We have a simple stat.sh script:

    /**
     * Render xhtml output or metadata
     *
     * @param string         $mode      Renderer mode (supported modes: xhtml)
     * @param Doku_Renderer  $renderer  The renderer
     * @param array          $data      The data from the handler() function
     * @return bool If rendering was successful.
     */
    public function render($mode, Doku_Renderer &$renderer, $data) {
        if($mode != 'xhtml') return false;

        if (count($data) != 3) {
            return true;
        }

        list($syntax, $attr, $content) = $data;
        if ($syntax == 'sxh') {
            $title = $this->procTitle($attr);
            $highlight = $this->procHighlight($attr);
            $renderer->doc .= '<pre class="brush: ' . strtolower($attr . $highlight) . '"' . $title . '>' . $renderer->_xmlEntities($content) . '</pre>';
        } else {
            $renderer->file($content);
        }

        return true;
    }

#!/usr/bin/env bash

if [ -z "$1" ]
then
    DIR=./
else
    DIR=$1
fi

echo "Evaluate *.py statistics"
FILES=$(find $DIR -name '*.py' | wc -l)
LINES=$((find $DIR -name '*.py' -print0 | xargs -0 cat) | wc -l)
echo "PYTHON FILES: $FILES"
echo "PYTHON LINES: $LINES"

This script evaluate the number of python files and the number of python code lines in the files. We can use it like ./stat.sh <dir>

Then make test suits for stat.sh. We make a directory testsuit which contain test python files.

testsuit/main.py

import foo
print(foo)

testsuit/foo.py

BAR = 1
BUZ = BAR + 2

Ok! Our test suit is ready! We have 2 python files which contains 4 lines of code.

Lets write tests. We just write a shell command for testing our work.

Create file tests.bashtest:

<ccli> $ ./stat.sh testsuit/ Evaluate *.py statistics PYTHON FILES: 2 PYTHON LINES: 4

</cli>

This is our test! This is simple. Try to run it.

# install bashtest if required!
$ pip install bashtest

# run tests
$ bashtest *.bashtest
1 items passed all tests:
   1 tests in tests.bashtest
1 tests in 1 items.
1 passed and 0 failed.
Test passed.

Thats all. We wrote one test. You can write more tests if you want.

$ ls testsuit/
foo.py  main.py

$ ./stat.sh testsuit/
Evaluate *.py statistics
PYTHON FILES:        2
PYTHON LINES:        4

And run tests again:

$ bashtest *.bashtest
1 items passed all tests:
   2 tests in tests.bashtest
2 tests in 1 items.
2 passed and 0 failed.
Test passed.

You can find more .bashtest examples in the bashtest github repo. You can also write your question or report a bug here.

Happy testing!