How do you handle testing and debugging in a microservices architecture during software development?

I'm currently working on a project in a lead generation agency that uses a microservices architecture, which brings a lot of flexibility and scalability to our development. However, we're running into some challenges with effectively testing and debugging the different services. I'm curious about strategies for unit testing, integration testing, and end-to-end testing in this kind of environment. How do you ensure proper communication between services and handle failures gracefully? If anyone has experience with tools or frameworks that make debugging across multiple services easier, I'd love to hear your recommendations. I'd also appreciate any insights on managing dependencies, ensuring data consistency, or automating tests in a microservices setup.