Tagged in testing :
Gerin Amalaraj
Speed Up Your Android Tests: Gradle Plugin for Unit Test Filtering
Writing tests is a fundamental part of writing good software. They help us to catch bugs, be confident in our changes and serve as documentation. At Wealthfront, our Android team relies heavily on our automated test suite to maintain productivity and code quality — until we hit a snag. With our codebase maturing and our… Read more
Niu Guangyuan
Streamlining Asynchronous Programming on Android
Background Asynchronous programming plays a vital role in mobile development, ensuring that applications remain responsive to user input even while fetching data from databases or networks. At Wealthfront, we heavily rely on asynchronous programming for making network calls to the Wealthfront API server on Android. Initially, RxJava was the go-to choice for this purpose, serving… Read more
Chris Mathew
Creating Android Lint Checks: A Survival Guide
At Wealthfront, we’ve observed that the cost of resolving an issue becomes exponentially higher the later it is discovered. For example, a defect discovered at design time is far easier to resolve than one which has already reached our clients. And between those extremes, we can discover issues at code authoring, compilation, or automated test… Read more
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
Andrew Easton
Retrying e2e test suites with Jest
At Wealthfront, we pride ourselves on reliable test coverage across our codebases. However, like many engineering teams, we haven’t been able to completely eliminate flakiness from our end to end (e2e) test suites. While migrating to puppeteer certainly helped, it didn’t eliminate the problem entirely. We’ll get into what causes these flakes below, but suffice… Read more
Wealthfront Team
Automating Data Quality Checks on External Data
Written by Emily Shiue and Melissa Chen The code was simple: query the third party API, if the “ModifiedAt” date returned was more recent than ours, send a notification to our clients. We had all the unit tests, integration tests, and monitoring in place. It had been running smoothly in production for months. So how… Read more