Unit Testing Randomness

Let’s imagine hypothetically you were working on software that placed landmines in a minefield grid and you had a function that given the dimensions of a minefield, and a safe cell, you had to randomly place a certain number of landmines in the other cells of the grid. It looks something like this:

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Prioritising Test Reliability over Perfection

If you saw my talk at GTAC last year, ‘your tests aren’t flaky‘, then you’re probably aware of my view on flaky tests actually being indicative of broader application/systems problems that we should address over making our tests less flaky.

But what if you’re in a situation where you work with a system where you can’t feasibly improve the reliability? Say you’ve got a domains page that should show you a list of available domains but since it’s using an external third-party service it sometimes just shows nothing?

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(Not) Lying about Writing Code

I recently saw this quote in an article by Nikita Hasis on Medium.

“If Your Test Leaders Aren’t Telling You To Write Code, They Are Lying!
Even if it’s by omission.

There’s this argument, almost daily, about whether software testers should learn programming. I’ll jump right in. It is unimaginable that someone would tell you NOT to learn something. That’s the first, and probably shittiest lie that inexperienced testers get fed. It’s further unimaginable, and downright irresponsible to tell people not to learn something that is very clearly where a large, well-paying, and above all interesting part of the industry is heading. Wanna work on innovative, data-driven projects with smart and driven people? You probably need to pull up terminal and at least get your toes wet, y’all.

The worst part of the lie is that it imposes that coding is a difficult grind and will only cause more problems than it solves. I even saw Alister Scott’s blog post referenced as an argument against coding, ironic as it is.”

~ Nikita Hasis (Medium)

Since Medium is a walled garden that doesn’t allow you to leave a comment without creating an account I’ll leave my response here instead (where anyone is free to comment however they like).

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Handling JavaScript alerts when leaving a page with WebDriver

You’ve most probably seen the sometimes-useful-but-often-annoying browser alerts when navigating away from a page:JavaScript onbeforeunload alert

How do we deal with these using WebDriver?

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Using WebDriver to automatically check for JavaScript errors on every page (2016 edition)

Back in 2012 I wrote about how to use WebDriver to automatically check for JavaScript console errors on every page. The solution I proposed involved adding some common JavaScript to every page in your app and then checking that errors object when using WebDriver page object classes.

Fortunately since then the WebDriver project now supports checking for these errors without making any changes to your app, so if this has been stopping you doing this you can now do it quite easily.

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