Swift

Swift is a modern general-purpose programming language.

Reference Files

Load these files as needed for specific topics:

• references/swift-configuration.md - Swift Configuration: reading config from environment variables, files, CLI arguments; provider hierarchy, namespacing, hot reloading, secret handling
• references/swift-log.md - Swift Log logging API: log levels, structured logging, best practices for libraries, metadata, custom handlers
• references/swift-otel.md - Swift OTel: OpenTelemetry backend for server apps (preferred for Linux); OTLP export for logs, metrics, tracing; framework integration
• references/swift-testing.md - Swift Testing framework: @Test macro, #expect/#require assertions, traits, parameterized tests, test suites, parallel execution, XCTest migration
• references/debugging.md - Debugging tips: Terminal UI on Linux (alternate screen buffer), GitHub Actions log analysis

Swift Testing Test Names

Prefer backtick-escaped, sentence-style test function names so the test description lives in the function name: