/* eslint-env jest */
import { bandLabel, measure, outsideBand, type Band } from '../bands';

const title: Band = { min: 50, max: 60, unit: 'characters' };
const keyword: Band = { min: 2, max: 4, unit: 'words' };
const slug: Band = { max: 75, unit: 'characters' };

describe('the length bands of the Fix with AI fields', () => {
  it('reads as the merchant would say it', () => {
    expect(bandLabel(title)).toBe('50–60 characters');
    expect(bandLabel(slug)).toBe('up to 75 characters');
  });

  it('counts a keyword in words, like its band', () => {
    expect(measure(keyword, 'how to season a cast iron pan guide')).toBe(
      '8 words'
    );
    expect(measure(keyword, 'skillet')).toBe('1 word');
  });

  it('flags a proposal outside its band', () => {
    expect(outsideBand(title, 'x'.repeat(67))).toBe(true);
    expect(outsideBand(title, 'x'.repeat(55))).toBe(false);
    expect(outsideBand(keyword, 'cast iron skillet')).toBe(false);
    expect(outsideBand(keyword, 'how to season a cast iron pan guide')).toBe(
      true
    );
    expect(outsideBand(slug, 'short-slug')).toBe(false);
  });
});