API Testing
Schemathesis and Dredd both test APIs against their OpenAPI specifications. They're often mentioned in the same breath, which leads teams to think they're interchangeable. They're not. They find different bugs, in different ways, with different tradeoffs. Understanding the distinction helps you deploy the right
API Testing
Schemathesis takes your OpenAPI or GraphQL schema and automatically generates hundreds of test cases from it — including edge cases your manual test suite never thought of. It finds server crashes, unhandled exceptions, and schema violations that sit invisible in hand-written tests. This guide covers everything from basic setup to stateful
Chaos Engineering
Steadybit is a reliability testing platform that combines chaos engineering with automated discovery of your system topology. It maps your running services, detects their dependencies, and suggests reliability experiments based on what it finds. Where other chaos tools require you to know exactly what to target, Steadybit helps you discover
Chaos Engineering
Pumba is a chaos testing tool for Docker containers. It kills containers, pauses them, and injects network failures using Linux tc (traffic control) — directly on your Docker host or inside Docker Compose environments. If you run microservices locally with Docker Compose or test in Docker-based CI environments, Pumba is the
Chaos Engineering
LitmusChaos is a CNCF-graduated chaos engineering platform built natively for Kubernetes. It uses Kubernetes-native custom resources to define, run, and observe chaos experiments — no external tools, no sidecars, no proprietary agents. Chaos experiments are just YAML that runs in your cluster like any other workload. Why Chaos Engineering on Kubernetes
Chaos Engineering
Chaos Toolkit is an open-source chaos engineering tool that defines experiments as declarative JSON or YAML files. Each experiment specifies a steady-state hypothesis (what "normal" looks like), a set of fault-injection actions, and rollback activities. Chaos Toolkit verifies your hypothesis before chaos, injects faults, then verifies the hypothesis
Chaos Engineering
AWS Fault Injection Simulator (FIS) is AWS's managed chaos engineering service. It runs fault injection experiments against your AWS resources — EC2 instances, ECS tasks, RDS clusters, EKS pods, and more — without requiring agents or sidecar processes. Experiments are defined as templates in AWS, run on a schedule or
Contract Testing
Specmatic turns your OpenAPI specifications into executable contracts that work from both sides: it can run your spec as a stub server for consumer testing, and verify that your actual API implementation conforms to the spec for provider testing. One spec file, both directions — without writing a single test. The
API Testing
Dredd validates that your API implementation matches its documentation. It reads your API Blueprint or OpenAPI specification, makes real HTTP requests to your running server, and checks that the responses match what the spec promises. When your code and your docs disagree, Dredd fails — forcing you to keep them in
Testing
Semaphore CI is a hosted continuous integration and delivery platform focused on speed. Its main selling points are fast build machines and first-class support for test parallelism — both within a single job and across multiple jobs. If your test suite takes too long and you want parallel execution without complex
Testing
Drone CI is a container-native CI/CD platform that uses Docker for every step of the pipeline. Unlike CI tools that add Docker support as an afterthought, Drone was designed from the ground up around containers — each pipeline step runs in its own Docker image with complete isolation. This makes
Testing
Buildkite takes a different approach to CI/CD. Rather than running builds on Buildkite's infrastructure, you run Buildkite Agents on your own machines or cloud. Buildkite coordinates the work; your infrastructure executes it. This gives you full control over the build environment while keeping the pipeline management in