4584a8b570
* Updating everything except the license headers themselves * Applying ESLint rules * Manually replacing the stragglers
79 lines
1.9 KiB
TypeScript
79 lines
1.9 KiB
TypeScript
/*
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* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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* or more contributor license agreements. Licensed under the Elastic License
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* 2.0 and the Server Side Public License, v 1; you may not use this file except
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* in compliance with, at your election, the Elastic License 2.0 or the Server
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* Side Public License, v 1.
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*/
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import Chance from 'chance';
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import { FtrProviderContext } from '../ftr_provider_context';
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interface CharOptions {
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pool?: string;
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alpha?: boolean;
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numeric?: boolean;
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symbols?: boolean;
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casing?: 'lower' | 'upper';
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}
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interface StringOptions extends CharOptions {
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length?: number;
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}
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interface NumberOptions {
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min?: number;
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max?: number;
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}
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export function RandomnessProvider({ getService }: FtrProviderContext) {
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const log = getService('log');
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const seed = Date.now();
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log.debug('randomness seed: %j', seed);
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const chance = new Chance(seed);
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return new (class RandomnessService {
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/**
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* Generate a random natural number
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*
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* range: 0 to 9007199254740991
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*
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*/
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naturalNumber(options?: NumberOptions) {
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return chance.natural(options);
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}
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/**
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* Generate a random integer
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*/
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integer(options?: NumberOptions) {
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return chance.integer(options);
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}
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/**
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* Generate a random number, defaults to at least 4 and no more than 8 syllables
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*/
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word(options: { syllables?: number } = {}) {
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const { syllables = this.naturalNumber({ min: 4, max: 8 }) } = options;
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return chance.word({
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syllables,
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});
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}
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/**
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* Generate a random string, defaults to at least 8 and no more than 15 alpha-numeric characters
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*/
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string(options: StringOptions = {}) {
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return chance.string({
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length: this.naturalNumber({ min: 8, max: 15 }),
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...(options.pool === 'undefined' ? { alpha: true, numeric: true, symbols: false } : {}),
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...options,
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});
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}
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})();
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}
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