Wondering how unit testing transcribes to the DevOps culture? In this two-part article , we continue reviewing the topic that we started in the first part. Unit Tests Are Built-In Regression Tests When introducing new functionality, one of the biggest costs of manual testing (in time and dollars) is making sure that existing functionality isn't broken. That's also one of the biggest risks of introducing changes. I've written about this kind of problem before with respect to legacy code. Basically, no one wants to make changes because the risks and costs are too high. Since technology changes so rapidly, this puts your business in a precarious position. On the one hand, the cost of change is too high to take action. On the other, the price of stagnation could mount to a total loss as more agile competition edges you out. Luckily, unit testing has regression testing built right in to make sure that previous deployments still work when combined with new functionalities.


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devops,software testing,unit testing