Test-Driven Data Analysis

Reference Testing with TDDA: A Guide for LLMs and Coding Bots

Posted on Wed 20 May 2026 in TDDA • Tagged with reference testing, LLMs, coding bots, gentest, pytest, unittest

Raw markdown for direct use in LLM context windows.

This post is addressed primarily to LLMs and coding agents—it was distilled by Claude from Test-Driven Data Analysis (Radcliffe, CRC Press, 2026; extra resources), the tdda source code, the documentation, and the man pages (also available as markdown). If you …

Reference Testing Exercise 2 (pytest flavour)

Posted on Thu 31 October 2019 in TDDA • Tagged with reference test, exercise, screencast, video, pytest

This exercise (video 2m 58s) shows a powerful way to run only a single test, or some subset of tests, by using the @tag decorator available in the TDDA library. This is useful for speeding up the test cycle and allowing you to focus on a single test, or a …

Reference Testing Exercise 1 (pytest flavour)

Posted on Tue 29 October 2019 in TDDA • Tagged with reference test, exercise, screencast, video, pytest

This exercise (video 8m 54s) shows how to migrate a test from using pytest directly to the exploiting the referencetest capabilities in the TDDA library. (If you do not currently use pytest for writing tests, you might prefer the unittest-flavoured version of this exercise, since unittest is in Python's standard …