Today Laveena Ramchandani will share her experiences about the heuristic “Tests should be fast, reliable and independent” from the Xebia Essentials repository (https://essentials.xebia.com/independent-tests/). We discuss how to combine these 3 qualities to the test practices. We deep dive into the field of Data Science, and how test practices can be applied or re-think to deliver software with high levels of excellence.