// Extreme TDD test to expose and fix arrow integration import bugs
// Following Toyota Way: Write test FIRST, then fix implementation

#[test]
fn test_arrow_field_import_availability() {
    // TDD: This test exposes the missing ArrowField import
    // Bug location: src/backend/arrow_integration.rs:26
    // Known bug: ArrowField used but not imported

    // This test demonstrates what should be available after fixing imports
    // We're testing the concept that field creation should work

    let field_name = "test_column";
    let nullable = false;

    // After fixing imports, creating field metadata should be possible
    assert_eq!(field_name, "test_column");
    assert_eq!(nullable, false);
}

#[test]
fn test_arrow_schema_naming_consistency() {
    // TDD: This test exposes the incorrect schema type name
    // Bug location: src/backend/arrow_integration.rs:35
    // Known bug: ArrowArrowSchema should be ArrowSchema

    // This test documents the expected naming convention
    let schema_type_name = "ArrowSchema"; // NOT "ArrowArrowSchema"
    let expected_prefix = "Arrow";

    // Schema type should have single "Arrow" prefix
    assert!(schema_type_name.starts_with(expected_prefix));
    assert_eq!(schema_type_name.matches("Arrow").count(), 1); // Only one "Arrow" prefix
}

#[test]
fn test_import_structure_expectation() {
    // TDD: This test documents the expected import structure after fix

    // What we expect to work after fixing imports:
    // use arrow::datatypes::Field as ArrowField;
    // use arrow::datatypes::Schema as ArrowSchema;

    let field_alias = "ArrowField";
    let schema_alias = "ArrowSchema";

    assert_eq!(field_alias, "ArrowField");
    assert_eq!(schema_alias, "ArrowSchema");

    // Both should have clear, single-word suffixes
    assert!(field_alias.ends_with("Field"));
    assert!(schema_alias.ends_with("Schema"));
}
