comprakt-fuzz

A fuzzer for the MiniJava language

Running the fuzzer

This fuzzer only works with python2.7. A virtual environment is recommended.

Tl;dr

pip install virutalenv
virtualenv venv -p python2.7
source venv/bin/activate
python setup.py install
python -m comprakt-fuzz

Details

As a first step you can install the fuzzer with python setup.py install or alternatively with pip install . --process-dependency-links.

After installing it the fuzzer can be run with

python -m comprakt-fuzz

with the following options

optional arguments:
  -h, --help            show this help message and exit
  -o OUT_DIR, --out OUT_DIR
                        the output directory for the fuzzed files
  -n NUM                number of files that should be produced
  --vim_format          format the output files with vim
  --token               generate token list file
  --lexer               fuzz lexer test cases without caring about the syntax

Without any arguments 10 files will get generated in the directory output.

The fuzzer won't add any indentations, because adding this in the grammar isn't realistic. To get nicer looking files you can use the autoident function provided by vim. With the additional flag --vim_format every generated file will get indented by vim. Caution: This will take way longer than just generating ugly files.

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License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.