Ross W. Drew - Software Developer

A Pitest badge without a Pitest service

Tue, 13 Oct 2026 10:00:00 +0000

In the past I wrote a complex & deeply flawed, hosted Python service to display a GitHub badge for Pitest mutation coverage. These days, there’s a far simpler method…

Line coverage tells you which code your tests run. Mutation testing tells you whether they’d notice if that code were wrong. Mutation testing makes small changes (“mutants”) to your bytecode, flipping a < to <=, deleting a method call, returning true instead of false and reruns your tests against each one. A mutant your tests catch is killed; one they don’t...

Emulating Op-Codes

Mon, 01 Oct 2018 17:00:00 +0000

Introduction

The largest personal project I am currently undertaking, is that of an emulator. The main goal was to come up with a larger product that I am completely in control of and can experiment with tools and methods to become a better programmer. Sub goals include learning something about the machines I grew up with and maybe, perhaps getting to the point where I’ve written my own retro NES emulator. Long term, pie in the sky goal was to create a well designed, highly tested, accessable, open-source, pluggable, multi-emulator.

First and foremost though, I wanted to strongly...

Pitest CI Integration

Wed, 20 Sep 2017 20:00:00 +0000

Pitest

Pitest is a mutation testing product written by Henry Coles. It essentially mutates your code to see how many mutations are caught by your unit tests. It’s a great tool for analysing the robustness of unit tests.

The Problem

I have an open source product that I’m working on, an emulator called EmuRox. I created it as a larger product I could test technologies and approaches out on. I’ve been running Pitest on it for a while to improve my pretty comprehensive tests. The problem is that no one that I’ve found has created...

Introductions

Mon, 17 Apr 2017 00:12:00 +0000

Jeckyll

I’ve now played around with a few blogging sites and now it’s time for Jeckyll. I want something I can test locally and migrate to new styles with minimum effort, this seems to fit the bill.

So this is me, Ross. Hi!

I am a Software Developer, primarily in Java.

/** * My theme will need to have decent code highlighting for code samples */ public class HelloWorldCaller { public static void...