def test_empty_courselist(self):
cl = CourseList()
self.assertIsNone(cl.head)
self.assertEqual(cl.size(), 0)
self.assertAlmostEqual(cl.calculate_gpa(), 0.0)
self.assertAlmostEqual(cl.calculate_gpa(), 0.0)
self.assertTrue(cl.is_sorted())
def test_empty_courselist():
cl = CourseList()
assert cl.head == None
assert cl.size() == 0
assert cl.calculate_gpa() == 0.0
assert cl.calculate_gpa() == 0.0
assert cl.is_sorted()
def test_gpa():
random.seed(0)
cl = CourseList()
total_credits = 0.0
total_grade_points = 0.0
for _ in range(10):
credits = random.uniform(1.0, 5.0)
grade = random.uniform(0.0, 4.0)
total_credits += credits
total_grade_points += credits * grade
cl.insert(Course(1234, "Test", credits, grade))
assert math.isclose(cl.calculate_gpa(), total_grade_points / total_credits)
def test_gpa(self):
random.seed(0)
cl = CourseList()
total_credits = 0.0
total_grade_points = 0.0
for _ in range(10):
credits = random.uniform(1.0, 5.0)
grade = random.uniform(0.0, 4.0)
total_credits += credits
total_grade_points += credits * grade
cl.insert(Course(1234, "Test", credits, grade))
self.assertAlmostEqual(cl.calculate_gpa(), (total_grade_points / total_credits))
def main ():
filePath = "data.txt" # path of file to access.
file = open(filePath) # opens file.
lines = len(file.readlines()) # accesses number of lines in data file.
file = open(filePath) # reopens data file.
number = 0 # temporary variable for class number.
name = " " # temporary variable for class name.
credit = 0 # temporary variable for credit hours.
grade = 0.0 # temporary variable for grades.
schedule = CourseList(None) # empty CourseList object.
for x in range(lines - 1): # for loop parsing each line of data file.
firstLine = file.readline()
comma = firstLine.index(',')
number = firstLine[0:comma] # accesses class number.
firstLine = firstLine[comma + 1:len(firstLine)]
comma = firstLine.index(',')
name = firstLine[0:comma] # accesses class name.
firstLine = firstLine[comma + 1:len(firstLine)]
comma = firstLine.index(',')
credit = firstLine[0:comma] # accesses credit hours.
firstLine = firstLine[comma + 1:len(firstLine)]
grade = firstLine # accesses grade.
schedule.insert(Course(int(number), name, float(credit), float(grade), None)) # inserts a Course object into the CourseList object using parsed data.
firstLine = file.readline() # repeats parsing process for last line of the data file.
comma = firstLine.index(',')
number = firstLine[0:comma]
firstLine = firstLine[comma + 1:len(firstLine)]
comma = firstLine.index(',')
name = firstLine[0:comma]
firstLine = firstLine[comma + 1:len(firstLine)]
comma = firstLine.index(',')
credit = firstLine[0:comma]
firstLine = firstLine[comma + 1:len(firstLine)]
grade = firstLine
schedule.insert(Course(int(number), name, int(credit), float(grade), None)) # inserts last Course object.
print("Current List: (", schedule.size(), ")") # prints out current CourseList object size.
print("\n")
print(schedule) # prints current CourseList with inserted courses.
print("\n\n\n")
print("Cumulative GPA: ", schedule.calculate_gpa()) # prints out cumulative GPA.
