org.eclipse.jgit.junit

Class LocalDiskRepositoryTestCase

java.lang.Object

org.eclipse.jgit.junit.LocalDiskRepositoryTestCase

Direct Known Subclasses:

CLIRepositoryTestCase, HttpTestCase, RepositoryTestCase

public abstract class LocalDiskRepositoryTestCase
extends Object

JUnit TestCase with specialized support for temporary local repository.

A temporary directory is created for each test, allowing each test to use a fresh environment. The temporary directory is cleaned up after the test ends.

Callers should not use RepositoryCache from within these tests as it may wedge file descriptors open past the end of the test.

A system property jgit.junit.usemmap defines whether memory mapping is used. Memory mapping has an effect on the file system, in that memory mapped files in Java cannot be deleted as long as the mapped arrays have not been reclaimed by the garbage collector. The programmer cannot control this with precision, so temporary files may hang around longer than desired during a test, or tests may fail altogether if there is insufficient file descriptors or address space for the test process.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ASSUME_UNCHANGED
protected PersonIdent	author A fake (but stable) identity for author fields in the test.
protected PersonIdent	committer A fake (but stable) identity for committer fields in the test.
static int	CONTENT
static int	CONTENT_ID
static int	LENGTH
static int	MOD_TIME
static int	SMUDGE

Constructor Summary

Constructors

Constructor and Description
LocalDiskRepositoryTestCase()

Method Summary

Methods

Modifier and Type	Method and Description
void	addRepoToClose(Repository r) Adds a repository to the list of repositories which is closed at the end of the tests
protected FileRepository	createBareRepository() Creates a new empty bare repository.
protected File	createTempDirectory(String name) Creates a unique directory for a test
protected File	createTempFile() Allocates a new unique file path that does not exist.
protected File	createUniqueTestGitDir(boolean bare) Creates a new unique directory for a test repository
protected FileRepository	createWorkRepository() Creates a new empty repository within a new empty working directory.
protected List<File>	getCeilings()
protected File	getTemporaryDirectory()
static String	indexState(Repository repo, int includedOptions) Represent the state of the index in one String.
protected String	read(File f)
protected void	recursiveDelete(File dir) Recursively delete a directory, failing the test if the delete fails.
protected int	runHook(Repository db, File hook, String... args) Run a hook script in the repository, returning the exit status.
void	setUp()
void	tearDown()
protected void	tick() Increment the author and committer times.
protected void	write(File f, String body) Write a string as a UTF-8 file.
protected File	write(String body) Create a string to a UTF-8 temporary file and return the path.

Methods inherited from class java.lang.Object

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

Field Detail

author

protected PersonIdent author

A fake (but stable) identity for author fields in the test.

committer

protected PersonIdent committer

A fake (but stable) identity for committer fields in the test.

MOD_TIME

public static final int MOD_TIME

See Also:

Constant Field Values

SMUDGE

public static final int SMUDGE

See Also:

Constant Field Values

LENGTH

public static final int LENGTH

See Also:

Constant Field Values

CONTENT_ID

public static final int CONTENT_ID

See Also:

Constant Field Values

CONTENT

public static final int CONTENT

See Also:

Constant Field Values

ASSUME_UNCHANGED

public static final int ASSUME_UNCHANGED

See Also:

Constant Field Values

Constructor Detail

LocalDiskRepositoryTestCase

public LocalDiskRepositoryTestCase()

Method Detail

setUp

public void setUp()
           throws Exception

Throws:

Exception

getTemporaryDirectory

protected File getTemporaryDirectory()

getCeilings

protected List<File> getCeilings()

tearDown

public void tearDown()
              throws Exception

Throws:

Exception

tick

protected void tick()

Increment the author and committer times.

recursiveDelete

protected void recursiveDelete(File dir)

Recursively delete a directory, failing the test if the delete fails.

Parameters:

dir - the recursively directory to delete, if present.

indexState

public static String indexState(Repository repo,
                int includedOptions)
                         throws IllegalStateException,
                                IOException

Represent the state of the index in one String. This representation is useful when writing tests which do assertions on the state of the index. By default information about path, mode, stage (if different from 0) is included. A bitmask controls which additional info about modificationTimes, smudge state and length is included.

The format of the returned string is described with this BNF:

 result = ( "[" path mode stage? time? smudge? length? sha1? content? "]" )* .
 mode = ", mode:" number .
 stage = ", stage:" number .
 time = ", time:t" timestamp-index .
 smudge = "" | ", smudged" .
 length = ", length:" number .
 sha1 = ", sha1:" hex-sha1 .
 content = ", content:" blob-data .
 

'stage' is only presented when the stage is different from 0. All reported time stamps are mapped to strings like "t0", "t1", ... "tn". The smallest reported time-stamp will be called "t0". This allows to write assertions against the string although the concrete value of the time stamps is unknown.

Parameters:

repo - the repository the index state should be determined for

includedOptions - a bitmask constructed out of the constants MOD_TIME, SMUDGE, LENGTH, CONTENT_ID and CONTENT controlling which info is present in the resulting string.

Returns:

a string encoding the index state

Throws:

IllegalStateException

IOException

createBareRepository

protected FileRepository createBareRepository()
                                       throws IOException

Creates a new empty bare repository.

Returns:

the newly created repository, opened for access

Throws:

IOException - the repository could not be created in the temporary area

createWorkRepository

protected FileRepository createWorkRepository()
                                       throws IOException

Creates a new empty repository within a new empty working directory.

Returns:

the newly created repository, opened for access

Throws:

IOException - the repository could not be created in the temporary area

addRepoToClose

public void addRepoToClose(Repository r)

Adds a repository to the list of repositories which is closed at the end of the tests

Parameters:

r - the repository to be closed

createTempDirectory

protected File createTempDirectory(String name)
                            throws IOException

Creates a unique directory for a test

Parameters:

name - a subdirectory

Returns:

a unique directory for a test

Throws:

IOException

createUniqueTestGitDir

protected File createUniqueTestGitDir(boolean bare)
                               throws IOException

Creates a new unique directory for a test repository

Parameters:

bare - true for a bare repository; false for a repository with a working directory

Returns:

a unique directory for a test repository

Throws:

IOException

createTempFile

protected File createTempFile()
                       throws IOException

Allocates a new unique file path that does not exist.

Unlike the standard File.createTempFile the returned path does not exist, but may be created by another thread in a race with the caller. Good luck.

This method is inherently unsafe due to a race condition between creating the name and the first use that reserves it.

Returns:

a unique path that does not exist.

Throws:

IOException

runHook

protected int runHook(Repository db,
          File hook,
          String... args)
               throws IOException,
                      InterruptedException

Run a hook script in the repository, returning the exit status.

Parameters:

db - repository the script should see in GIT_DIR environment

hook - path of the hook script to execute, must be executable file type on this platform

args - arguments to pass to the hook script

Returns:

exit status code of the invoked hook

Throws:

IOException - the hook could not be executed

InterruptedException - the caller was interrupted before the hook completed

write

protected File write(String body)
              throws IOException

Create a string to a UTF-8 temporary file and return the path.

Parameters:

body - complete content to write to the file. If the file should end with a trailing LF, the string should end with an LF.

Returns:

path of the temporary file created within the trash area.

Throws:

IOException - the file could not be written.

write

protected void write(File f,
         String body)
              throws IOException

Write a string as a UTF-8 file.

Parameters:

f - file to write the string to. Caller is responsible for making sure it is in the trash directory or will otherwise be cleaned up at the end of the test. If the parent directory does not exist, the missing parent directories are automatically created.

body - content to write to the file.

Throws:

IOException - the file could not be written.

read

protected String read(File f)
               throws IOException

Throws:

IOException