Чистый код. Создание, анализ и рефакторинг

264     assertEquals(31, lastDayOfMonth(AUGUST, 1901));

265     assertEquals(30, lastDayOfMonth(SEPTEMBER, 1901));

266     assertEquals(31, lastDayOfMonth(OCTOBER, 1901));

267     assertEquals(30, lastDayOfMonth(NOVEMBER, 1901));

268     assertEquals(31, lastDayOfMonth(DECEMBER, 1901));

269     assertEquals(29, lastDayOfMonth(FEBRUARY, 1904));

270   }

271

272   public void testAddDays() throws Exception {

273     SerialDate newYears = d(1, JANUARY, 1900);

274     assertEquals(d(2, JANUARY, 1900), addDays(1, newYears));

275     assertEquals(d(1, FEBRUARY, 1900), addDays(31, newYears));

276     assertEquals(d(1, JANUARY, 1901), addDays(365, newYears));

277     assertEquals(d(31, DECEMBER, 1904), addDays(5 * 365, newYears));

278   }

279

280   private static SpreadsheetDate d(int day, int month, int year) {return new

SpreadsheetDate(day, month, year);}

281

282   public void testAddMonths() throws Exception {

283     assertEquals(d(1, FEBRUARY, 1900), addMonths(1, d(1, JANUARY, 1900)));

284     assertEquals(d(28, FEBRUARY, 1900), addMonths(1, d(31, JANUARY, 1900)));

285     assertEquals(d(28, FEBRUARY, 1900), addMonths(1, d(30, JANUARY, 1900)));

286     assertEquals(d(28, FEBRUARY, 1900), addMonths(1, d(29, JANUARY, 1900)));

287     assertEquals(d(28, FEBRUARY, 1900), addMonths(1, d(28, JANUARY, 1900)));

288     assertEquals(d(27, FEBRUARY, 1900), addMonths(1, d(27, JANUARY, 1900)));

289

290     assertEquals(d(30, JUNE, 1900), addMonths(5, d(31, JANUARY, 1900)));

291     assertEquals(d(30, JUNE, 1901), addMonths(17, d(31, JANUARY, 1900)));

292

293     assertEquals(d(29, FEBRUARY, 1904), addMonths(49, d(31, JANUARY, 1900)));

294

295   }

296

297   public void testAddYears() throws Exception {

298     assertEquals(d(1, JANUARY, 1901), addYears(1, d(1, JANUARY, 1900)));

299     assertEquals(d(28, FEBRUARY, 1905), addYears(1, d(29, FEBRUARY, 1904)));

300     assertEquals(d(28, FEBRUARY, 1905), addYears(1, d(28, FEBRUARY, 1904)));

301     assertEquals(d(28, FEBRUARY, 1904), addYears(1, d(28, FEBRUARY, 1903)));

302   }

303

304   public void testGetPreviousDayOfWeek() throws Exception {

305     assertEquals(d(24, FEBRUARY, 2006), getPreviousDayOfWeek(FRIDAY, d(1, MARCH, 2006)));

306     assertEquals(d(22, FEBRUARY, 2006), getPreviousDayOfWeek(WEDNESDAY, d(1, MARCH,

         2006)));

307     assertEquals(d(29, FEBRUARY, 2004), getPreviousDayOfWeek(SUNDAY, d(3, MARCH, 2004)));

308     assertEquals(d(29, DECEMBER, 2004), getPreviousDayOfWeek(WEDNESDAY, d(5, JANUARY,

         2005)));

309

310     try {