In this episode, Paul talks to Ellen Shapiro about her approach to testing, Swift Package Manager, GraphQL, and more.
Detailed topics:

Productivity in uncertain times 
Understanding Apollo GraphQL
Is GraphQL only a query language or does it refer to an actual database?
Killer features of GraphQL: code generation, flexibility, and efficiency
How to integrate GraphQL with your app
Is it possible to use GraphQL with an existing Core Data stack?
How much work is it to migrate a server from REST to GraphQL?
Ellen's recommendation on language for backend GraphQL
A pragmatic approach to testing 
UI testing breadth vs execution time
How to add the first tests to a project
Should you write tests as you go or all at the end?
How do you write testable code?
What things must be tested?
Tips for swaying clients away from 100% test coverage
How to keep testing coverage up over time
Assertions and preconditions vs guard and fatal errors
Using Swift Package Manager and CocoaPods instead of Carthage
The SwiftPM team has been working on landing all current adoption blockers
Why video is better than text to communicate
Opinions on working from home
What is Horror Scrolling?
Should junior developers work remotely?
How to get your first iOS Development job  
What Ellen expects from this WWDC20