Write unit tests

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Unit testing is critical in code predictability, expected behavior and overall functionality, and should be a requirement for a networking library.

Separate unit tests per module.

Checklist:

General

• Command line arguments
• Custom hostname
• Custom port
• Different charsets
• HTTPDateFormat
• Routers
• Router Groups
• SIMD extensions (move to own repo?)

Routes

Unit tests for both static and dynamic routes.

• Paths with parameters
• Paths with wildcards
• Case sensitive paths
• Case insensitive paths
• Compression
• Different data representations
• Redirects

Responders

Unit tests for both static and dynamic responders.

• Conditional responder
• Error responder

Middleware

Unit tests for both static and dynamic middleware.

• CORS
• Files
• Metrics
• Rate Limiting
• Tracing

Cookies

• Working with middleware
• Working with routes and responders

Performance

• Throughput
• Latency
• Stress test