// Extreme TDD test to expose and fix documentation backticks issues
// Following Toyota Way: Write test FIRST, then fix implementation

#[test]
fn test_documentation_backticks_requirement() {
    // TDD: This test exposes the missing backticks in documentation issue
    // Known bug: Multiple clippy warnings "item in documentation is missing backticks"
    // Pattern: Code identifiers in doc comments need backticks for proper formatting

    // Common patterns that need backticks:
    let code_identifiers = vec![
        "fn function_name",  // Function names
        "struct StructName", // Struct names
        "enum EnumName",     // Enum names
        "Result<T>",         // Generic types
        "Option<String>",    // Type expressions
        "Vec<i32>",          // Collection types
    ];

    // These should be formatted as:
    let properly_formatted = vec![
        "`fn function_name`",  // Function names with backticks
        "`struct StructName`", // Struct names with backticks
        "`enum EnumName`",     // Enum names with backticks
        "`Result<T>`",         // Generic types with backticks
        "`Option<String>`",    // Type expressions with backticks
        "`Vec<i32>`",          // Collection types with backticks
    ];

    assert_eq!(code_identifiers.len(), properly_formatted.len());

    // This test documents the pattern for fixing documentation
    for (unformatted, formatted) in code_identifiers.iter().zip(properly_formatted.iter()) {
        assert!(!unformatted.contains('`'));
        assert!(formatted.contains('`'));
        assert!(formatted.starts_with('`'));
        assert!(formatted.ends_with('`'));
    }
}

#[test]
fn test_documentation_improvement_strategy() {
    // TDD: This test documents the systematic approach for doc improvements

    // Strategy: Find documentation comments with code identifiers and add backticks
    // Pattern: /// This function returns Result<String> -> /// This function returns `Result<String>`

    let doc_patterns_needing_backticks = vec![
        "Returns Result<T>",           // Generic return types
        "Takes Vec<i32> as input",     // Parameter types
        "Uses HashMap for storage",    // Data structure references
        "Implements Display trait",    // Trait references
        "Creates new Parser instance", // Type instantiation
    ];

    assert_eq!(doc_patterns_needing_backticks.len(), 5);

    // Each pattern contains type/code identifiers that should have backticks
    for pattern in &doc_patterns_needing_backticks {
        assert!(!pattern.is_empty());
        // After fix, these would contain backticks around code elements
    }
}

#[test]
fn test_clippy_doc_warning_resolution() {
    // TDD: This test verifies our understanding of clippy's missing_doc_backticks lint

    // Clippy warning: "item in documentation is missing backticks"
    // Means: Code identifiers in /// comments should be wrapped in backticks

    let lint_name = "missing_doc_backticks";
    let warning_message = "item in documentation is missing backticks";

    assert_eq!(lint_name, "missing_doc_backticks");
    assert!(warning_message.contains("backticks"));

    // Solution: Systematically add backticks to code identifiers in documentation
    let solution_approach = "add_backticks_to_code_identifiers";
    assert_eq!(solution_approach, "add_backticks_to_code_identifiers");
}
