This is a single-file module and an example sketch to get Processing.py users started with simple unit testing and test-driven development (TDD) by adding a single tests.py file/tab.

Processing.py is Python Mode for Processing. It can be used to quickly wrap Python code together with the Processing Java API and distribute them as cross-platform sketches that run either as standalone apps or within the Processing IDE (PDE). Processing.py supports Python 2.7 running on the Jython 2.7 Python-on-Java interpreter. This includes the built-in unittest Unit Testing Framework.

This sketch demonstrates how to create and organize groups of unittest tests and run them from a sketch, for example through tests.run()

You can get started using unittest in Processing.py sketches by either:

• downloading the example sketch and modifying it, or
• adding the tests.py file to an existing Processing.py sketch and calling it with run() from the main sketch.

If not already installed, you must:

1. Download Processing 3.x
2. In Processing, install Python Mode:
   • Processing > Tools > Add Tool > Modes > Python Mode

1. Download or clone this repository.
2. Launch the example in Processing by double-clicking using_unittest.pyde
3. Modify tests.py to add tests.

1. Copy tests.py into the sketch folder, or create a new tab tests.py in PDE, and copy-paste the contents in.
2. Modify tests.py to add tests.
3. In the main sketch file/tab:
   • add import tests to the header
   • add tests.run() to setup() (or where appropriate)

This project uses semantic versioning. For the versions available, see the tags on this repository.

This project is licensed under the Unlicense - see the LICENSE file for details.

• Jeremy Douglass - Initial work

• Jonathan Feinberg
• Marco Piccolino