org.apache.derbyTesting.functionTests.tests.multi

Class StressMultiTest

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

org.apache.derbyTesting.junit.BaseTestCase

org.apache.derbyTesting.junit.BaseJDBCTestCase

org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest

All Implemented Interfaces:

junit.framework.Test

public class StressMultiTest
extends BaseJDBCTestCase

Stress-test running any number of threads performing "random" operations on a database for any number of minutes. Default values are 10 threads for 10 minutes. The operations are create, select, insert, update and rollback. To test with a different number of threads and minutes set up a suite by calling getSuite(int threads, int minutes). See StressMulti10x1.java for an example. To run only the embedded run, use embeddedSuite(int threads, int minutes). The test will fail on the first exception thrown by any of the treads and this will be the reported cause of failure and the threads will be stopped. Other threads may throw exceptions before they have time to stop and these can be found in the log, but they will not be reported as errors or failures by the test. SQLExceptions are reported as failures and any other exceptions as errors. Some SQLExceptions are ignored by the test, but will show up in the log.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) class	StressMultiTest.StressMultiRunnable This subclass contains the actual stresstests that will be run in multiple threads.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	complete Setting this will cause the threads to terminate normally.
private static boolean	DEBUG Force verbosity, used for debugging.
private static int	MINUTES The number of minutes the test will run.
private java.util.Random	rnd
private java.lang.Thread[]	threads
private static int	THREADS The number of threads the test will run.
private static java.lang.String	THREADSMINUTES
private java.lang.Throwable	thrown This holds the first throwable thrown by by any of the threads, and will thrown as the cause of failure for the fixture.

Fields inherited from class org.apache.derbyTesting.junit.BaseTestCase

DEFAULT_DB_DIR, DERBY_LOG, ERRORSTACKTRACEFILE

Constructor Summary

Constructors

Constructor and Description
StressMultiTest(java.lang.String s)

Method Summary

Modifier and Type	Method and Description
static junit.framework.Test	embeddedSuite(int threads, int minutes) Get at testsuite that runs only the embedded suite with the given number of threads for the given number of minutes.
private void	handleException(java.lang.Throwable t, java.lang.String message)
private static junit.framework.Test	newCleanDatabase(junit.framework.Test s)
protected void	runTestCaseRunnables(StressMultiTest.StressMultiRunnable[] runnables)
void	setUp()
static junit.framework.Test	suite() Set up the testsuite to run in embedded, client and encryption mode.
static junit.framework.Test	suite(int threads, int minutes) Get a testsuite that runs all the 3 runs (embedded, client and encrypted) with the given number of threads for the given number of minutes.
void	tearDown() Tear down this fixture, sub-classes should call super.tearDown().
void	testStressMulti() This is the actual fixture run by the JUnit framework.

Methods inherited from class org.apache.derbyTesting.junit.BaseJDBCTestCase

assertCallError, assertCheckTable, assertCompileError, assertEquals, assertEquals, assertEquals, assertEquivalentDataType, assertErrorCode, assertGetIntError, assertNextError, assertPreparedStatementError, assertSQLExceptionEquals, assertSQLState, assertSQLState, assertStatementError, assertStatementError, assertStatementError, assertStatementError, assertStatementErrorUnordered, assertTableRowCount, assertUpdateCount, assertUpdateCount, assertWarning, checkAllConsistency, checkEstimatedRowCount, closeStatement, commit, createStatement, createStatement, createStatement, dropTable, dropTable, dropView, dropView, emptyStatementCache, getClientTransactionID, getConnection, getDatabaseProperty, getLastSQLException, initializeConnection, openConnection, openDefaultConnection, openDefaultConnection, openDefaultConnection, openUserConnection, prepareCall, prepareCall, prepareCall, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, rollback, runBare, runBareOverridable, runScript, runScript, runSQLCommands, setAutoCommit, usingDB2Client, usingDerbyNetClient, usingEmbedded

Methods inherited from class org.apache.derbyTesting.junit.BaseTestCase

alarm, assertDirectoryDeleted, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertExecJavaCmdAsExpected, assertLaunchedJUnitTestMethod, assertLaunchedJUnitTestMethod, assertSecurityManager, assertThrowableEquals, currentDirectory, execJavaCmd, execJavaCmd, fail, getClassVersionMajor, getEmmaJar, getFailureFolder, getFilesWith, getJavaExecutableName, getSystemProperty, getTestConfiguration, getTestResource, hasInterruptibleIO, isCVM, isIBMJVM, isJ9Platform, isJava5, isJava7, isJava8, isPhoneME, isPlatform, isSunJVM, isWindowsPlatform, openTestResource, println, printStackTrace, readProcessOutput, removeDirectory, removeDirectory, removeFiles, removeSystemProperty, runsWithEmma, runsWithJaCoCo, setSystemProperty, sleep, sleepAtLeastOneTick, traceit

Methods inherited from class junit.framework.TestCase

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, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runTest, setName, toString

Methods inherited from class java.lang.Object

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

Field Detail

THREADS

private static int THREADS

The number of threads the test will run. Default is 10

MINUTES

private static int MINUTES

The number of minutes the test will run. Default is 10.

THREADSMINUTES

private static final java.lang.String THREADSMINUTES

See Also:

Constant Field Values

DEBUG

private static boolean DEBUG

Force verbosity, used for debugging. Will print alot of information to the screen.

thrown

private java.lang.Throwable thrown

This holds the first throwable thrown by by any of the threads, and will thrown as the cause of failure for the fixture.

threads

private java.lang.Thread[] threads

rnd

private java.util.Random rnd

complete

private boolean complete

Setting this will cause the threads to terminate normally.

Constructor Detail

StressMultiTest

public StressMultiTest(java.lang.String s)

Method Detail

suite

public static junit.framework.Test suite()

Set up the testsuite to run in embedded, client and encryption mode. Default run is 10 threads for 10 minutes in each mode

suite

public static junit.framework.Test suite(int threads,
                                         int minutes)

Get a testsuite that runs all the 3 runs (embedded, client and encrypted) with the given number of threads for the given number of minutes.

Parameters:

threads -

minutes -

Returns:

suite after changing THREADS and MINUTES

embeddedSuite

public static junit.framework.Test embeddedSuite(int threads,
                                                 int minutes)

Get at testsuite that runs only the embedded suite with the given number of threads for the given number of minutes.

Parameters:

threads -

minutes -

newCleanDatabase

private static junit.framework.Test newCleanDatabase(junit.framework.Test s)

setUp

public void setUp()
           throws java.lang.Exception

Overrides:

setUp in class junit.framework.TestCase

Throws:

java.lang.Exception

tearDown

public void tearDown()
              throws java.lang.Exception

Description copied from class: BaseJDBCTestCase

Tear down this fixture, sub-classes should call super.tearDown(). This cleanups & closes the connection if it is open and any statement objects returned through the utility methods.

Overrides:

tearDown in class BaseJDBCTestCase

Throws:

java.lang.Exception

testStressMulti

public void testStressMulti()
                     throws java.lang.Throwable

This is the actual fixture run by the JUnit framework. Creates all the runnables we need and pass them on to runTestCaseRunnables. If any exception was thrown when they are done it is thrown for JUnit to catch and handle normally.

Throws:

java.lang.Throwable

runTestCaseRunnables

protected void runTestCaseRunnables(StressMultiTest.StressMultiRunnable[] runnables)

handleException

private void handleException(java.lang.Throwable t,
                             java.lang.String message)