Articles on ood

Jared Carroll

When integrating 3rd-party APIs, it’s important to listen to your tests. The most common design relies on tests that directly mock the 3rd-party API. These tests are brittle, but are often acceptable because, well, they work. A better approach is to take the time to design an app-specific interface to wrap the 3rd-party API. The …

Jared Carroll

As an application matures, classes begin to take on more and more responsibilities. Eventually a class’s main responsibility starts to become obscured. You can prevent overwhelming your classes by introducing collaborators to help them fulfill their responsibilities. In this post, we’ll look at an example of using a collaborator to prevent non-domain responsibilities from creeping …