scaffold.js

/**
 * `node scaffold <functioName>` generates a new code file with an empty
 * function and another file with a matching test
 */

const fs = require("fs");
const _ = require("lodash");

function scaffold(functionName) {
  fs.writeFileSync(
    `${_.kebabCase(functionName)}.js`,
    scaffoldProductionCode(functionName)
  );
  fs.writeFileSync(
    `${_.kebabCase(functionName)}.test.js`,
    scaffoldTestCode(functionName)
  );
}

function scaffoldProductionCode(functionName) {
  return `const assert = require('assert')
const debug = require('debug')('${functionName}')
const _ = require('lodash')

module.exports = function ${functionName} () {

}
`;
}

function scaffoldTestCode(functionName) {
  return `/* eslint-env mocha */

const assert = require('assert')
const ${functionName} = require('./${functionName}')

describe('${functionName}', function () {
  it('${functionName}s', function () {
    assert.deepEqual(
      ${functionName}(),
      undefined)
  })
})
`;
}

module.exports = scaffold;

if (require.main === module) {
  scaffold(...process.argv.slice(2));
}