def testAdd(self):
m = Modulo(self.MAX_VALUE, self.INVALID_VALUE)
self.assertEqual(0, m.add(0, 0))
self.assertEqual(123, m.add(23, 100))
self.assertEqual(100, m.add(-100, 200))
self.assertEqual(self.INVALID_VALUE, m.add(self.INVALID_VALUE, 100))
self.assertEqual(self.INVALID_VALUE, m.add(100, self.INVALID_VALUE))
self.assertEqual(self.INVALID_VALUE,
m.add(self.INVALID_VALUE, self.INVALID_VALUE))
class Date:
def __init__(self):
self.weekday = Modulo(7, 1)
self.year = 1900
def __repr__(self):
return weekdays[self.weekday.value] + " " + str(self.year)
def isSUN(self):
if self.weekday == Modulo(7, 0): return True
else: return False
def isLeapYear(self):
if self.year % 4 == 0:
if self.year % 100 == 0:
if self.year % 400 == 0:
return True
else:
return False
else:
return True
else:
return False
def countSundays(self):
for mon in months: # 1900 is not a leap year and not part of the 20th century
self.weekday.add(months[mon])
self.year += 1
# now in the 20th century
count = 0
print(self)
if self.isSUN(): count += 1
for i in range(100):
if not self.isLeapYear():
for mon in months:
self.weekday.add(months[mon])
if self.isSUN():
count += 1
print(
month_names[Modulo(
12, month_names.index(mon)).add(1).value] +
": ", self)
else:
for mon in months_leap:
self.weekday.add(months_leap[mon])
if self.isSUN():
count += 1
print(
month_names[Modulo(
12, month_names.index(mon)).add(1).value] +
": ", self)
self.year += 1
return count
