscriber on the queue
- Close the Subscriber
- Close the Session
- Close the Connection
This will ensure that we hit as many of the new logging routines as possible.
If this test should also be run prior to any code changes so that our current performance can be recorded.
Risks
Testing of this nature is dependant on a lot of items that are out of the tests control such as:
- CPU scheduling
- CPU performance
- Load
- GC
As a result the test cannot be guaranteed to produce the same results each time. To mitigate this risk running the test in a loop an reporting an average value of 10-20 runs should provide a more stable response.
Leaving the broker startup/shutdown out of the test loop will help improve the tests performance and repeatability.TBC