def test_fire_lowest_rated_employee_tie() -> None:
e1 = Leader(1, "Sarah", "CEO", 500000, 99, "Some Corp.")
e2 = Employee(2, "Sandra", "Secretary", 20000, 99)
e3 = Employee(3, "Sofia", "Manager", 25000, 89)
e4 = Employee(4, "Senya", "Grunt", 5000, 89)
e5 = Employee(5, "Sylvia", "Grunt", 5000, 89)
o = Organization()
o.add_employee(e1)
o.add_employee(e2, 1)
o.add_employee(e3, 1)
o.add_employee(e4, 3)
o.add_employee(e5, 3)
o.fire_lowest_rated_employee()
assert e1.get_direct_subordinates() == [e2, e4, e5]
assert e4.get_superior() == e1
assert e5.get_superior() == e1
def test_fire_lowest_employee_new_head() -> None:
e1 = Leader(1, "Sarah", "CEO", 500000, 1, "Some Corp.")
e2 = Employee(2, "Sandra", "Secretary", 20000, 99)
e3 = Employee(3, "Sofia", "Manager", 25000, 89)
e4 = Employee(4, "Senya", "Grunt", 5000, 89)
e5 = Employee(5, "Sylvia", "Grunt", 5000, 89)
e6 = Employee(6, "Savannah", "Wedding Officiate", 5000, 50)
o = Organization()
o.add_employee(e1)
o.add_employee(e2, 1)
o.add_employee(e3, 1)
o.add_employee(e4, 3)
o.add_employee(e5, 3)
o.add_employee(e6, 2)
o.fire_lowest_rated_employee()
assert o.get_head().eid == 2
assert o.get_head().get_direct_subordinates() == [e3, e6]
assert e3.get_superior() == e2
def test_fire_lowest_rated() -> None:
o = Organization()
e1 = Employee(1, "e1", "a", 1, 1)
e2 = Employee(2, "e2", "a", 1, 2)
e3 = Employee(3, "e3", "a", 1, 3)
e4 = Employee(4, "e4", "a", 1, 4)
e5 = Employee(5, "e5", "a", 1, 5)
e6 = Employee(6, "e6", "a", 1, 6)
e2.become_subordinate(e1)
e3.become_subordinate(e1)
e4.become_subordinate(e3)
e5.become_subordinate(e3)
e6.become_subordinate(e5)
o.add_employee(e1)
assert o.get_head() == e1
o.fire_lowest_rated_employee()
assert o.get_head() == e3
o.fire_lowest_rated_employee()
assert o.get_head() == e3
o.fire_lowest_rated_employee()
o.fire_lowest_rated_employee()
o.fire_lowest_rated_employee()
assert o.get_head() == e6
class OrganizationSimulator:
"""OrganizationSimulator: a class that stores information about the current
state of a simulated organization.
=== Public Attributes ===
current_employee:
The Employee currently beieng displayed in the simulation.
current_subordinates:
The list of subordinates currently being displayed in the simulation.
displaying_direct:
Whether the current_subordinates being displayed are only the direct
subordinates of current_employee or not.
current_organization:
The Organization currently being displayed in the simulation.
"""
current_employee: Optional[Employee]
current_subordinates: List[Employee]
displaying_direct: bool
current_organization: Organization
def __init__(self) -> None:
"""Initialize this OrganizationSimulator with an empty Organization.
"""
self.current_organization = Organization()
self.current_employee = None
self.current_subordinates = []
self.displaying_direct = True
# TODO: === TASK 1 ===
# Go through the below methods to find methods that you'll need to implement
# in organization_hierarchy.py.
def display_employee(self, eid: int) -> None:
"""Update self.current_employee to be the employee with the ID <eid>.
If no such employee exist, self.current_employee should be None.
"""
self.current_employee = self.current_organization.get_employee(eid)
def get_current_employee_details(self) -> Tuple[str, float, int, str, str]:
"""Return the self.current_employee's name, salary, position, and
department.
"""
if self.current_employee:
return (self.current_employee.name, self.current_employee.salary,
self.current_employee.rating,
self.current_employee.position,
self.get_current_employee_department())
return "", 0.0, 0, "", ""
def get_current_superior(self) -> Optional[Employee]:
"""Return the superior of self.current_employee.
Pre-condition: self.current_employee has a superior (i.e. they are not
the head of the organization.)
"""
if self.current_employee:
return self.current_employee.get_superior()
return None
def create_employee(self, name: str, eid: int, salary: float, rating: int,
position: str, superior_id: int) -> None:
"""Create the Employee with the name <name>, ID <eid>, salary <salary>,
position <position>, rating <rating>, and set their superior to be the
employee with ID <superior_id>.
If <superior_id> == 0, this employee is the new head of the
organization.
If <eid> is already in use or < 0, then pick the next free ID number as
the ID.
Pre-condition: <superior_id> == 0 or is an ID that appears in the
organization.
"""
# Find the next free id if eid is already taken or is < 1
if eid < 1 or self.current_organization.get_employee(eid) is not None:
eid = self.current_organization.get_next_free_id()
# Create the employee
new_employee = Employee(eid, name, position, salary, rating)
# Add the employee to the organization
if superior_id <= 0:
self.current_organization.add_employee(new_employee)
else:
self.current_organization.add_employee(new_employee, superior_id)
self.display_employee(eid)
def find_employees_with_position(self, position: str) -> List[Employee]:
"""Return a list of employees in self.current_organization with the
position named <position> in order of increasing eids.
"""
return self.current_organization.get_employees_with_position(position)
def get_average_salary(self) -> float:
"""Return the average salary of all employees in
self.current_organization.
If there are no employees in self.current_organization, return 0.0
"""
return self.current_organization.get_average_salary()
def get_average_salary_for_position(self, position: str) -> float:
"""Return self.current_organization's average salary for all employees
with the position <position>. Return 0.0 if no such employees exist.
"""
return self.current_organization.get_average_salary(position)
def display_direct_subordinates(self) -> None:
"""Update the list of subordinates to display self.current_employee's
direct subordinates.
Subordinates must be in order of increasing eids.
"""
self.displaying_direct = True
if self.current_employee:
self.current_subordinates = \
self.current_employee.get_direct_subordinates()
def display_all_subordinates(self) -> None:
"""Update the list of subordinates to display all of
self.current_employee's subordinates.
Subordinates must be in order of increasing eids.
"""
self.displaying_direct = False
if self.current_employee:
self.current_subordinates = \
self.current_employee.get_all_subordinates()
def get_higher_paid_employees(self) -> List[Employee]:
"""Return a list of all employees in the Organization that are paid more
than self.current_employee.
Employees must be returned with IDs in increasing order.
"""
return self.current_employee.get_higher_paid_employees()
def get_organization_head(self) -> Employee:
"""Return the head of the organization.
The head of the organization is defined as the employee that does not
have any superiors.
"""
return self.current_employee.get_organization_head()
def get_common_superior(self, eid: int) -> Employee:
"""Return the closest common superior in the organization between
self.current_employee and the employee with ID <eid>.
Precondition: <eid> exists in the organization.
"""
return self.current_employee.get_closest_common_superior(eid)
# TODO: === TASK 2 ===
# Go through the below methods to find methods that you'll need to implement
# in organization_hierarchy.py.
def is_leader(self) -> bool:
"""Return True if self.current_employee is a Leader.
"""
return isinstance(self.current_employee, Leader)
def get_current_employee_department(self) -> str:
"""Return the department that self.current_employee belongs to.
If self.current_employee is not part of any department, return "".
"""
if self.current_employee:
return self.current_employee.get_department_name()
return ""
def get_position_in_hierarchy(self) -> str:
"""Return the full position of self.current_employee.
The full position takes the form:
<self.current_employee's position>
Followed by a comma separating any departments they're a part of (from
their immediate department, to the department that one belongs to, and
so on.)
"""
return self.current_employee.get_position_in_hierarchy()
def find_department_employees(self) -> List[Employee]:
"""Return a list of employees in self.current_employee's department.
Pre-condition: self.current_employee is a Leader.
"""
return self.current_employee.get_department_employees()
# TODO: === TASK 3 ===
# Go through the below methods to find methods that you'll need to implement
# in organization_hierarchy.py.
def take_over_department(self) -> None:
"""Makes self.current_employee the leader of their current department,
becoming the superior of the current department leader.
self.current_employee keeps all of their subordinates, in addition
to gaining the leader as a subordinate.
If self.current_employee is already a leader or does not belong to a
department, nothing happens.
"""
# Keep the employee's ID number so we can update self.current_employee
# to the leader version afterwards.
eid = self.current_employee.eid
organization_head = self.current_employee.change_department_leader()
self.current_organization.set_head(organization_head)
# Update the current employee being displayed
self.current_employee = self.current_organization.get_employee(eid)
def become_leader(self, department_name: str) -> None:
"""Make self.current_employee the leader of a new department with the
name <department_name>.
If self.current_employee is already a leader, changes the name of their
department to department_name.
"""
# Keep the employee's ID number so we can update self.current_employee
# to the leader version afterwards.
eid = self.current_employee.eid
leader = self.current_employee.become_leader(department_name)
self.current_organization.set_head(leader.get_organization_head())
# Update the current employee being displayed
self.current_employee = self.current_organization.get_employee(eid)
def become_employee(self) -> None:
"""Make self.current_employee an employee instead of a leader.
Pre-condition: self.current_employee is a Leader.
"""
# Keep the employee's ID number so we can update self.current_employee
# to the employee version afterwards.
eid = self.current_employee.eid
employee = self.current_employee.become_employee()
self.current_organization.set_head(employee.get_organization_head())
# Update the current employee being displayed
self.current_employee = self.current_organization.get_employee(eid)
# TODO: === TASK 4 ===
# Go through the below methods to find methods that you'll need to implement
# in organization_hierarchy.py.
def obtain_subordinates(self, ids: List[int]) -> None:
"""Set the employees with IDs in ids as subordinates of
self.current_employee.
If those employees have subordinates, the superior of those subordinates
becomes the employee's original superior.
Pre-condition: self.current_employee's id is not in ids.
"""
organization_head = self.current_employee.obtain_subordinates(ids)
self.current_organization.set_head(organization_head)
def fire_employee(self, eid: int) -> None:
"""Fire the employee with ID eid from self.current_organization.
Pre-condition: there is an employee with the eid <eid> in
self.current_organization.
"""
previous_id = self.current_employee.eid
self.current_organization.fire_employee(eid)
if previous_id == eid:
self.current_employee = self.current_organization.get_head()
def fire_lowest_rated_employee(self) -> None:
"""Fire the lowest rated employee in self.current_organization.
If two employees have the same rating, the one with the lowest id
is fired.
"""
self.current_organization.fire_lowest_rated_employee()
# Update the display if the previous self.current_employee is no longer
# in the organization
eid = self.current_employee.eid
if not self.current_organization.get_employee(eid):
self.current_employee = self.current_organization.get_head()
def fire_under_rating(self, rating: int) -> None:
"""Fire all employees with a rating below rating.
Employees should be fired in order of increasing rating: the lowest
rated employees are to be removed first. Break ties in order of eid.
"""
self.current_organization.fire_under_rating(rating)
# Update the display if the previous self.current_employee is no longer
# in the organization
eid = self.current_employee.eid
if not self.current_organization.get_employee(eid):
self.current_employee = self.current_organization.get_head()
def promote_employee(self, eid: int) -> None:
"""Promote the employee with the eid <eid> in self.current_organization
until they have a superior with a higher rating than them or until they
are the head of the organization.
Precondition: There is an employee in self.current_organization with
eid <eid>.
"""
self.current_organization.promote_employee(eid)
self.current_employee = \
self.current_organization.get_employee(self.current_employee.eid)
# === TASK 5 ===
# TODO: Implement create_department_salary_tree in organization_hierarchy.py
def get_department_salary_tree(self) -> DepartmentSalaryTree:
"""Return the DepartmentSalaryTree that corresponds to
self.current_organization.
"""
return create_department_salary_tree(self.current_organization)
# === TASK 6 ===
# TODO: Implement create_organization_from_file in organization_hierarchy.py
def file_to_organization(self, filename: str) -> None:
"""Read the organization data in the file named filename, creating an
organization from it and setting it as self.current_organization.
Set the current employee to the head of the organization.
"""
f = open(filename)
self.current_organization = create_organization_from_file(f)
self.current_employee = self.current_organization.get_head()