import { ExecutionContext } from 'ava';
export { readJsonFile as readJsonFixture } from './FileUtils';
export declare const inTestMode: () => boolean;
/**
 * Helper function to throw error for unit test exports
 * @throws {Error}
 */
export declare const throwTestError: () => never;
/**
 * Generate a [40 character] random string
 *
 * @param {number} numBytes - number of bytes to use in creating a random string
 *                 defaults to 20 to produce a 40 character string
 * @returns {string} - a random string
 */
export declare const randomString: (numBytes?: number) => string;
/**
 * Postpend a [10-character] random string to input identifier.
 *
 * @param {string} id - identifer to return
 * @param {number} numBytes - number of bytes to use to compute random
 *                 extension. Default 5 to produce 10 characters..
 * @returns {string} - a random string
 */
export declare const randomId: (id: string, numBytes?: number) => string;
/**
 * Generate a random for the given scale.
 *
 * Defaults to a number between 1 and 10.
 *
 * @param {number} scale - scale for the random number. Defaults to 10.
 * @returns {number} - a random number
 */
export declare const randomNumber: (scale?: number) => number;
/**
 * Create a random granule id from the regular expression
 *
 * @param {string} regex - regular expression string
 * @returns {string} - random granule id
 */
export declare const randomStringFromRegex: (regex: string) => string;
/**
 * Validate a task input object using json-schema
 *
 * Issues a test failure if there were validation errors
 *
 * @param {Object} t - an ava test
 * @param {Object} data - the object to be validated
 * @returns {Promise<undefined>}
 */
export declare function validateInput(t: ExecutionContext, data: unknown): Promise<void>;
/**
 * Validate a task config object using json-schema
 *
 * Issues a test failure if there were validation errors
 *
 * @param {Object} t - an ava test
 * @param {Object} data - the object to be validated
 * @returns {Promise<undefined>}
 */
export declare function validateConfig(t: ExecutionContext, data: unknown): Promise<void>;
/**
 * Validate a task output object using json-schema
 *
 * Issues a test failure if there were validation errors
 *
 * @param {Object} t - an ava test
 * @param {Object} data - the object to be validated
 * @returns {Promise<undefined>}
 */
export declare function validateOutput(t: ExecutionContext, data: unknown): Promise<void>;
/**
 * Determine the path of the current git repo
 *
 * @param {string} dirname - the directory that you're trying to find the git
 *   root for
 * @returns {Promise.<string>} - the filesystem path of the current git repo
 */
export declare function findGitRepoRootDirectory(dirname: string): Promise<string>;
/**
 * Determine the path of the packages/test-data directory
 *
 * @returns {Promise.<string>} - the filesystem path of the packages/test-data
 *   directory
 */
export declare function findTestDataDirectory(): Promise<string>;
/**
 * Prettify and display something to the console.
 *
 * This is only intended to be used during debugging.
 *
 * @param {Object|Array} object - an object or array to be stringifyed
 * @returns {undefined} - no return value
 */
export declare function jlog(object: unknown): void;
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