Label to help with jest snapshots

label.js

// Jests dont write to file in chron order, prefix with number helps
let count = 0;

const label = (tmpl, ...val) => {
  val.reverse();
  return `${
    count++ // eslint-disable-line
  }. ${
    tmpl.reduce((p, c) => p + c + (val.length ? val.pop() : ''), '')
  }`;
};

const labelReset = (...args) => {
  count = 0;
  return label(...args);
};

export { label, labelReset };

// test
import { label, labelReset } from './';

describe('ofs-dev-tools/src/label', () => {
  it('should have expected output', () => {
    expect([
      label`the start A:${'a'} B:${'b'}...`,
      label`...done C:${'c'} D:${'d'}`,
      labelReset`new start...`,
      label`...done`,
    ]).toMatchSnapshot();
  });
});