Engineering Blog

End-to-end-ish tests using fake HTTP in Flutter

Sam Moore | Principal Engineer, Betterment — Wed, 23 Feb 2022 13:55:21 GMT

We write tests in order to prove our features work as intended and we run those tests consistently to prove that our features don't stop working as intended.

Stability through Randomness

brandon.trautmann@betterment.com (Brandon Trautmann | Senior Mobile Engineer) — Thu, 03 Feb 2022 23:43:36 GMT

We only recently enabled test randomization and as a result found that some of our tests were failing. Through fixing the tests, we learned lessons that could help others have a less painful migration themselves.

Finding a Middle Ground Between Screen and UI Testing in Flutter

caleb.donoho@betterment.com (Caleb Donoho | Software Engineer) — Wed, 12 Jan 2022 18:26:10 GMT

We outline the struggles we had testing our flutter app, our approaches to those challenges, and the solutions we arrived at to solve those problems.

Why (And How) Betterment Is Using Julia

Dan Felicetta | Former Staff Engineer, Betterment — Sun, 14 Nov 2021 22:51:19 GMT

Betterment is using Julia to solve our own version of the “two-language problem."

Introducing “Delayed”: Resilient Background Jobs on Rails

Nathan Griffith | Senior Staff Engineer, Betterment — Tue, 07 Sep 2021 04:00:00 GMT

In the past 24 hours, a Ruby on Rails application at Betterment performed somewhere on the order of 10 million asynchronous tasks.

Focusing on What Matters: Using SLOs to Pursue User Happiness

Sophia Russell | Staff Engineer, Betterment — Wed, 04 Aug 2021 04:00:00 GMT

Proper reliability is the greatest operational requirement for any service. If the service doesn’t work as intended, no user (or engineer) will be happy. This is where SLOs come in.

Finding and Preventing Rails Authorization Bugs

OMAR | Staff Security Engineer, Betterment — Thu, 27 May 2021 04:00:00 GMT

This article walks through finding and fixing common Rails authorization bugs.

Using Targeted Universalism To Build Inclusive Features

Jesse Harrelson | Mobile Engineering Manager, Betterment — Tue, 10 Nov 2020 05:00:00 GMT

The best products are inclusive at every stage of the design and engineering process. Here's how we turned a request for more inclusion into a feature all Betterment customers can benefit from.

Guidelines for Testing Rails Applications

Greg Sadowski | Staff Engineer, Betterment — Thu, 24 Oct 2019 04:00:00 GMT

Discusses the different responsibilities of model, request, and system specs, and other high level guidelines for writing specs using RSpec & Capybara.

WebValve – The Magic You Need for HTTP Integration

Sam Moore | Principal Engineer, Betterment — Fri, 26 Apr 2019 04:00:00 GMT

Struggling with HTTP integrations locally? Use WebValve to define HTTP service fakes and toggle between real and fake services in non-production environments.