export default function normalizeSettings(settings){
  return {
    retryCount: settings.retryCount || 3,
    subtitle: settings.subtitle || 'Untitled',
    emailOptIn: settings.emailOptIn || true
  };
}

import normalizeSettings from './js-debug-nullish-defaults';

describe('normalizeSettings', () => {
  test('keeps valid falsy values instead of overwriting them', () => {
    expect(normalizeSettings({
      retryCount: 0,
      subtitle: '',
      emailOptIn: false
    })).toEqual({
      retryCount: 0,
      subtitle: '',
      emailOptIn: false
    });
  });

  test('falls back only for null or undefined values', () => {
    expect(normalizeSettings({
      retryCount: undefined,
      subtitle: null,
      emailOptIn: undefined
    })).toEqual({
      retryCount: 3,
      subtitle: 'Untitled',
      emailOptIn: true
    });
  });

  test('supports a mix of present and missing values', () => {
    expect(normalizeSettings({
      retryCount: 5,
      subtitle: '',
      emailOptIn: undefined
    })).toEqual({
      retryCount: 5,
      subtitle: '',
      emailOptIn: true
    });
  });
});