def remove_student(self, other):
"""
Removes the student from self.students and removes the edge for the graph connection
:param other: Student to remove
:type other: VisualUser
:return: None
"""
User.remove_student(self, other)
for edge in other.edges:
if edge.node1 == self.node and edge.node2 == other.node:
other.edges.remove(edge)
def test_user_double_remove_student(self):
"""
Tests that an error is raised when double removing a student
"""
u1 = User("u1", 1)
u2 = User("u2", 1)
u1.add_student(u2)
u1.remove_student(u2)
self.assertRaises(MissingStudentError, u1.remove_student, u2)
self.assertEqual(len(u1.students), 0)
self.assertFalse(u2 in u1.students)
self.assertFalse(u1 in u2.coaches)
def test_user_remove_single_student(self):
"""
Tests removing a student from a user's students
"""
u1 = User("u1", 1)
u2 = User("u2", 1)
u1.add_student(u2)
u1.remove_student(u2)
self.assertEqual(len(u1.students), 0)
self.assertFalse(u2 in u1.students)
self.assertEqual(len(u2.coaches), 0)
self.assertFalse(u1 in u2.coaches)
def test_user_remove_multiple_students_same_name(self):
"""
Tests removing students with the same name
"""
u1 = User("u1", 1)
u2 = User("u2", 1)
u3 = User("u2", 1)
u1.add_student(u2)
u1.add_student(u3)
u1.remove_student(u2)
self.assertEqual(len(u1.students), 1)
self.assertTrue(u3 in u1.students)
self.assertFalse(u2 in u1.students)
self.assertTrue(u1 in u3.coaches)
self.assertFalse(u1 in u2.coaches)
u1.remove_student(u3)
self.assertEqual(len(u1.students), 0)
self.assertFalse(u3 in u1.students)
self.assertFalse(u2 in u1.students)
self.assertFalse(u1 in u3.coaches)
self.assertFalse(u1 in u2.coaches)
