The Doctest package finds specially-formatted blocks of example code within documentation files. It then executes the code and confirms the output is correct. This can be useful as part of a testing framework or simply to ensure that documentation stays up-to-date during software development.
The package is designed for Octave but aims to be compatible with Matlab as well.
See help doctest for documention and other information.
To install on Matlab, download the doctest-matlab-x.y.z.zip file and
unzip it somewhere. Add it to your Matlab path (e.g., with the Matlab
addpath command). Type doctest doctest to have Doctest test
itself.