Rampentests

Rampentests is an open-source software testing framework designed to automate ramp testing—the practice of applying gradually increasing load to a system to observe performance, stability, and capacity limits. The framework emphasizes reproducibility, scalability, and integration with development workflows.

Key features include declarative ramp scenarios defined in YAML or JSON, support for multiple protocols and target types (HTTP APIs, databases, message queues, and microservices), a pluggable adapter system for custom targets, and built-in metrics collection for latency, error rate, throughput, CPU/memory usage, and saturation indicators. It provides real-time dashboards, aggregated reports, and alerting through standard observability stacks.

Architecture consists of a core engine that interprets ramp scripts, a scenario library of reusable templates, and an adapter layer that interfaces with targets. The system supports distributed execution via agent nodes, enabling large-scale tests. It features safety controls such as rate limiting, automatic test termination on threshold breaches, and retries with backoff.

Usage typically involves defining a ramp test in a file, configuring target endpoints and ramp profiles, and running the test with a command-line interface. Outputs include structured results in JSON and HTML reports, with options for exporting to external observability platforms and CI systems.

Rampentests is distributed under the MIT license. Since its initial release, it has seen community contributions from developers in testing and performance engineering, along with ongoing development to improve protocol coverage and integration with popular orchestration tools. See also ramp testing, performance testing, load testing tools.