Javier L. Velasquez

Dummies, mocks, and in-memory fakes. Four tiers of test double, walked through on the most cross-cutting dependency in any app — authentication.

A year ago, if you had told me that today I wouldn't be writing any code, I'd have asked whether I was out of work, had broken both of my hands, or gone blind in both eyes. Six months ago, I would've…

Test as if you were the user. Reinforce your value proposition, improve feedback loops.

In an earlier article, I described the idea of a low-value test. In this article I want to elucidate the idea of "value-add" and "value proposition" in the context of testing or testing as a…

What do we mean by a "test"? So this article's title is pretty vague. What do we mean by test? Do we mean a manual test? Do we mean an automated ui test? Do we mean a unit test? In an Agile…

What do we mean by a "test"? So this article's title is pretty vague. What do we mean by test? Do we mean a manual test? Do we mean an automated ui test? Do we mean a unit test? In an Agile…

What exactly is the testing pyramid? What is the difference between an integration test and a system test? Are system tests integration tests? When should I be writing unit tests and when should I be…