Tagged in testing :

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

April 21, 2022 end-to-end testing, testing, web

Emily Shiue

Automating Data Quality Checks on External Data

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 did we end up unnecessarily sending a… Read more

September 28, 2021 automation, data quality, integration, software engineering, testing, third party

Jason Chambers

Migrating from Capybara to Puppeteer

A little over 9 months ago, Wealthfront converted 100% of our end-to-end tests from Selenium (via Capybara) to Puppeteer. The process involved converting hundreds of tests that provide coverage for just about all of Wealthfront’s product offerings on the website. This blog post will cover why we migrated away from Selenium, the process we used… Read more

June 25, 2021 capybara, end-to-end testing, puppeteer, selenium, testing, web

Adam Heimendinger

Halving iOS Test Time with Partitioning in Jenkins Pipelines

At Wealthfront, testing is core to the culture of our engineering organization and business. In fact, on the iOS team, testing is woven into our development process. We host and manage our own continuous integration (CI) pipeline on Jenkins which runs our unit and UI test suites. As most iOS developers know, UI tests take… Read more

February 05, 2021 ci, continuous-integration, ios, jenkins, parallelization, testing, ui-testing

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 android, espresso, testing

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