def test_disciplines_with_grades(self):
services = Services()
repo = services.repository
services = Services()
repo = services.repository
services.add(["student", "1", "stud 1"])
services.add(["student", "2", "stud 2"])
services.add(["student", "3", "stud 3"])
services.add(["discipline", "1", "discipline 1"])
services.add(["discipline", "2", "discipline 2"])
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertRaises(Exception, lambda: services.see_grades())
services.grade(["1", "1", "10"])
services.grade(["2", "1", "10"])
services.grade(["2", "1", "1"])
services.grade(["2", "1", "4"])
services.grade(["2", "2", "5"])
services.grade(["3", "1", "1"])
services.grade(["3", "1", "2"])
services.grade(["3", "1", "3"])
services.grade(["3", "1", "4"])
services.grade(["3", "2", "5"])
self.assertEqual(repo.get_grades_count(), 10)
self.assertIn("\n", services.see_grades())
def test_remove_student(self):
services = Services()
repo = services.repository
services.add(["discipline", "0", "discipline test"])
services.add(["student", "1", "student 1 test"])
services.add(["student", "2", "student 2 test"])
services.grade(["1", "0", "10"])
services.grade(["1", "0", "6"])
services.grade(["2", "0", "9"])
services.grade(["2", "0", "7"])
services.grade(["2", "0", "8"])
self.assertEqual(repo.get_students_count(), 2)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 5)
self.assertRaises(Exception, lambda: services.remove([]))
self.assertRaises(Exception, lambda: services.remove(["", ""]))
self.assertRaises(Exception, lambda: services.remove(["abc", "abc"]))
self.assertRaises(Exception,
lambda: services.remove(["student", "abc"]))
self.assertRaises(Exception, lambda: services.remove(["student", "0"]))
services.remove(["student", "2"])
self.assertEqual(repo.get_students_count(), 1)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 2)
self.assertRaises(Exception, lambda: services.remove(["student", "2"]))
def test_redo(self):
services = Services()
repo = services.repository
self.assertRaises(Exception, lambda: services.redo())
services.add(["student", "1", "stud 1"])
services.add(["student", "2", "stud 2"])
services.add(["student", "3", "stud 3"])
services.add(["discipline", "1", "discipline 1"])
services.add(["discipline", "2", "discipline 2"])
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertEqual(repo.get_grades_count(), 0)
self.assertRaises(Exception, lambda: services.redo())
services.undo()
services.undo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 0)
self.assertEqual(repo.get_grades_count(), 0)
services.redo()
services.redo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertEqual(repo.get_grades_count(), 0)
services.grade(["1", "1", "10"])
services.grade(["2", "1", "10"])
services.grade(["2", "1", "1"])
services.grade(["2", "1", "4"])
services.grade(["2", "2", "5"])
services.grade(["3", "1", "1"])
services.grade(["3", "1", "2"])
services.grade(["3", "1", "3"])
services.grade(["3", "2", "4"])
services.grade(["3", "2", "5"])
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertEqual(repo.get_grades_count(), 10)
services.remove(["discipline", "2"])
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 7)
services.undo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertEqual(repo.get_grades_count(), 10)
services.redo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 7)
services.remove(["student", "3"])
self.assertEqual(repo.get_students_count(), 2)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 4)
for _ in range(13):
services.undo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertEqual(repo.get_grades_count(), 0)
services.redo()
services.redo()
self.assertEqual(repo.get_students_count(), 3)
self.assertEqual(repo.get_disciplines_count(), 2)
self.assertEqual(repo.get_grades_count(), 1)
services.update(["discipline", "1", "test"])
self.assertEqual(repo.get_disciplines_count(), 2)
services.undo()
self.assertEqual(repo.get_disciplines_count(), 2)
discipline = repo.get_discipline(1)
self.assertEqual(discipline.name, "discipline 1")
services.redo()
self.assertEqual(repo.get_disciplines_count(), 2)
discipline = repo.get_discipline(1)
self.assertEqual(discipline.name, "test")
for _ in range(7):
services.undo()
self.assertTrue(repo.is_empty())
services.preload_list()
self.assertFalse(repo.is_empty())
services.undo()
self.assertTrue(repo.is_empty())
services.redo()
self.assertFalse(repo.is_empty())
self.assertRaises(Exception, lambda: services.redo())
def test_grade(self):
services = Services()
repo = services.repository
services.add(["student", "1", "stud 1"])
services.add(["discipline", "1", "discipline 1"])
self.assertEqual(repo.get_students_count(), 1)
self.assertEqual(repo.get_disciplines_count(), 1)
self.assertRaises(Exception, lambda: services.grade([]))
self.assertRaises(Exception, lambda: services.grade(["", "", ""]))
self.assertRaises(Exception,
lambda: services.grade(["abc", "abc", "abc"]))
self.assertRaises(Exception,
lambda: services.grade(["0", "abc", "abc"]))
self.assertRaises(Exception,
lambda: services.grade(["1", "abc", "abc"]))
self.assertRaises(Exception, lambda: services.grade(["1", "0", "abc"]))
self.assertRaises(Exception, lambda: services.grade(["1", "1", "abc"]))
self.assertRaises(Exception, lambda: services.grade(["1", "1", "0"]))
self.assertRaises(Exception, lambda: services.grade(["1", "1", "11"]))
services.grade(["1", "1", "1"])
services.grade(["1", "1", "10"])
services.grade(["1", "1", "5"])
self.assertEqual(repo.get_grades_count(), 3)
class Program:
def __init__(self):
self.__services = Services()
self.__ui_manager = MenuUI()
def change_ui(self):
if self.__ui_manager.switch_ui_prefernece():
if self.__ui_manager.TYPE == MenuUI.TYPE:
self.__ui_manager = GraphicalUI()
else:
self.__ui_manager = MenuUI()
def start(self):
self.__services.preload_list()
self.change_ui()
while True:
result = ""
try:
action = self.__ui_manager.get_action()
if action.type == Action.ADD:
self.__services.add(action.params)
elif action.type == Action.REMOVE:
self.__services.remove(action.params)
elif action.type == Action.UPDATE:
self.__services.update(action.params)
elif action.type == Action.LIST:
result = self.__services.list_all()
elif action.type == Action.GRADE:
self.__services.grade(action.params)
elif action.type == Action.SEARCH:
result = self.__services.search(action.params)
elif action.type == Action.SEE_FAILING_STUDENTS:
result = self.__services.see_failing_students()
elif action.type == Action.SEE_BEST_STUDENTS:
result = self.__services.see_best_students()
elif action.type == Action.SEE_GRADES:
result = self.__services.see_grades()
elif action.type == Action.UNDO:
self.__services.undo()
elif action.type == Action.REDO:
self.__services.redo()
elif action.type == Action.HELP:
self.__ui_manager.show_help()
continue
elif action.type == Action.UI:
self.change_ui()
continue
elif action.type == Action.TEST:
unittest.main(module = "services_test", exit = False)
continue
elif action.type == Action.EXIT:
return
self.__ui_manager.print_result(result)
except Exception as error:
self.__ui_manager.handle_error(error)
