Tagged in testing :
Eloy Gonzalez
How we standardized MariaDB in our Integration Server
Engineering at Wealthfront is centered on the idea that code should be written to facilitate testing, not the other way around. Without a staging environment to fall back on, we maximize confidence through a sophisticated, multi-layered testing strategy. While unit tests provide our most rigorous line of defense, our Integration Server is the workhorse that… Read more
Sean Amos
Automating Exhaustive Branch Coverage for Sealed Types in Kotlin
We take code correctness and code quality seriously at Wealthfront. One of the most effective ways we ensure that our code is correct is through rigorous unit testing and strong typing. In Kotlin, sealed classes and sealed interfaces offer a powerful tool to model restricted class hierarchies. They provide strong guarantees about the types in… Read more
Oliver Isaac
Shipping Containers: How We Built an Easy to Use Jenkins Pipeline for ECR
The DevOps team at Wealthfront has been in the process of migrating services to run inside containers. As part of this process we need a way to build containers using our CI/CD tool, Jenkins. While we could write a Jenkinsfile for each container image we wanted to build, we identified this was a good opportunity… Read more
Gerin Amalaraj
Speed up your Android Tests Part 2: End to End Test Filtering
End to end (E2E) tests play a crucial role in ensuring software quality and when implemented effectively, can eliminate the need for manual testing (see our engineering principles). However E2E tests are notoriously slow since they often involve navigating through multiple screens, making API calls, and running on real devices. In our previous blog post,… Read more
Grace Sun
H2 Framework: How We Test Our Automated Investing Infrastructure
At Wealthfront, we build automated investing systems that manage client portfolios with meticulous care by incorporating a large set of rules, optimizations, and input data. Testing such complex systems is inherently challenging; small code changes can interact in unexpected ways, which makes it crucial to have a robust framework that validates our investing decisions. To… Read more
Gurmeet Saran
Our Journey to Building a Scalable SQL Testing Library for Athena
Our analytics team plays a vital role in maintaining high-quality data that drives everything from key reports to experiments aimed at improving our products. Ensuring data reliability is critical, and to achieve this, we’ve built a robust SQL testing library for Athena. A strong data foundation isn’t just about accuracy—it’s about reliability. That’s why testing… Read more