import type { PostgresJsDatabase } from "drizzle-orm/postgres-js";
/**
 * Creates a database client connected to the test database.
 * Requires the test Postgres instance from `docker-compose.test.yml`.
 *
 * Always uses the Node.js adapter (postgres.js) since tests run in Node.
 */
export declare function createTestDb(): PostgresJsDatabase;
/**
 * Closes the shared test database client for the current process.
 */
export declare function closeTestDb(): Promise<void>;
/**
 * Truncates all non-system tables in the test database.
 */
export declare function cleanupTestDb(db: PostgresJsDatabase): Promise<void>;
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