@alza54/eslint-config-vue/tests/index.spec.js

Strict shareable config for ESLint and TypeScript that I use for my projects

import fs from 'fs';
import path from 'path';

import eslint from 'eslint';

const defaultConfig = require('..');
const packagePath = path.resolve(__dirname, '..');

const readFixtureFile = fixtureName => {
  const fixturePath = `${packagePath}/tests/fixtures/${fixtureName}`;
  return String(fs.readFileSync(fixturePath));
};

function eslintConfigTester (fixtureName) {
  // noinspection JSCheckFunctionSignatures
  const cli = new eslint.CLIEngine({
    'cwd': packagePath,
    'baseConfig': {
      ...defaultConfig,
      'root': true,
    },
    'useEslintrc': false,
  });
  return cli.executeOnText(readFixtureFile(fixtureName));
}

describe('correct fixture', () => {
  test('correct fixture', () => {
    expect.hasAssertions();

    const lintResult = eslintConfigTester('Correct.vue');
    expect(lintResult.errorCount).toBe(0);
  });

  test('incorrect fixture', () => {
    expect.hasAssertions();

    const lintResult = eslintConfigTester('Incorrect.vue');
    expect(lintResult.errorCount).toBe(2);
  });
});