/**
 * Get isolated test output directory for current test run
 *
 * Creates a unique directory under `packages/{packageName}/.test-output/{testType}/{runId}`
 * where runId is `{timestamp}-{randomId}` to ensure isolation across parallel test runs.
 *
 * @param packageName - Name of package (e.g., 'rag-lancedb')
 * @param testType - Type of test ('unit', 'integration', 'system')
 * @param subdirs - Optional subdirectories to create within the test output directory
 * @returns Absolute path to the created directory
 *
 * @example
 * ```typescript
 * // Create isolated database directory for system tests
 * const dbPath = getTestOutputDir('rag-lancedb', 'system', 'databases', 'test-db');
 * // Result: packages/rag-lancedb/.test-output/system/20260105-143022-abc123/databases/test-db
 *
 * // Create temporary file directory for integration tests
 * const tempDir = getTestOutputDir('agent-skills', 'integration', 'temp-files');
 * // Result: packages/agent-skills/.test-output/integration/20260105-143022-def456/temp-files
 * ```
 */
export declare function getTestOutputDir(packageName: string, testType: 'unit' | 'integration' | 'system', ...subdirs: string[]): string;
/**
 * Get the base test output directory for a package
 * Useful for cleanup operations that need to remove all test output
 *
 * @param packageName - Name of package (e.g., 'rag-lancedb')
 * @returns Absolute path to packages/{packageName}/.test-output
 *
 * @example
 * ```typescript
 * const baseDir = getTestOutputBase('rag-lancedb');
 * // Result: packages/rag-lancedb/.test-output
 * ```
 */
export declare function getTestOutputBase(packageName: string): string;
/**
 * Per-suite temp directory pattern (async version)
 * Creates a single temp directory for the entire test suite,
 * with subdirectories for each test. This is 3-5x faster on Windows
 * than creating a new mkdtemp for each test.
 *
 * @param prefix - Prefix for the suite temp directory name
 * @returns Suite helper with beforeAll, afterAll, beforeEach, afterEach, and getTempDir
 *
 * @example
 * ```typescript
 * const suite = setupAsyncTempDirSuite('my-test');
 *
 * describe('my tests', () => {
 *   beforeAll(suite.beforeAll);
 *   afterAll(suite.afterAll);
 *   beforeEach(suite.beforeEach);
 *
 *   it('test 1', async () => {
 *     const tempDir = suite.getTempDir();
 *     // Use tempDir...
 *   });
 * });
 * ```
 */
export declare function setupAsyncTempDirSuite(prefix: string): {
    beforeAll: () => Promise<void>;
    afterAll: () => Promise<void>;
    beforeEach: () => Promise<void>;
    afterEach: () => Promise<void>;
    getTempDir: () => string;
};
/**
 * Per-suite temp directory pattern (sync version)
 * Creates a single temp directory for the entire test suite,
 * with subdirectories for each test. This is 3-5x faster on Windows
 * than creating a new mkdtemp for each test.
 *
 * @param prefix - Prefix for the suite temp directory name
 * @returns Suite helper with beforeAll, afterAll, beforeEach, afterEach, and getTempDir
 *
 * @example
 * ```typescript
 * const suite = setupSyncTempDirSuite('my-test');
 *
 * describe('my tests', () => {
 *   beforeAll(suite.beforeAll);
 *   afterAll(suite.afterAll);
 *   beforeEach(suite.beforeEach);
 *
 *   it('test 1', () => {
 *     const tempDir = suite.getTempDir();
 *     // Use tempDir...
 *   });
 * });
 * ```
 */
export declare function setupSyncTempDirSuite(prefix: string): {
    beforeAll: () => void;
    afterAll: () => void;
    beforeEach: () => void;
    afterEach: () => void;
    getTempDir: () => string;
};
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