def checkDirectionFromTo():
'''A function that tests to ensure the directionFromTo function is
working as expected in all cases, returning False while printing
an error message if this is not the case. '''
# load in fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
idList = bike.getIdList(bikeData)
# for every possible permutation of two stations:
for firstStation in idList:
for secondStation in idList:
try:
# get the direction
direc = bike.directionFromTo(firstStation, secondStation,
bikeData)
# make sure it is in the list of possible outputs
if direc not in [
'NORTHEAST', 'NORTHWEST', 'SOUTHEAST', 'NORTH',
'SOUTH', 'WEST', 'EAST', 'Same location.', 'SOUTHWEST'
]:
print('invalid direction')
return False
except:
print('could not get a direction. ')
return False
return True
def checkGetIdList():
'''A function that returns a boolean value indicating if the
getIdList function is working as expected. It will print
a short description of the error if it catches one. '''
# load in fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
# generate the id list to check
idList = bike.getIdList(bikeData)
# check every id
for id in idList:
# check for correct data types
if type(id) != str:
print('Id is the wrong type')
return False
# check that each id is indeed a number but in string form
try:
int(id)
except:
print('There is an id that cannot be converted to int')
return False
# if some ids were missed or extras were introduced.
if len(idList) != len(bikeData) - 1:
print('There is an incorrect number of ids')
return False
return True
def checkLookupStation():
'''A function that checks whether the lookup station function
is working in all cases, returning a boolean value indicating
True or False. It also prints a short message hinting at the
possible error. '''
# load fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
idList = bike.getIdList(bikeData)
# lookup every station
outputList = [bike.lookupStation(id, bikeData) for id in idList]
for output in outputList:
# check if a value in idList cannot be looked up
if output == 'ErrorNotFound':
print('bad id in idlist')
return False
# check if an output does not meet the description of a station
elif len(output) != 7:
print('An output does not have the right number of items.')
return False
return True
def checkReturnBike():
'''A function that tests to ensure the returnBike function is
working as expected in all cases, returning False while printing
an error message if this is not the case. '''
# load fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
idList = bike.getIdList(bikeData)
# check the function on legitimate inputs
output = [bike.returnBike(id, bikeData) for id in idList]
for x in output:
# if there is no success/fail boolean returned
if x[0] != True and x[0] != False:
print('Error in renting bikes.')
return False
# check the function on bad inputs
output2 = [
bike.returnBike(id, bikeData)
for id in ['fakeId', '', '1234', 'alsonotid']
]
for x in output2:
# if the proper error code is not returned
if x[0] != 'ErrorNotFound':
print('Error in handling bad ids.')
return False
return True
def checkRentBike():
'''A function that ensures the rentBike function is working
in all cases, and returns False if it is not along with
printing a short error message. '''
# load in fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
idList = bike.getIdList(bikeData)
# call the rentbike function on every station
output = [bike.rentBike(id, bikeData) for id in idList]
for x in output:
# if the function did not return True for Success or False for fail
if x[0] != True and x[0] != False:
print('Error in renting bikes.')
return False
# call the rentbike function on fictitious data it should be able to handle
output2 = [
bike.rentBike(id, bikeData)
for id in ['fakeId', '', '1234', 'alsonotid']
]
for x in output2:
# if the function does not return the appropriate error code
if x[0] != 'ErrorNotFound':
print('Error in handling bad ids.')
return False
return True
def checkCheckBikeAvailability():
'''A function that tests to ensure the checkBikeAvailability function is
working as expected in all cases, returning False while printing
an error message if this is not the case. '''
# load in fresh data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bikeData = bike.castCleanData(bike.readData(dataSource))
idList = bike.getIdList(bikeData)
# check the availability of every station
outputs = [bike.checkBikeAvailability(id, bikeData) for id in idList]
for output in outputs:
# if the output is not an integer
if type(output) != int:
print('bike availability is not an int.')
return False
return True
def simulateUse(turns):
"""A function that will import the data, and then
randomly do an operation for turns number of times
where turns is large enough that there is a high
probability that every sequence if use is explored.
This will find any cases where the logic will cause
a runtime error. """
# load and cast the data
dataSource = "http://research.cs.queensu.ca/home/cords2/bikes.txt"
bData = bike.castCleanData(bike.readData(dataSource))
# get the id lisr
idList = bike.getIdList(bData)
bike.intro()
# the following code will run turns number of times
for x in range(turns):
# select a random operation
choice = random.choice(['1', '2', '3', '4', '5', '6', '7'])
# try renting a bike
if choice == '1':
id = random.choice(idList)
success, bData = bike.rentBike(id, bData)
# try returning a bike
elif choice == '2':
id = random.choice(idList)
success, bData = bike.returnBike(id, bData)
# try checking bike availability
elif choice == '3':
id = random.choice(idList)
numAvailable = bike.checkBikeAvailability(id, bData)
# try listing bike availability
elif choice == '4':
sortedList = bike.listAvailable(bData)
# try getting a direc
elif choice == '5':
idOne = random.choice(idList)
idTwo = random.choice(idList)
direction = bike.directionFromTo(idOne, idTwo, bData)
elif choice == '6':
id = random.choice(idList)
output = bike.niceLine(bike.lookupStation(id, bData))
elif choice == '7':
fullStations = bike.listFull(bData)
# lets the user quit the program.
elif choice == 'q' or choice == 'Q':
print('Thank-you for using the Toronto Bike Share Program!')
running = False
return
else:
print('Sorry, your selection is not an option. ')
# print a status.
if x % 10000 == 0:
print("Testing: {}%".format(round(x * 100 / turns, 1)))
print('Done testing, no runtime errors. ')
return True