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Chris Mathew

Designing a harness for readable, thorough Android tests

At Wealthfront, we are committed to automation – both in the products we build, and in how we ensure quality. In this post we’ll explore how our automated test harness enables Android developers to quickly build tests for almost any scenario. Part 1: Writing “fluent” Espresso test code Since they are designed to operate in… Read more

September 14, 2022 , , , , ,

Spencer Miskoviak

Building Wealthfront’s multi-platform design system

Over the past two years at Wealthfront we’ve been building a design system from the ground up across all our frontend platforms: Android, iOS, and web. If you’re a Wealthfront client you may have noticed sweeping, iterative visual changes across our apps as we introduced new components and migrated features to adopt these components. At… Read more

May 10, 2022 , , ,

Chris Mathew

Targeting Android SDK 30

When Google announced that Play Store apps must target SDK 30 by August, our team started investigating what it would take to meet this requirement. Now, with our migration to SDK 30 complete, we’d like to detail the changes our team made. This is not meant to be an exhaustive migration guide – but hopefully… Read more


Chris Mathew

Espresso-friendly Bottom Sheet interactions

Like many other integration testing frameworks, Android’s Espresso provides a management layer for asynchronous operations. Correct usage of this layer allows the test author to treat long-running activities as if they were synchronous, resulting in reliable UI tests. In this post, we’ll describe how we used Espresso to build reliable tests for one such behavior… Read more

December 21, 2020 , ,

Naren Manoharan

Visual Regression Testing on Android

Recently, we found visual regressions in our app after we shipped the app to production on the play store and that is one of the last places you want to catch a bug. We wanted to improve when we detect these bugs and address them way earlier in the development process. There are a couple… Read more

June 12, 2020 ,

Naren Manoharan

Android App Modularization at Wealthfront (Part 3)

In the previous blog post, we looked at how we started with modularization and refactored our existing code into the legacy module which was ready to be modularized into smaller infrastructure and feature modules. In this blog post, we will go in detail about how we’d refactored our infrastructure modules with the help of interfaces. … Read more