toobigdatadoc add unit tests

[mahiki]

Woulda done this sooner, but I didn't know how to use pytest, import modules with main(), incorporating poetry, etc.

Basically you are doing this:

# ../repo/python-dev/pytest/tests/test_unit.py

import pytest
import os

# test that pytest tmp directory is empty
# use the system tmp directory base in a test
def test_unit(tmp_path):
    tmp_dir = tmp_path
    system_temp = os.environ['TMPDIR']

    print("\n\tsystem tmp directory: {}".format(system_temp))
    print("\n\ttmp_path for this test run: {}".format(tmp_dir))

    assert len(os.listdir(tmp_dir)) == 0

poetry run pytest --capture=no tests/test_unit.py

# ==================================== test session starts =====================================
# platform darwin -- Python 3.9.10, pytest-7.1.2, pluggy-1.0.0
# rootdir: $HOME/repo/python-dev/desertislandutils
# collected 1 item

# tests/test_unit.py
#   system tmp directory: /var/folders/sq/4qxp1asdfasdf4kfm0000gn/T/

#   tmp_path for this test run: /private/var/folders/sq/4qxpasdfasdfddkfm0000gn/T/pytest-of-segovia/pytest-17/test_unit0
# .
# ===================================== 1 passed in 0.00s ======================================

[mahiki]

This been done now long time. https://github.com/mahiki/desertislandutils/blob/main/tests/toobigdatadoc/test_too.py