Test Reporting
JUnit XML is the lingua franca of test reporting. Originally a JUnit (Java) format, it's been adopted by every major test framework across every language. GitHub Actions, GitLab CI, Jenkins, CircleCI, and most other CI platforms can parse and display JUnit XML natively. Understanding how to generate and
Security Testing
Checkov ships with over 1,000 built-in checks — but every organization has requirements those built-ins don't cover. Naming conventions, internal tagging standards, specific CIDR allowlists, cross-resource validation — these need custom policies. Checkov supports two custom policy formats: Python classes for complex logic, and YAML for declarative attribute checks.
Testing
Unit tests verify that your Pulumi code produces the resources you intend. Policy-as-code verifies that those resources comply with organizational standards — encryption enabled, tags present, no public S3 buckets, required IAM conditions. Pulumi CrossGuard handles the second concern. CrossGuard policies run on every pulumi up and pulumi preview. They can
Security Testing
tfsec is a static security scanner purpose-built for Terraform. Where Checkov supports many IaC formats, tfsec focuses entirely on Terraform and goes deeper: it resolves variable references, evaluates module calls, and understands Terraform's type system. The result is fewer false positives on complex configurations. Originally built by Aqua
Testing
Most Terratest tutorials cover the basics: deploy a module, assert an output, destroy it. That gets you started, but production infrastructure codebases need more. Modules compose, environments differ, and running 40 sequential end-to-end tests takes hours. This guide covers the advanced Terratest patterns that make infrastructure test suites fast, maintainable,
Testing
CDK unit tests with assertions.Template are fast and require no AWS account — but they only verify the CloudFormation template you generate, not what AWS actually creates. Integration tests deploy real stacks, make real API calls, and assert on real cloud state. The @aws-cdk/integ-tests-alpha library is CDK's
Database
Goose is the most widely-used database migration tool in the Go ecosystem, but its simplicity makes it easy to ship migrations without testing them. This guide covers a complete testing strategy using testcontainers-go, Go's standard testing package, up/down migration verification, and SQL assertion patterns that integrate naturally
Database
Alembic is the standard database migration tool for SQLAlchemy applications, but its revision system is easy to break silently. This post covers a complete pytest-based testing strategy: upgrade and downgrade testing with real databases, Testcontainers for isolated environments, SQLAlchemy fixture patterns, and idempotency verification to catch the errors that only
Testing
V (vlang) has a built-in test runner that requires no external frameworks. Test files end with _test.v and contain functions starting with test_. V compiles and runs them with v test file_test.v or v test . to run all tests in a directory. The primary assertion mechanism is
Testing
D has built-in testing via unittest blocks — no framework needed for basic tests. For richer assertions and test organization, fluent-asserts provides a fluent API and dunit adds xUnit-style classes with setup/teardown. This guide covers all three approaches with practical examples. Key Takeaways D's unittest blocks are compiled
Database
Atlas brings declarative schema management to database migrations, letting you define what your schema should look like rather than how to get there. This post covers automated schema validation with atlas schema diff, lint-driven migration safety checks, CI/CD pipeline integration, and drift detection to keep your database and codebase
Testing
Crystal ships with a built-in testing framework: crystal spec. It uses an RSpec-like API with describe, it, context, before_each, after_each, and expect. No external library needed. This guide covers writing Crystal specs, using matchers, testing exceptions, and setting up CI. Key Takeaways Crystal's Spec framework is