Yasumi\Yasumi::create PHP Method

    public static function create($class, $year = null, $locale = self::DEFAULT_LOCALE)
    {
        // Find and return holiday provider instance
        $providerClass = sprintf('Yasumi\\Provider\\%s', str_replace('/', '\\', $class));
        if (class_exists($class) && (new ReflectionClass($class))->implementsInterface(ProviderInterface::class)) {
            $providerClass = $class;
        }
        if (!class_exists($providerClass) || $class === 'AbstractProvider') {
            throw new InvalidArgumentException(sprintf('Unable to find holiday provider "%s".', $class));
        }
        // Assert year input
        if ($year < 1000 || $year > 9999) {
            throw new InvalidArgumentException(sprintf('Year needs to be between 1000 and 9999 (%s given).', $year));
        }
        // Load internal locales variable
        if (!isset(static::$locales)) {
            static::$locales = self::getAvailableLocales();
        }
        // Load internal translations variable
        if (!isset(static::$globalTranslations)) {
            static::$globalTranslations = new Translations(static::$locales);
            static::$globalTranslations->loadTranslations(__DIR__ . '/data/translations');
        }
        // Assert locale input
        if (!in_array($locale, static::$locales)) {
            throw new UnknownLocaleException(sprintf('Locale "%s" is not a valid locale.', $locale));
        }
        return new $providerClass($year, $locale, self::$globalTranslations);
    }

 /**
  * Tests name of Veterans Day after 1954. Veterans Day was named 'Armistice Day' before 1954.
  */
 public function testVeteransDayNameAfter1954()
 {
     $year = $this->generateRandomYear(1954);
     $holidays = Yasumi::create(self::REGION, $year);
     $holiday = $holidays->getHoliday(self::HOLIDAY);
     $this->assertEquals('Veterans Day', $holiday->getName());
 }