| # Temp Directory Utilities |
| |
| The two basic temp directory classes are: |
| |
| - [DirTestWatcher](../exec/java-exec/src/test/java/org/apache/drill/test/DirTestWatcher.java) |
| - [BaseDirTestWatcher](../exec/java-exec/src/test/java/org/apache/drill/test/BaseDirTestWatcher.java) |
| |
| These classes are used to create temp directories for each of your unit tests. The advantage to using |
| these temp directory classes are: |
| |
| - All files are deleted after a unit test completes. This prevents a build machine being polluted with a |
| bunch of unit test files. |
| - Each unit test outputs its files to a unique well defined location. This makes it easy to find files |
| for debugging. Also since each temp directory is unique, it prevents multiple unit test runs from interferring |
| with one another on a build machine. |
| |
| For examples on how to use these classes, please read the javadoc for each class. |
