Test Coverage Overview

Your test suite comprises 53 tests, categorized as follows:

Basic Types Tests (Procedures 1-6):

String, Integer, Float, Boolean, DateTime values.
Covers basic data types essential for TOML parsing and serialization.

Array Tests (Procedures 10-15):

Homogeneous Arrays: Integer, String, Boolean arrays.
Mixed-Type Arrays: Arrays containing multiple data types.
Empty Arrays: Ensuring empty arrays are handled correctly.

Table Tests (Procedures 20-25):

Basic Tables: Single-level tables with different data types.
Inline Tables: Compact table definitions.
Empty Tables: Handling tables without any key-value pairs.
Nested Tables: Tables within tables for hierarchical data.

Serialization Tests (Procedures 30-36):

Type-Specific Serialization: Ensures each data type serializes correctly.
Table Serialization: Handling nested and complex table structures.
Serialization Accuracy: Verifying the output matches expected TOML strings.

Error Cases (Procedures 40-44):

Invalid Data Types: Testing parser's response to incorrect data types.
Duplicate Keys: Ensuring duplicate keys are handled as per spec.
Invalid Table Keys: Validating table key formats.

TOML v1.0.0 Specification Tests (Procedures 50-60):

Multiline Strings, Literal Strings: Handling different string formats.
Numerical Formats: Integers with underscores, hexadecimal, octal, binary.
Floating Points with Underscores: Ensuring proper parsing.
DateTime Variants: Local dates, times, and datetime with offsets.
Array of Tables, Dotted Table Keys: Advanced table structures.

Additional Specification Tests (Procedures 61-66):

Infinity and NaN Handling: Parsing special floating-point values.
Offset DateTimes: Timezone-aware datetime parsing.
Quoted Keys, Whitespace Handling: Ensuring flexibility in key definitions and parsing.