edu.rice.cs.drjava.model.cache
Class DocumentCacheTest

java.lang.Object
  junit.framework.Assert
      junit.framework.TestCase
          edu.rice.cs.drjava.DrJavaTestCase
              edu.rice.cs.drjava.model.cache.DocumentCacheTest

All Implemented Interfaces:

Test

public class DocumentCacheTest
extends DrJavaTestCase

This used to extend GlobalModelTestCase, but now it extends just TestCase. Perhaps it should be changed back.

Field Summary

protected File

_tempDir

Fields inherited from class edu.rice.cs.drjava.DrJavaTestCase

TEST_DRJAVA_CONFIG_PROPERTY

Constructor Summary

DocumentCacheTest()

Method Summary

protected void	createModel() Instantiates the GlobalModel to be used in the test cases.
protected OpenDefinitionsDocument	openFile(File f)
void	setUp() Set up for every test.
void	tearDown() Clean up for every test case.
protected File	tempFile() Create a new temporary file in _tempDir.
protected File	tempFile(int i) Create a new temporary file in _tempDir.
void	testCacheSize() A good warmup test case.
void	testGetDDocFromCache()
void	testMemoryLeak() There used to be a memory leak where various listeners, LeafElements, and other extraneous references from the model, definitions pane, and main frame would be preventing the definitions panes/documents from being GC'd at the correct times causing the entire program to run out of heap space when working with large numbers of files.
void	testNewDocumentsInAndOutOfTheCache()
void	testNoDDocInCache()
void	testNumListeners()
void	testOldDocumentsInAndOutOfTheCache()

Methods inherited from class edu.rice.cs.drjava.DrJavaTestCase

setConfigSetting, setDocText

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, failNotEquals, failNotSame, failSame, format

Methods inherited from class java.lang.Object

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

Field Detail

_tempDir

protected File _tempDir

Constructor Detail

DocumentCacheTest

public DocumentCacheTest()

Method Detail

setUp

public void setUp()
           throws Exception

Description copied from class: DrJavaTestCase

Set up for every test.

Overrides:

setUp in class DrJavaTestCase

Throws:

Exception - This convention is mandated by JUnit.TestCase, the superclass of this class.

tearDown

public void tearDown()
              throws Exception

Description copied from class: DrJavaTestCase

Clean up for every test case. Only used in unit tests. Added because Windows would intermittently throw a java.util.concurrent.RejectedExecutionException during cleanup.

Overrides:

tearDown in class DrJavaTestCase

Throws:

Exception

createModel

protected void createModel()

Instantiates the GlobalModel to be used in the test cases.

tempFile

protected File tempFile()
                 throws IOException

Create a new temporary file in _tempDir.

Throws:

IOException

tempFile

protected File tempFile(int i)
                 throws IOException

Create a new temporary file in _tempDir. Calls with the same int will return the same filename, while calls with different ints will return different filenames.

Throws:

IOException

openFile

protected OpenDefinitionsDocument openFile(File f)
                                    throws IOException

Throws:

IOException

testCacheSize

public void testCacheSize()

A good warmup test case.

testNewDocumentsInAndOutOfTheCache

public void testNewDocumentsInAndOutOfTheCache()
                                        throws BadLocationException,
                                               IOException

Throws:

BadLocationException

IOException

testOldDocumentsInAndOutOfTheCache

public void testOldDocumentsInAndOutOfTheCache()
                                        throws BadLocationException,
                                               IOException

Throws:

BadLocationException

IOException

testGetDDocFromCache

public void testGetDDocFromCache()
                          throws BadLocationException,
                                 IOException,
                                 OperationCanceledException

Throws:

BadLocationException

IOException

OperationCanceledException

testNoDDocInCache

public void testNoDDocInCache()

testNumListeners

public void testNumListeners()

testMemoryLeak

public void testMemoryLeak()
                    throws InterruptedException,
                           IOException

There used to be a memory leak where various listeners, LeafElements, and other extraneous references from the model, definitions pane, and main frame would be preventing the definitions panes/documents from being GC'd at the correct times causing the entire program to run out of heap space when working with large numbers of files. This problem was agrivated when we added project facility and implemented the document cache (which was supposed to solve our memory problem but actually worsened it).

Adam and Jonathan went through great pains to remove these references, so don't break our work!!!

Throws:

InterruptedException

IOException