numerica/packages/core/src/locales/variants/de-DE/groups.test.ts

import getNumberName from '../../../index';
import getLocalizedNumberName from './index';

describe('Number group conversion', () => {
  describe('0 in hundreds place', () => {
    describe('0 in tens place', () => {
      describe.each`
        ones | onesName
        ${0} | ${'zero'}
        ${1} | ${'ein'}
        ${2} | ${'zwei'}
        ${3} | ${'drei'}
        ${4} | ${'vier'}
        ${5} | ${'fünf'}
        ${6} | ${'sechs'}
        ${7} | ${'sieben'}
        ${8} | ${'acht'}
        ${9} | ${'neun'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        it(`converts ${ones} to ${onesName}`, () => {
          expect(getNumberName(ones, {locale: getLocalizedNumberName})).toBe(onesName);
        });
      });
    });

    describe('1 in tens place', () => {
      describe.each`
        ones | onesName
        ${0} | ${'zehn'}
        ${1} | ${'elf'}
        ${2} | ${'zwölf'}
        ${3} | ${'dreizehn'}
        ${4} | ${'vierzehn'}
        ${5} | ${'fünfzehn'}
        ${6} | ${'sechzehn'}
        ${7} | ${'siebzehn'}
        ${8} | ${'achtzehn'}
        ${9} | ${'neunzehn'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        it(`converts 1${ones} to ${onesName}`, () => {
          expect(getNumberName(10 + ones, {locale: getLocalizedNumberName})).toBe(onesName);
        });
      });
    });

    describe.each`
      tens | tensName
      ${2} | ${'zwanzig'}
      ${3} | ${'dreißig'}
      ${4} | ${'vierzig'}
      ${5} | ${'fünfzig'}
      ${6} | ${'sechzig'}
      ${7} | ${'siebzig'}
      ${8} | ${'achtzig'}
      ${9} | ${'neunzig'}
    `('$tens in tens place', ({tens, tensName}) => {
      describe('0 in ones place', () => {
        const value = tens * 10;
        const name = tensName;
        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });

      describe.each`
        ones | onesName
        ${1} | ${'ein'}
        ${2} | ${'zwei'}
        ${3} | ${'drei'}
        ${4} | ${'vier'}
        ${5} | ${'fünf'}
        ${6} | ${'sechs'}
        ${7} | ${'sieben'}
        ${8} | ${'acht'}
        ${9} | ${'neun'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        const value = (tens * 10) + ones;
        const name = [onesName, tensName].join('und').trim();

        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });
    });
  });

  describe.each`
    hundreds | hundredsName
    ${1}     | ${'einhundert'}
    ${2}     | ${'zweihundert'}
    ${3}     | ${'dreihundert'}
    ${4}     | ${'vierhundert'}
    ${5}     | ${'fünfhundert'}
    ${6}     | ${'sechshundert'}
    ${7}     | ${'siebenhundert'}
    ${8}     | ${'achthundert'}
    ${9}     | ${'neunhundert'}
  `('$hundreds in hundreds place', ({
    hundreds,
    hundredsName,
  }) => {
    describe('0 in tens place', () => {
      describe.each`
        ones | onesName
        ${0} | ${''}
        ${1} | ${'ein'}
        ${2} | ${'zwei'}
        ${3} | ${'drei'}
        ${4} | ${'vier'}
        ${5} | ${'fünf'}
        ${6} | ${'sechs'}
        ${7} | ${'sieben'}
        ${8} | ${'acht'}
        ${9} | ${'neun'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        const value = (hundreds * 100) + ones;
        const name = [hundredsName, onesName].join('').trim();
        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });
    });

    describe('1 in tens place', () => {
      describe.each`
        ones | onesName
        ${0} | ${'zehn'}
        ${1} | ${'elf'}
        ${2} | ${'zwölf'}
        ${3} | ${'dreizehn'}
        ${4} | ${'vierzehn'}
        ${5} | ${'fünfzehn'}
        ${6} | ${'sechzehn'}
        ${7} | ${'siebzehn'}
        ${8} | ${'achtzehn'}
        ${9} | ${'neunzehn'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        const value = (hundreds * 100) + 10 + ones;
        const name = [hundredsName, onesName].join('').trim();
        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });
    });

    describe.each`
      tens | tensName
      ${2} | ${'zwanzig'}
      ${3} | ${'dreißig'}
      ${4} | ${'vierzig'}
      ${5} | ${'fünfzig'}
      ${6} | ${'sechzig'}
      ${7} | ${'siebzig'}
      ${8} | ${'achtzig'}
      ${9} | ${'neunzig'}
    `('$tens in tens place', ({tens, tensName}) => {
      describe('0 in ones place', () => {
        const value = (hundreds * 100) + (tens * 10);
        const name = [hundredsName, tensName].join('').trim();
        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });

      describe.each`
        ones | onesName
        ${1} | ${'ein'}
        ${2} | ${'zwei'}
        ${3} | ${'drei'}
        ${4} | ${'vier'}
        ${5} | ${'fünf'}
        ${6} | ${'sechs'}
        ${7} | ${'sieben'}
        ${8} | ${'acht'}
        ${9} | ${'neun'}
      `('$ones in ones place', ({
        ones,
        onesName,
      }) => {
        const value = (hundreds * 100) + (tens * 10) + ones;
        const name = [hundredsName, [onesName, tensName].join('und')].join('').trim();

        it(`converts ${value} to ${name}`, () => {
          expect(getNumberName(value, {locale: getLocalizedNumberName})).toBe(name);
        });
      });
    });
  });
});