def test_size_one(self):
'''The ring buffer behaves correctly when the max is 1
'''
rb = RingBuffer(1)
self.assertTrue(rb.getOldest() == None)
rb.add(1)
self.assertTrue(rb.getOldest() == 1)
rb.add(2)
self.assertTrue(rb.getOldest() == 2)
rb.add(3)
self.assertTrue(rb.getOldest() == 3)
def test_getOldest(self):
'''You can access the oldest element in the ring buffer with getOldest
When the list is empty, return None
'''
rb = RingBuffer(2)
self.assertTrue(rb.getOldest() == None)
rb.add(1)
self.assertTrue(rb.getOldest() == 1)
rb.add(2)
self.assertTrue(rb.getOldest() == 1)
rb.add(3)
self.assertTrue(rb.getOldest() == 2)
class Game:
def __init__(self):
# The number of equations the user is shown at the start
self.difficulty = 2
# The maximum number that can appear in an equation
self.max_int = 10
# Count of correct answers
self.correct = 0
# Total number of equations completed
self.total = 0
# Number of equations for the user to answer
self.max_equations = 10
# Ring buffer of equations
self.rb = RingBuffer(self.difficulty)
def nextEquation(self):
''' Creates the next equation
Returns a string representation of the equation for the user
to see. The string includes the order number corresponding to
the equation
'''
# Keep track of the number of equations
self.total += 1
# Create the equation
eq = Equation(10)
# Add it to the buffer
self.rb.add(eq)
# And display it
return '#%s) %s' % (self.total, eq)
def validateAnswer(self, answer):
''' Validates the answer and increments the count of correct answers
if the answer is correct.
'''
if(self.rb.getOldest().validate(answer)):
self.correct +=1
return True
else:
return False
