import { PathLike } from 'node:fs';
/**
 * Resolve a given set of (user-provided) input paths to explicit file names.
 *
 * Paths referring to singular files will be returned as-is, while paths referring to directories will be recursed into
 * and the list of all deeply nested files will be returned.
 *
 * The resulting list will be filtered to only contain supported file extensions.
 *
 * @param paths The input paths.
 * @param extensions The supported file extensions.
 * @param readDirectory A function which can return the names of the files and folders in a directory (excluding '.' and '..')
 * @returns An array containing all (matching and non-directory) file names explicitly.
 */
export declare function resolveTestPaths(paths: string[], extensions: string[], readDirectory?: (path: PathLike) => Promise<string[]>): Promise<string[]>;
export declare function walkPath(path: string, predicate: (fileName: string) => boolean, readDirectory: (path: PathLike) => Promise<string[]>): Promise<string[]>;