Testing
MQTT is the messaging backbone of most IoT systems. Lightweight, publish-subscribe, and designed for unreliable networks — it's the protocol that connects millions of devices to cloud backends. When MQTT breaks, data stops flowing, alerts don't fire, and device control fails. Testing MQTT systems requires understanding
Testing
MQTT is the backbone of most IoT systems — lightweight, broker-based, designed for unreliable networks. Testing MQTT is different from testing REST APIs: you're testing asynchronous publish/subscribe flows, quality of service levels, retained messages, and broker behavior under load. This guide covers practical MQTT testing strategies from
IoT
IoT devices fail in ways that software-only systems never do. Firmware bugs can brick hardware. Protocol mismatches cause silent data loss. Power cycling under load reveals race conditions that unit tests miss entirely. Testing IoT devices requires a different mindset and a different toolchain. This guide covers the full