Testing
Network faults are the most common source of distributed system bugs, and also the hardest to test. A unit test can stub a database call. An integration test can verify a happy-path HTTP request. But what tests verify that your application handles a 5-second connection timeout gracefully? Or
Netcode
Multiplayer game bugs are among the hardest to reproduce — they live in the intersection of network timing, client prediction, and server authority. Testing netcode rigorously requires understanding the three core problems: lag compensation (server rewinds time to validate hit registration), rollback (clients re-simulate when authoritative state arrives), and determinism
Chaos Engineering
Toxiproxy sits between your application and a downstream service and injects network problems: latency, bandwidth limits, dropped connections, slow responses, and timeouts. Unlike infrastructure-level chaos tools, Toxiproxy works at the TCP level and is easy to control programmatically — making it ideal for integration tests that need to verify how