fraiseql-server 2.0.0-alpha.1

// Phase 12.3 Cycle 6: Schema Detection Tests (RED)
//! Comprehensive test specifications for automatic schema detection of encrypted fields,
//! supporting multiple encryption marks, key references, and schema evolution.

#[cfg(test)]
mod schema_detection_tests {
    // ============================================================================
    // BASIC SCHEMA DETECTION TESTS
    // ============================================================================

    /// Test detect basic #[encrypted] attribute on field
    #[test]
    #[ignore] // Requires schema detection implementation
    fn test_schema_detect_basic_encrypted_attribute() {
        // Given struct with #[encrypted] on email field
        // When schema is parsed
        // Then email field detected as encrypted
        // And field metadata includes encryption indicator
        assert!(true);
    }

    /// Test detect multiple encrypted fields
    #[test]
    #[ignore]
    fn test_schema_detect_multiple_encrypted_fields() {
        // Given struct with #[encrypted] on email, phone, ssn
        // When schema parsed
        // Then all three fields detected as encrypted
        // And non-encrypted fields (id, name) not included
        assert!(true);
    }

    /// Test ignore unencrypted fields
    #[test]
    #[ignore]
    fn test_schema_ignore_unencrypted_fields() {
        // Given struct with mix of encrypted and unencrypted fields
        // When schema parsed
        // Then only encrypted fields returned in encrypted_fields list
        // And unencrypted fields remain accessible but not in encryption config
        assert!(true);
    }

    /// Test empty struct (no encrypted fields)
    #[test]
    #[ignore]
    fn test_schema_empty_encrypted_fields() {
        // Given struct with no #[encrypted] attributes
        // When schema parsed
        // Then encrypted_fields list is empty
        // And validation reports no fields to encrypt
        assert!(true);
    }

    /// Test all fields encrypted
    #[test]
    #[ignore]
    fn test_schema_all_fields_encrypted() {
        // Given struct where every field has #[encrypted]
        // When schema parsed
        // Then all fields in encrypted list
        // And mapper encrypts entire row
        assert!(true);
    }

    // ============================================================================
    // ALTERNATIVE ENCRYPTION MARKS
    // ============================================================================

    /// Test #[sensitive] as encryption mark
    #[test]
    #[ignore]
    fn test_schema_detect_sensitive_attribute() {
        // #[sensitive] is alternative to #[encrypted]
        // Both mark field for encryption
        // #[sensitive] semantic: this data requires protection
        // Should result in field encrypted same as #[encrypted]
        assert!(true);
    }

    /// Test #[encrypt(key="...")] with key reference
    #[test]
    #[ignore]
    fn test_schema_detect_encrypt_with_key_reference() {
        // #[encrypt(key="vault/path")] specifies encryption key
        // When parsed, key reference extracted
        // Mapper uses this key from Vault for this field specifically
        // Different fields can use different keys
        assert!(true);
    }

    /// Test #[encrypt(algorithm="...")] hint
    #[test]
    #[ignore]
    fn test_schema_detect_encrypt_with_algorithm_hint() {
        // #[encrypt(algorithm="aes256-gcm")] provides algorithm hint
        // Hint used for documentation/validation
        // Actual algorithm configurable at runtime
        // Helps validate schema at startup
        assert!(true);
    }

    /// Test mixed encryption marks in same struct
    #[test]
    #[ignore]
    fn test_schema_mixed_encryption_marks() {
        // Same struct can have:
        // - Some fields with #[encrypted]
        // - Some with #[sensitive]
        // - Some with #[encrypt(key="...")]
        // All should result in field encryption
        // Key references honored where specified
        assert!(true);
    }

    /// Test invalid encryption mark rejected
    #[test]
    #[ignore]
    fn test_schema_invalid_encryption_mark_rejected() {
        // Invalid marks like #[secret], #[protected] not recognized
        // Schema validation rejects unknown marks
        // Clear error message about valid options
        assert!(true);
    }

    // ============================================================================
    // KEY REFERENCE VALIDATION
    // ============================================================================

    /// Test key reference extracted from attribute
    #[test]
    #[ignore]
    fn test_schema_key_reference_extracted() {
        // Field has #[encrypt(key="database/creds/user_email")]
        // When schema parsed, key path extracted
        // Schema includes mapping: field -> key_path
        // Available for mapper to fetch key from Vault
        assert!(true);
    }

    /// Test default key when not specified
    #[test]
    #[ignore]
    fn test_schema_default_key_when_unspecified() {
        // Field has #[encrypted] without key reference
        // Default key path used: "encryption/default"
        // Mapper fetches default key for this field
        // Consistent encryption for unspecified fields
        assert!(true);
    }

    /// Test per-field key override
    #[test]
    #[ignore]
    fn test_schema_per_field_key_override() {
        // email: #[encrypt(key="encryption/email")]
        // phone: #[encrypt(key="encryption/phone")]
        // ssn: #[encrypt(key="encryption/ssn")]
        // Each field can have different key
        // Mapper respects per-field key configuration
        assert!(true);
    }

    /// Test key reference validation at startup
    #[test]
    #[ignore]
    fn test_schema_key_reference_validation_startup() {
        // When application starts with schema
        // For each encrypted field's key reference
        // Attempt to fetch key from Vault
        // Fail fast if key missing or invalid
        // Clear error including field name and key path
        assert!(true);
    }

    /// Test missing key detection
    #[test]
    #[ignore]
    fn test_schema_missing_key_detected() {
        // Field references key "encryption/missing"
        // Key doesn't exist in Vault
        // Schema validation returns error
        // Startup blocked with actionable message
        assert!(true);
    }

    /// Test key size validation
    #[test]
    #[ignore]
    fn test_schema_key_size_validation() {
        // For AES-256 encryption, key must be 32 bytes
        // Schema validates key size from Vault
        // Reject keys that are wrong size
        // Error indicates expected vs actual size
        assert!(true);
    }

    // ============================================================================
    // SCHEMA EVOLUTION
    // ============================================================================

    /// Test adding encrypted field to existing schema
    #[test]
    #[ignore]
    fn test_schema_evolution_add_encrypted_field() {
        // Original schema: User { id, name, email (unencrypted) }
        // New schema: User { id, name, email (now #[encrypted]), phone (#[encrypted]) }
        // Old records without email/phone still work
        // New records encrypted correctly
        // Mapper handles both seamlessly
        assert!(true);
    }

    /// Test removing encryption from field
    #[test]
    #[ignore]
    fn test_schema_evolution_remove_encryption_mark() {
        // Original schema: User { id, email (#[encrypted]) }
        // New schema: User { id, email (no mark) }
        // Old records still encrypted (backward compat)
        // New records stored plaintext
        // Mapper must handle both states
        assert!(true);
    }

    /// Test changing key for field
    #[test]
    #[ignore]
    fn test_schema_evolution_key_rotation() {
        // Original: email #[encrypt(key="old_key")]
        // New: email #[encrypt(key="new_key")]
        // Old records still decrypt with old key (Vault versioning)
        // New records use new key
        // Transparent re-encryption possible
        assert!(true);
    }

    /// Test schema versioning
    #[test]
    #[ignore]
    fn test_schema_versioning_with_encryption() {
        // Schema can have version metadata
        // Version 1: { id, name, email }
        // Version 2: { id, name, email (#[encrypted]), phone }
        // Database tracks record schema version
        // Mapper applies correct decryption per version
        assert!(true);
    }

    /// Test nullable encrypted fields
    #[test]
    #[ignore]
    fn test_schema_evolution_nullable_encrypted() {
        // Field type: Option<String> with #[encrypted]
        // Some(value) gets encrypted
        // None remains None (NULL in DB)
        // Mapper handles Option correctly
        assert!(true);
    }

    // ============================================================================
    // COMPLEX TYPE SUPPORT
    // ============================================================================

    /// Test UUID field encryption
    #[test]
    #[ignore]
    fn test_schema_uuid_field_support() {
        // Field: id: Uuid with #[encrypted]
        // Converted to string, encrypted
        // Decrypted string converted back to UUID
        // Type information preserved end-to-end
        assert!(true);
    }

    /// Test DateTime field encryption
    #[test]
    #[ignore]
    fn test_schema_datetime_field_support() {
        // Field: created_at: DateTime<Utc> with #[encrypted]
        // Converted to RFC3339 string, encrypted
        // Decrypted string parsed back to DateTime
        // Precision preserved
        assert!(true);
    }

    /// Test JSON field encryption
    #[test]
    #[ignore]
    fn test_schema_json_field_support() {
        // Field: metadata: serde_json::Value with #[encrypted]
        // Serialized to JSON string, encrypted
        // Decrypted, deserialized back to JSON
        // Structure preserved
        assert!(true);
    }

    /// Test collection field encryption
    #[test]
    #[ignore]
    fn test_schema_collection_field_support() {
        // Field: tags: Vec<String> with #[encrypted]
        // Serialized to JSON array, encrypted
        // Decrypted and deserialized
        // Collection structure preserved
        assert!(true);
    }

    /// Test nested struct field encryption
    #[test]
    #[ignore]
    fn test_schema_nested_struct_encryption() {
        // Field: address: Address with #[encrypted]
        // Address struct { street, city, zip }
        // Entire struct serialized, encrypted as one
        // Decrypted and deserialized as unit
        assert!(true);
    }

    // ============================================================================
    // SCHEMA REFLECTION & INTROSPECTION
    // ============================================================================

    /// Test schema reflection API
    #[test]
    #[ignore]
    fn test_schema_reflection_api() {
        // Can query schema for encrypted fields
        // get_encrypted_fields() -> Vec<FieldInfo>
        // FieldInfo includes: name, type, key_path, algorithm
        // Used by mappers and validators
        assert!(true);
    }

    /// Test field info includes all metadata
    #[test]
    #[ignore]
    fn test_schema_field_info_complete() {
        // FieldInfo for email field includes:
        // - field_name: "email"
        // - field_type: "String"
        // - is_encrypted: true
        // - key_reference: "encryption/email"
        // - algorithm: "aes256-gcm"
        // - nullable: false
        assert!(true);
    }

    /// Test schema registration registry
    #[test]
    #[ignore]
    fn test_schema_registration_registry() {
        // Schemas can be registered by name
        // register_schema("User", user_schema)
        // Later retrieve by name
        // Used by mappers to configure encryption per type
        assert!(true);
    }

    // ============================================================================
    // SCHEMA VALIDATION TESTS
    // ============================================================================

    /// Test schema validation on startup
    #[test]
    #[ignore]
    fn test_schema_validation_startup() {
        // When application starts
        // All registered schemas validated:
        // - Encrypted field keys exist in Vault
        // - Key sizes correct (32 bytes for AES-256)
        // - Key references valid
        // Fails fast if misconfigured
        assert!(true);
    }

    /// Test schema consistency validation
    #[test]
    #[ignore]
    fn test_schema_consistency_validation() {
        // All fields with same key use same encryption settings
        // No mixing of encryption algorithms per field
        // Consistent key rotation strategy
        assert!(true);
    }

    /// Test schema with no encryption marks valid
    #[test]
    #[ignore]
    fn test_schema_no_encryption_marks_valid() {
        // Struct with no #[encrypted] attributes is valid
        // Just means no fields automatically encrypted
        // Schema validation passes
        assert!(true);
    }

    // ============================================================================
    // BACKWARDS COMPATIBILITY
    // ============================================================================

    /// Test reading unencrypted field from encrypted column
    #[test]
    #[ignore]
    fn test_schema_read_unencrypted_from_encrypted_column() {
        // Column contains encrypted data
        // Field in new schema not marked #[encrypted]
        // Attempting to read fails with clear error
        // Indicates data is encrypted but field not configured
        assert!(true);
    }

    /// Test reading encrypted field from unencrypted column
    #[test]
    #[ignore]
    fn test_schema_read_encrypted_from_unencrypted_column() {
        // Column contains plaintext data
        // Field marked #[encrypted]
        // Attempting to decrypt plaintext fails
        // Error indicates data not encrypted as expected
        assert!(true);
    }

    /// Test schema migration strategy
    #[test]
    #[ignore]
    fn test_schema_migration_strategy() {
        // Clear migration path when adding encryption:
        // 1. Add #[encrypted] to schema
        // 2. Run migration to encrypt existing data
        // 3. Deploy with new schema
        // Backwards compat during migration
        assert!(true);
    }
}