Discovery
A majority of the production failures (77%) can be reproduced by a unit test.
Mentioned
Keynote: It Depends.. - Kevlin Henney
Reference Paper
Simple Testing Can Prevent Most Critical Failures: An Analysis of Production Failures in Distributed Data-Intensive Systems
Authors
Ding Yuan, Yu Luo, Xin Zhuang, Guilherme Renna Rodrigues, Xu Zhao, Yongle Zhang, Pranay U. Jain, and Michael Stumm, University of Toronto