eslint-plugin-jest/lib/__tests__/rules.test.js

Eslint rules for Jest

'use strict';

const fs = require('fs');

const path = require('path');

const _require = require('../'),
      rules = _require.rules;

const ruleNames = Object.keys(rules);
const numberOfRules = 32;
describe('rules', () => {
  it('should have a corresponding doc for each rule', () => {
    ruleNames.forEach(rule => {
      const docPath = path.resolve(__dirname, '../../docs/rules', `${rule}.md`);

      if (!fs.existsSync(docPath)) {
        throw new Error(`Could not find documentation file for rule "${rule}" in path "${docPath}"`);
      }
    });
  });
  it('should have the correct amount of rules', () => {
    const length = ruleNames.length;

    if (length !== numberOfRules) {
      throw new Error(`There should be exactly ${numberOfRules} rules, but there are ${length}. If you've added a new rule, please update this number.`);
    }
  });
});