org.junit.rules
Class TemporaryFolder

java.lang.Object
  org.junit.rules.ExternalResource
      org.junit.rules.TemporaryFolder

All Implemented Interfaces:

TestRule

public class TemporaryFolder
extends ExternalResource

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");
                // ...
        }
 }
 

Constructor Summary

TemporaryFolder()

Method Summary

protected void	after() Override to tear down your specific external resource.
protected void	before() Override to set up your specific external resource.
void	create() for testing purposes only.
void	delete() Delete all files and folders under the temporary folder.
File	getRoot()
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

Description copied from class: ExternalResource

Override to set up your specific external resource.

Overrides:

before in class ExternalResource

Throws:

Throwable

after

protected void after()

Description copied from class: ExternalResource

Override to tear down your specific external resource.

Overrides:

after in class ExternalResource

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

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

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