/**
 * Fixture validation logic
 *
 * Validates fixture referential integrity and required fields before insertion.
 * Ensures that all foreign key references point to entities that exist within
 * the fixture, preventing database constraint violations.
 *
 * @see packages/server/src/__tests__/helpers/fixture-types.ts for fixture structure
 * @see packages/server/src/__tests__/helpers/fixture-loader.ts for insertion logic
 */
import type { Fixture } from './fixture-types.js';
/**
 * Validation result for successful validation
 */
export interface ValidationSuccess {
    ok: true;
}
/**
 * Validation result for failed validation
 */
export interface ValidationFailure {
    ok: false;
    errors: string[];
}
/**
 * Result of fixture validation
 */
export type ValidationResult = ValidationSuccess | ValidationFailure;
/**
 * Validate a fixture for referential integrity and required fields
 *
 * Checks:
 * 1. All charge references are valid (transactions → charges, documents → charges)
 * 2. All business references are valid (charges → businesses, transactions → businesses, documents → businesses)
 * 3. All account references are valid (transactions → accounts)
 * 4. All tax category references are valid (charges → tax categories)
 * 5. Required fields are present
 *
 * @param fixture - The fixture to validate
 * @returns Validation result with ok=true or ok=false with error list
 *
 * @example
 * ```typescript
 * const result = validateFixture(expenseScenarioA);
 * if (!result.ok) {
 *   console.error('Validation errors:', result.errors);
 *   throw new Error('Invalid fixture');
 * }
 * ```
 */
export declare function validateFixture(fixture: Fixture): ValidationResult;
/**
 * Validate a fixture and throw if invalid
 *
 * Convenience wrapper around validateFixture that throws an error
 * with a formatted message if validation fails.
 *
 * @param fixture - The fixture to validate
 * @throws {Error} If validation fails
 *
 * @example
 * ```typescript
 * // Throws if invalid
 * assertValidFixture(expenseScenarioA);
 *
 * // Continues if valid
 * await insertFixture(client, expenseScenarioA);
 * ```
 */
export declare function assertValidFixture(fixture: Fixture): asserts fixture is Fixture;