def delete(self, id):
try:
f = open("data/courses", "r")
f1 = open("data/temp", "w")
found = False
for line in f:
object = line.split(",")
course = Course(int(object[0]), object[1], object[2])
self.validator.validate(course)
if course.get_id() != id:
s = str(course.get_id()) + "," + course.get_name(
) + "," + course.get_professor() + ",\n"
f1.write(s)
else:
found = True
f.close()
f1.close()
if found == False:
raise CourseError("Course not found")
f1 = open("data/temp", "r")
f = open("data/courses", "w")
for line in f1:
f.write(line)
f.close()
f1.close()
except IOError:
raise ValueError("Cannot read course data")
class TestCourseController(unittest.TestCase):
def setUp(self):
courses = CourseRepository()
self.course1 = Course(1, "Asc", "Vancea")
self.course2 = Course(2, "Fp", "I")
self.course3 = Course(3, "Logica", "Pop")
courses.save(self.course1)
courses.save(self.course2)
self.course_controller = CourseController(courses)
def test_get_all(self):
self.assertEqual(self.course_controller.get_all()[0], self.course1)
self.assertEqual(self.course_controller.get_all()[1], self.course2)
def test_add(self):
self.course_controller.add(self.course3.get_id(),
self.course3.get_name(),
self.course3.get_professor())
self.assertEqual(self.course_controller.get_all()[2].get_id(),
self.course3.get_id())
self.assertEqual(self.course_controller.get_all()[2].get_name(),
self.course3.get_name())
self.assertEqual(self.course_controller.get_all()[2].get_professor(),
self.course3.get_professor())
self.assertRaises(
CourseError,
lambda: self.course_controller.add(1, "Algebra", "Modoi"))
def test_search_id(self):
self.assertEqual(
self.course_controller.search_by_id(1).get_name(), "Asc")
self.assertEqual(
self.course_controller.search_by_id(1).get_professor(), "Vancea")
self.assertRaises(CourseError,
lambda: self.course_controller.search_by_id(4))
def find_by_id(self, id):
try:
f = open("data/courses", "r")
for line in f:
object = line.split(",")
course = Course(int(object[0]), object[1], object[2])
self.validator.validate(course)
if course.get_id() == id:
f.close()
return course
return -1
except IOError:
raise ValueError("Cannot read course data")
def save(self, course_to_add):
try:
f = open("data/courses", "a+")
for line in f:
object = line.split(",")
course = Course(int(object[0]), object[1], object[2])
self.validator.validate(course)
if course.get_id() == course_to_add.get_id():
raise CourseError("Duplicated Id's")
s = str(course_to_add.get_id()) + "," + course_to_add.get_name(
) + "," + course_to_add.get_professor() + ",\n"
f.write(s)
f.close()
except IOError:
raise ValueError("Cannot read course data")
def find_index(self, course_to_add):
try:
f = open("data/courses", "r")
index = 0
for line in f:
object = line.split(",")
course = Course(int(object[0]), object[1], object[2])
self.validator.validate(course)
if course.get_id() == course_to_add.get_id():
f.close()
return index
else:
index = index + 1
return -1
except IOError:
raise ValueError("Cannot read course data")
def update_course(self, id, name, professor):
'''
update_course -> None
Updates a Course from the list of courses
If the course doesn't exist or there id a validation error, raises CourseError
:param id: int
:param name: string
:param professor: string
'''
course = Course(id, name, professor)
self.course_validator.validate(course)
self.course_repository.update(course)
grades_to_update = self.grade_repository.find_by_course(
course.get_id())
for i in range(0, len(grades_to_update)):
student = self.student_repository.find_by_id(
grades_to_update[i].get_id_student())
grade = grades_to_update[i].get_grade()
grade = self.create(student, course, grade)
self.grade_repository.update(grade)
class TestCourseRepository(unittest.TestCase):
def setUp(self):
self.grades = GradeRepository()
self.course1 = Course(1, "Asc", "Vancea")
self.student1 = Student(1, "Vlad")
self.student2 = Student(2, "Ion")
self.course2 = Course(2, "Fp", "I")
self.grade1 = Grade(self.student1, self.course1, 10)
self.grade2 = Grade(self.student1, self.course2, 4)
self.grade3 = Grade(self.student2, self.course1, 7)
self.grade4 = Grade(self.student1, self.course1, 8)
self.grades.save(self.grade1)
self.grades.save(self.grade2)
def test_save(self):
self.grades.save(self.grade3)
self.assertEqual(self.grades.find_all()[2].get_id_student(),
self.grade3.get_student().get_id())
self.assertEqual(self.grades.find_all()[2].get_id_course(),
self.grade3.get_course().get_id())
self.assertEqual(self.grades.find_all()[2].get_grade(),
self.grade3.get_grade())
self.assertRaises(GradeError, lambda: self.grades.save(self.grade4))
def test_find_all(self):
self.assertEqual(self.grades.find_all()[0].get_id_student(),
self.grade1.get_student().get_id())
self.assertEqual(self.grades.find_all()[0].get_id_course(),
self.grade1.get_course().get_id())
self.assertEqual(self.grades.find_all()[0].get_grade(),
self.grade1.get_grade())
self.assertEqual(self.grades.find_all()[1].get_id_student(),
self.grade2.get_student().get_id())
self.assertEqual(self.grades.find_all()[1].get_id_course(),
self.grade2.get_course().get_id())
self.assertEqual(self.grades.find_all()[1].get_grade(),
self.grade2.get_grade())
def test_update(self):
self.grades.update(self.grade4)
self.assertEqual(self.grades.find_all()[0].get_id_student(),
self.grade4.get_student().get_id())
self.assertEqual(self.grades.find_all()[0].get_id_course(),
self.grade4.get_course().get_id())
self.assertEqual(self.grades.find_all()[0].get_grade(),
self.grade4.get_grade())
self.assertRaises(GradeError, lambda: self.grades.update(self.grade3))
def test_delete(self):
self.grades.delete(1, 1)
self.assertEqual(self.grades.find_all()[0].get_id_student(),
self.grade2.get_student().get_id())
self.assertEqual(self.grades.find_all()[0].get_id_course(),
self.grade2.get_course().get_id())
self.assertEqual(self.grades.find_all()[0].get_grade(),
self.grade2.get_grade())
self.assertRaises(GradeError, lambda: self.grades.delete(4, 1))
self.assertRaises(GradeError, lambda: self.grades.delete(1, 4))
def test_find_by_id(self):
self.assertEqual(self.grades.find_by_id(1, 1), self.grade1)
self.assertEqual(self.grades.find_by_id(5, 1), -1)
def test_find_index(self):
self.assertEqual(self.grades.find_index(self.grade2), 1)
self.assertEqual(self.grades.find_index(self.grade3), -1)
def test_find_by_student(self):
self.assertEqual(
self.grades.find_by_student(1)[0].get_id_course(),
self.course1.get_id())
self.assertEqual(
self.grades.find_by_student(1)[0].get_course_name(),
self.course1.get_name())
self.assertEqual(self.grades.find_by_student(1)[0].get_grade(), 10)
self.assertEqual(
self.grades.find_by_student(1)[1].get_id_course(),
self.course2.get_id())
self.assertEqual(
self.grades.find_by_student(1)[1].get_course_name(),
self.course2.get_name())
self.assertEqual(self.grades.find_by_student(1)[1].get_grade(), 4)
self.assertEqual(self.grades.find_by_student(5), [])
repo = GradeRepository()
self.assertEqual(repo.find_by_student(1), [])
def test_find_by_course(self):
self.grades.save(self.grade3)
self.assertEqual(
self.grades.find_by_course(1)[0].get_id_student(),
self.student1.get_id())
self.assertEqual(
self.grades.find_by_course(1)[1].get_id_student(),
self.student2.get_id())
self.assertEqual(
self.grades.find_by_course(1)[0].get_student_name(),
self.student1.get_name())
self.assertEqual(
self.grades.find_by_course(1)[1].get_student_name(),
self.student2.get_name())
self.assertEqual(self.grades.find_by_course(1)[0].get_grade(), 10)
self.assertEqual(self.grades.find_by_course(1)[1].get_grade(), 7)
self.assertEqual(self.grades.find_by_course(5), [])
class TestGradeController(unittest.TestCase):
def setUp(self):
self.students = StudentRepository()
courses = CourseRepository()
grades = GradeRepository()
self.course1 = Course(1, "Asc", "Vancea")
self.student1 = Student(1, "Vlad")
self.student2 = Student(2, "Alex")
courses.save(self.course1)
self.students.save(self.student1)
self.students.save(self.student2)
self.course2 = Course(2, "Fp", "I")
courses.save(self.course2)
self.grade1 = Grade(self.student1, self.course1, 10)
self.grade2 = Grade(self.student1, self.course2, 4)
grades.save(self.grade1)
grades.save(self.grade2)
self.grade_controller = GradeController(courses, self.students, grades)
def test_get_all(self):
self.assertEqual(self.grade_controller.get_all()[0].get_id_student(),
self.grade1.get_student().get_id())
self.assertEqual(self.grade_controller.get_all()[0].get_id_course(),
self.grade1.get_course().get_id())
self.assertEqual(self.grade_controller.get_all()[0].get_grade(),
self.grade1.get_grade())
self.assertEqual(self.grade_controller.get_all()[1].get_id_student(),
self.grade2.get_student().get_id())
self.assertEqual(self.grade_controller.get_all()[1].get_id_course(),
self.grade2.get_course().get_id())
self.assertEqual(self.grade_controller.get_all()[1].get_grade(),
self.grade2.get_grade())
def test_add(self):
self.grade_controller.add(self.student2.get_id(),
self.course1.get_id(), 10)
self.assertEqual(self.grade_controller.get_all()[2].get_id_student(),
self.student2.get_id())
self.assertEqual(self.grade_controller.get_all()[2].get_id_course(),
self.course1.get_id())
self.assertEqual(self.grade_controller.get_all()[2].get_grade(), 10)
self.assertRaises(GradeError,
lambda: self.grade_controller.add(1, 1, 3.5))
self.assertRaises(GradeError,
lambda: self.grade_controller.add(10, 1, 3.5))
self.assertRaises(GradeError,
lambda: self.grade_controller.add(1, 10, 3.5))
self.assertRaises(GradeError,
lambda: self.grade_controller.add(1, 10, "a"))
def test_update_course(self):
self.grade_controller.update_course(1, "Analiza", "Berinde")
self.assertEqual(self.grade_controller.get_all()[0].get_course_name(),
"Analiza")
self.assertEqual(self.grade_controller.get_all()[0].get_professor(),
"Berinde")
self.assertRaises(
CourseError, lambda: self.grade_controller.update_course(
10, "Analiza", "Berinde"))
self.assertRaises(
CourseError, lambda: self.grade_controller.update_course(
"a", "Analiza", "Berinde"))
def test_update_student(self):
self.grade_controller.update_student(1, "Berinde")
self.assertEqual(self.grade_controller.get_all()[0].get_student_name(),
"Berinde")
self.assertRaises(
StudentError,
lambda: self.grade_controller.update_student(10, "Berinde"))
self.assertRaises(
StudentError,
lambda: self.grade_controller.update_student("a", "Berinde"))
self.assertRaises(
StudentError,
lambda: self.grade_controller.update_student(1, "berinde"))
def test_update_grade(self):
self.grade_controller.update_grade(1, 1, 9)
self.assertEqual(self.grade_controller.get_all()[0].get_grade(), 9)
self.assertRaises(
GradeError, lambda: self.grade_controller.update_grade(10, 1, 10))
self.assertRaises(
GradeError, lambda: self.grade_controller.update_grade(1, 10, 10))
self.assertRaises(
GradeError,
lambda: self.grade_controller.update_grade("a", 10, 10))
self.assertRaises(
GradeError, lambda: self.grade_controller.update_grade(1, 1, -10))
def test_remove_course(self):
self.grade_controller.remove_course(1)
self.assertEqual(self.grade_controller.get_all()[0].get_grade(), 4)
self.assertEqual(self.grade_controller.get_all()[0].get_id_student(),
1)
self.assertEqual(self.grade_controller.get_all()[0].get_id_course(), 2)
self.assertRaises(CourseError,
lambda: self.grade_controller.remove_course(10))
def test_remove_student(self):
self.grade_controller.remove_student(1)
self.assertEqual(self.grade_controller.get_all(), [])
self.assertRaises(StudentError,
lambda: self.grade_controller.remove_student(10))
def test_remove_grade(self):
self.grade_controller.remove_grade(1, 1)
self.assertEqual(self.grade_controller.get_all()[0].get_id_student(),
1)
self.assertEqual(self.grade_controller.get_all()[0].get_id_course(), 2)
self.assertRaises(GradeError,
lambda: self.grade_controller.remove_grade(10, 1))
def test_best_students(self):
student3 = Student(3, "Maria")
self.students.save(student3)
self.grade_controller.add(self.student2.get_id(),
self.course1.get_id(), 10)
self.grade_controller.add(self.student2.get_id(),
self.course2.get_id(), 5)
self.grade_controller.add(student3.get_id(), self.course1.get_id(), 7)
self.grade_controller.add(student3.get_id(), self.course2.get_id(), 7)
self.assertEqual(len(self.grade_controller.search_highest_grades()), 1)
self.assertEqual(
self.grade_controller.search_highest_grades()[0][0].get_id(), 2)
self.assertEqual(
self.grade_controller.search_highest_grades()[0][0].get_name(),
"Alex")
self.assertEqual(self.grade_controller.search_highest_grades()[0][1],
7.5)
def test_failed_students(self):
student3 = Student(3, "Maria")
self.students.save(student3)
self.grade_controller.add(self.student2.get_id(),
self.course1.get_id(), 4)
self.grade_controller.add(self.student2.get_id(),
self.course2.get_id(), 5)
self.grade_controller.add(student3.get_id(), self.course1.get_id(), 4)
self.grade_controller.add(student3.get_id(), self.course2.get_id(), 7)
self.assertEqual(self.grade_controller.failed_students()[0][0],
"Vancea")
self.assertEqual(self.grade_controller.failed_students()[1][0], "I")
self.assertEqual(self.grade_controller.failed_students()[0][1], 2)
self.assertEqual(self.grade_controller.failed_students()[1][1], 1)
def test_search_course_grades(self):
self.grade_controller.add(self.student2.get_id(),
self.course1.get_id(), 4)
self.assertEqual(
self.grade_controller.search_course_grades(1)[1].get_id_student(),
1)
self.assertEqual(
self.grade_controller.search_course_grades(1)
[0].get_student_name(), "Alex")
self.assertEqual(
self.grade_controller.search_course_grades(1)
[1].get_student_name(), "Vlad")
self.assertEqual(
self.grade_controller.search_course_grades(1)[0].get_id_student(),
2)
self.assertEqual(self.grade_controller.search_course_grades(4), [])