org.eclipse.xtext.junit4

Class TemporaryFolder

java.lang.Object

org.junit.rules.ExternalResource

org.eclipse.xtext.junit4.TemporaryFolder

All Implemented Interfaces:

org.junit.rules.MethodRule

public class TemporaryFolder
extends org.junit.rules.ExternalResource

Basically copied from TemporaryFolder which looks different in different junit versions and does not reset the private field folder on the after() event. Another change is that the folder is only created on demand. The TemporaryFolder Rule allows creation of files and folders that are guaranteed to be deleted when the test method finishes (whether it passes or fails):

 public static class HasTempFolder {
        @Rule
        public TemporaryFolder folder= new TemporaryFolder();
 
        @Test
        public void testUsingTempFolder() throws IOException {
                File createdFile= folder.newFile("myfile.txt");
                File createdFolder= folder.newFolder("subfolder");
                // ...
        }
 }
 

Since:

2.7

Constructor Summary

Constructors

Constructor and Description
TemporaryFolder()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addSourceInfo(File tempDir) generate '.createdBy' file with a stack trace so tests that leak temp folders can be identified later.
protected void	after()
protected void	before()
void	create() for testing purposes only.
File	createTempFile(String prefix, String suffix) Same signature as File.createTempFile(String, String).
void	delete() Delete all files and folders under the temporary folder.
File	getRoot()
boolean	isInitialized()
File	newFile() Returns a new fresh file with a random name under the temporary folder.
File	newFile(String fileName) Returns a new fresh file with the given name under the temporary folder.
File	newFolder() Returns a new fresh folder with a random name under the temporary folder.
File	newFolder(String... folderNames) Returns a new fresh folder with the given name under the temporary folder.

Methods inherited from class org.junit.rules.ExternalResource

apply

Methods inherited from class java.lang.Object

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

Constructor Detail

TemporaryFolder

public TemporaryFolder()

Method Detail

before

protected void before()
               throws Throwable

Overrides:

before in class org.junit.rules.ExternalResource

Throws:

Throwable

after

protected void after()

Overrides:

after in class org.junit.rules.ExternalResource

isInitialized

public boolean isInitialized()

create

public void create()
            throws IOException

for testing purposes only. Do not use.

Throws:

IOException

newFile

public File newFile(String fileName)
             throws IOException

Returns a new fresh file with the given name under the temporary folder.

Throws:

IOException

createTempFile

public File createTempFile(String prefix,
                  String suffix)
                    throws IOException

Same signature as File.createTempFile(String, String).

Throws:

IOException

newFile

public File newFile()
             throws IOException

Returns a new fresh file with a random name under the temporary folder.

Throws:

IOException

newFolder

public File newFolder(String... folderNames)

Returns a new fresh folder with the given name under the temporary folder.

newFolder

public File newFolder()
               throws IOException

Returns a new fresh folder with a random name under the temporary folder.

Throws:

IOException

addSourceInfo

protected void addSourceInfo(File tempDir)
                      throws IOException

generate '.createdBy' file with a stack trace so tests that leak temp folders can be identified later.

Throws:

IOException

getRoot

public File getRoot()

Returns:

the location of this temporary folder.

delete

public void delete()

Delete all files and folders under the temporary folder. Usually not called directly, since it is automatically applied by the Rule