def test_create_schedules_throws_when_no_schedules_are_possible(self):
""" Tests that create_schedules throws an appropriate error message when all
sections for the chosen courses overlap, meaning no schedules are possible.
"""
# Arrange
courses = (
CourseFilter('CSCE', '221', include_full=True),
CourseFilter('CSCE', '310', section_nums=['501']),
)
term = '201931'
unavailable_times = []
meetings = [
Meeting(id=10,
meeting_days=[True] * 7,
start_time=time(0, 0),
end_time=time(23, 59),
meeting_type='LEC',
section=self.sections[0]),
Meeting(id=80,
meeting_days=[True] * 7,
start_time=time(0, 0),
end_time=time(23, 59),
meeting_type='LEC',
section=self.sections[7]),
]
Meeting.objects.bulk_create(meetings)
expected_error = _NO_SCHEDULES_POSSIBLE
# Act + Assert
with self.assertRaisesMessage(NoSchedulesError, expected_error):
create_schedules(courses, term, unavailable_times)
def test_create_schedules_uses_unavailable_times(self):
""" Tests that create_schedule filters out the provided unavailable_times. """
# There are 4 possible schedules to generate, 1 is valid given the
# unavailable times
# Arrange
courses = (
CourseFilter("CSCE", "310"),
CourseFilter("CSCE", "121",
honors=BasicFilter.NO_PREFERENCE,
web=BasicFilter.NO_PREFERENCE)
)
term = "201931"
include_full = True
unavailable_times = [UnavailableTime(time(9, 1), time(9, 2), 4)]
meetings = [
# Meetings for CSCE 310-501
Meeting(id=10, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[0]),
Meeting(id=11, meeting_days=[True] * 7, start_time=time(9),
end_time=time(9, 50), meeting_type='LEC', section=self.sections[0]),
# Meetings for CSCE 310-502
Meeting(id=20, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[1]),
Meeting(id=21, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[1]),
# Meetings for CSCE 121-501
Meeting(id=40, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[3]),
Meeting(id=41, meeting_days=[True] * 7, start_time=time(9, 10),
end_time=time(10), meeting_type='LAB', section=self.sections[3]),
# Meetings for CSCE 121-502
Meeting(id=50, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[4]),
Meeting(id=51, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[4]),
]
Meeting.objects.bulk_create(meetings)
expected_schedules = set(((2, 5),))
# Act
schedules = set(create_schedules(courses, term, unavailable_times, include_full,
num_schedules=10))
# Act
print('calculator')
print(schedules)
print(expected_schedules)
self.assertEqual(schedules, expected_schedules)
def test__get_meetings_gets_all_meetings(self):
""" Tests that _get_meetings gets all sections/meetings for the specified term
and groups them correctly
"""
# Arrange
course = CourseFilter("CSCE", "310")
term = "201931"
include_full = True
unavailable_times = []
meetings = [
# Meetings for CSCE 310-501
Meeting(id=10, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[0]),
Meeting(id=11, meeting_days=[True] * 7, start_time=time(9),
end_time=time(9, 50), meeting_type='LEC', section=self.sections[0]),
# Meetings for CSCE 310-502
Meeting(id=20, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[1]),
Meeting(id=21, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[1]),
# Meetings for CSCE 310-503
Meeting(id=30, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[2]),
Meeting(id=31, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[2]),
]
Meeting.objects.bulk_create(meetings)
valid_sections = set((1, 2))
meetings_for_sections = {1: meetings[0:2], 2: meetings[2:4]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_filters_full(self):
""" Tests that _get_meetings filters sections with no available seats if the
include_full attribute of the CourseFilter is False
"""
# Arrange
course = CourseFilter("CSCE", "121")
term = "201931"
include_full = False
unavailable_times = []
meetings = [
# Meetings for CSCE 121-501
Meeting(id=40, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[3]),
Meeting(id=41, meeting_days=[True] * 7, start_time=time(9, 10),
end_time=time(10), meeting_type='LAB', section=self.sections[3]),
# Meetings for CSCE 121-502
Meeting(id=50, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[4]),
Meeting(id=51, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[4]),
]
Meeting.objects.bulk_create(meetings)
# Section 502 should be filtered because it has no available seats
valid_sections = set((4,))
meetings_for_sections = {4: meetings[0:2]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_filters_non_web(self):
""" Tests that _get_meetings filters non-web sections if the web attribute
of the CourseFilter is 'only'
"""
# Arrange
course = CourseFilter("CSCE", "121", web=BasicFilter.ONLY)
term = "201931"
include_full = True
unavailable_times = []
meetings = [
# Meetings for CSCE 121-501
Meeting(id=40, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[3]),
Meeting(id=41, meeting_days=[True] * 7, start_time=time(9, 10),
end_time=time(10), meeting_type='LAB', section=self.sections[3]),
# Meetings for CSCE 121-502
Meeting(id=50, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[4]),
Meeting(id=51, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[4]),
]
Meeting.objects.bulk_create(meetings)
# Section 501 should be filtered because it isn't a web section
valid_sections = set((5,))
meetings_for_sections = {5: meetings[2:]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_filters_honors(self):
""" Tests that _get_meetings filters honors sections if the honors attribute
of the CourseFilter is 'exclude'
"""
# Arrange
course = CourseFilter("CSCE", "121",
honors=BasicFilter.EXCLUDE,
web=BasicFilter.NO_PREFERENCE)
term = "201931"
include_full = True
unavailable_times = []
meetings = [
# Meetings for CSCE 121-502
Meeting(id=50, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[4]),
Meeting(id=51, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[4]),
# Meetings for CSCE 121-201
Meeting(id=60, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[5]),
Meeting(id=61, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[5]),
]
Meeting.objects.bulk_create(meetings)
# Section 201 should be filtered because it is an honors section
valid_sections = set((5,))
meetings_for_sections = {5: meetings[0:2]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_filters_section_nums(self):
""" Tests that _get_meetings filters sections not in the CourseFilter's
section_nums
"""
# Arrange
course = CourseFilter("CSCE", "310", section_nums=[501])
term = "201931"
include_full = True
unavailable_times = []
meetings = [
# Meetings for CSCE 310-501
Meeting(id=10, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[0]),
Meeting(id=11, meeting_days=[True] * 7, start_time=time(9),
end_time=time(9, 50), meeting_type='LEC', section=self.sections[0]),
# Meetings for CSCE 310-502
Meeting(id=20, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[1]),
Meeting(id=21, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[1]),
]
Meeting.objects.bulk_create(meetings)
# Section 502 should be filtered because it isn't in section_nums
valid_sections = set((1,))
meetings_for_sections = {1: meetings[0:2]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_handles_unavailability(self):
""" Tests that _get_meetings filters sections with meetings conflicting
with the given unavailable_times
"""
# Arrange
course = CourseFilter("CSCE", "310")
term = "201931"
include_full = True
unavailable_times = (UnavailableTime(time(8), time(8, 30), 4),)
meetings = [
# Meetings for CSCE 310-501
Meeting(id=10, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[0]),
Meeting(id=11, meeting_days=[True] * 7, start_time=time(9),
end_time=time(9, 50), meeting_type='LEC', section=self.sections[0]),
# Meetings for CSCE 310-502
Meeting(id=20, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[1]),
Meeting(id=21, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[1]),
]
Meeting.objects.bulk_create(meetings)
# Section 502 should be filtered because of the unavailable time
valid_sections = set((1,))
meetings_for_sections = {1: meetings[0:2]}
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test_parse_course_filter_is_correct(self):
""" Tests that _parse_counter_filter works on a typical input """
# Arrange
course = {
"subject": "CSCE",
"courseNum": "121",
"sections": ["500"],
"honors": "exclude",
"remote": "exclude",
"asynchronous": "exclude",
"includeFull": False,
}
expected = CourseFilter(subject="CSCE",
course_num="121",
section_nums=["500"],
honors=BasicFilter.EXCLUDE,
remote=BasicFilter.EXCLUDE,
asynchronous=BasicFilter.EXCLUDE,
include_full=False)
# Act
result = _parse_course_filter(course)
# Assert
self.assertEqual(result, expected)
def test_create_schedules_creates_all_valid_schedules(self):
""" Tests that create_schedules makes all valid schedules and doesn't
return any invalid ones
"""
# There are 4 possible schedules to generate, 2 are valid
# Arrange
courses = (
CourseFilter("CSCE", "310"),
CourseFilter("CSCE", "121",
honors=BasicFilter.NO_PREFERENCE,
web=BasicFilter.NO_PREFERENCE)
)
term = "201931"
include_full = True
unavailable_times = []
meetings = [
# Meetings for CSCE 310-501
Meeting(id=10, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[0]),
Meeting(id=11, meeting_days=[True] * 7, start_time=time(9),
end_time=time(9, 50), meeting_type='LEC', section=self.sections[0]),
# Meetings for CSCE 310-502
Meeting(id=20, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[1]),
Meeting(id=21, meeting_days=[True] * 7, start_time=time(8),
end_time=time(8, 50), meeting_type='LAB', section=self.sections[1]),
# Meetings for CSCE 121-501
Meeting(id=40, meeting_days=[True] * 7, start_time=time(11, 30),
end_time=time(12, 20), meeting_type='LEC', section=self.sections[3]),
Meeting(id=41, meeting_days=[True] * 7, start_time=time(9, 10),
end_time=time(10), meeting_type='LAB', section=self.sections[3]),
# Meetings for CSCE 121-502
Meeting(id=50, meeting_days=[True] * 7, start_time=time(12, 30),
end_time=time(1, 20), meeting_type='LEC', section=self.sections[4]),
Meeting(id=51, meeting_days=[True] * 7, start_time=time(10),
end_time=time(10, 50), meeting_type='LAB', section=self.sections[4]),
]
Meeting.objects.bulk_create(meetings)
expected_schedules = set(((1, 5), (2, 5)))
# Act
schedules = set(create_schedules(courses, term, unavailable_times, include_full,
num_schedules=10))
# Act
self.assertEqual(schedules, expected_schedules)
def handle(self, *args, **options):
# Setup data to create schedule from
course_names = [("COMM", "203"), ("CSCE", "121"), ("CSCE", "411"),
("MATH", "151"), ("CSCE", "181")]
courses = [
CourseFilter(subject, course_num)
for subject, course_num in course_names
]
courses[3] = CourseFilter("ACCT", "229", honors=True)
term = "201911"
unavailable_times = [
UnavailableTime(datetime.time(8), datetime.time(8, 50), 2),
UnavailableTime(datetime.time(8), datetime.time(8, 50), 3)
]
start = time()
schedules = create_schedules(courses, term, unavailable_times)
end = time()
print(f"Took {end - start:.4f} seconds to create schedules")
print(schedules)
def test__get_meetings_filters_asynchronous(self):
""" Tests that _get_meetings filters asynchronous sections if the
asynchrnous filter is 'exclude'
"""
# Arrange
course = CourseFilter("CSCE",
"121",
asynchronous=BasicFilter.EXCLUDE,
include_full=True)
term = "201931"
unavailable_times = []
meetings = [
# Meetings for CSCE 121-501
Meeting(id=40,
meeting_days=[True] * 7,
start_time=time(11, 30),
end_time=time(12, 20),
meeting_type='LEC',
section=self.sections[3]),
Meeting(id=41,
meeting_days=[True] * 7,
start_time=time(9, 10),
end_time=time(10),
meeting_type='LAB',
section=self.sections[3]),
# Meetings for CSCE 121-M99
Meeting(id=70,
meeting_days=[False] * 7,
start_time=None,
end_time=None,
meeting_type='LEC',
section=self.sections[6]),
Meeting(id=71,
meeting_days=[False] * 7,
start_time=None,
end_time=None,
meeting_type='LAB',
section=self.sections[6]),
]
Meeting.objects.bulk_create(meetings)
# Section 501 should be filtered because it isn't a remote section
valid_sections = set((4, ))
meetings_for_sections = {4: meetings[:2]}
# Act
result_meetings = _get_meetings(course, term, unavailable_times)
# Assert
self.assert_meetings_match_expected(result_meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_filters_non_honors(self):
""" Tests that _get_meetings filters out non-honors sections if the honors
attribute of the CourseFilter is 'only'
"""
# Arrange
course = CourseFilter("CSCE",
"121",
honors=BasicFilter.ONLY,
include_full=True)
term = "201931"
unavailable_times = []
meetings = [
# Meetings for CSCE 121-502
Meeting(id=50,
meeting_days=[True] * 7,
start_time=time(12, 30),
end_time=time(1, 20),
meeting_type='LEC',
section=self.sections[4]),
Meeting(id=51,
meeting_days=[True] * 7,
start_time=time(10),
end_time=time(10, 50),
meeting_type='LAB',
section=self.sections[4]),
# Meetings for CSCE 121-201
Meeting(id=60,
meeting_days=[True] * 7,
start_time=time(12, 30),
end_time=time(1, 20),
meeting_type='LEC',
section=self.sections[5]),
Meeting(id=61,
meeting_days=[True] * 7,
start_time=time(10),
end_time=time(10, 50),
meeting_type='LAB',
section=self.sections[5]),
]
Meeting.objects.bulk_create(meetings)
# Section 502 should be filtered because it isn't an honors section
valid_sections = set((6, ))
meetings_for_sections = {6: meetings[2:]}
# Act
meetings = _get_meetings(course, term, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test__get_meetings_handles_no_sections(self):
""" Tests that for a course with no sections, _get_meetings returns
empty reults
"""
# Arrange
course = CourseFilter("CSCE", "123")
term = "201931"
include_full = True
unavailable_times = []
# Act
meetings = _get_meetings(course, term, include_full, unavailable_times)
# Assert
self.assertFalse(meetings)
def test_create_schedules_throws_when_no_sections_have_seats(self):
""" Tests that create_schedules throws an appropriate error message when no
sections have available seats, and include_full is set to False.
"""
# Arrange
subject = 'CSCE'
course_num = '221'
courses = (CourseFilter(subject, course_num, include_full=False), )
term = '201931'
unavailable_times = []
expected_error = _NO_SECTIONS_WITH_SEATS.format(subject=subject,
course_num=course_num)
# Act + Assert
with self.assertRaisesMessage(NoSchedulesError, expected_error):
create_schedules(courses, term, unavailable_times)
def test_create_shedules_throws_when_no_sections_match_basic_filters(self):
""" Tests that create_schedules throws an appropriate error message when no
sections match the provided basic filters.
"""
# Arrange
subject = 'CSCE'
course_num = '2212'
courses = (CourseFilter(subject,
course_num,
honors=BasicFilter.ONLY,
include_full=True), )
term = '201931'
unavailable_times = []
expected_error = _BASIC_FILTERS_TOO_RESTRICTIVE.format(
subject=subject, course_num=course_num)
# Act + Assert
with self.assertRaisesMessage(NoSchedulesError, expected_error):
create_schedules(courses, term, unavailable_times)
def _parse_course_filter(course) -> CourseFilter:
""" Parses the given course to retrieve and convert it to a CourseFilter object
to be used in create_schedules
"""
# Can assume subject & course_num will be given as strings
subject = course["subject"]
course_num = course["courseNum"]
sections = course.get("sections", [])
honors = BasicFilter(course.get("honors"))
remote = BasicFilter(course.get("remote"))
asynchronous = BasicFilter(course.get("asynchronous"))
include_full = course.get("includeFull")
return CourseFilter(subject=subject, course_num=course_num, section_nums=sections,
honors=honors, remote=remote, asynchronous=asynchronous,
include_full=include_full)
def _parse_course_filter(course) -> CourseFilter:
""" Parses the given course to retrieve and convert it to a CourseFilter object
to be used in create_schedules
"""
# Can assume subject & course_num will be given as strings
subject = course["subject"]
course_num = course["courseNum"]
sections = course.get("sections", [])
honors = BasicFilter(course.get("honors"))
web = BasicFilter(course.get("web"))
return CourseFilter(subject=subject,
course_num=course_num,
section_nums=sections,
honors=honors,
web=web)
def test_create_schedules_throws_when_no_sections_match_availability(self):
""" Tests that create_schedules throws an appropriate error message when no
sections match the selected availabilities.
"""
# Arrange
subject = 'CSCE'
course_num = '221'
courses = (CourseFilter(subject, course_num, include_full=True), )
term = '201931'
unavailable_times = [UnavailableTime(time(0, 0), time(23, 59), 0)]
Meeting(id=80,
meeting_days=[True, *[False] * 6],
start_time=time(0, 0),
end_time=time(23, 59),
meeting_type='LEC',
section=self.sections[7]).save()
expected_error = _NO_SECTIONS_MATCH_AVAILABILITIES.format(
subject=subject, course_num=course_num)
# Act + Assert
with self.assertRaisesMessage(NoSchedulesError, expected_error):
create_schedules(courses, term, unavailable_times)
def test__get_meetings_manually_selected_sections_override_include_full(
self):
""" Tests that _get_meetings does not filter full sections selected in section
select when include_full is false
"""
# Arrange
# section chosen because it is full
section_nums = ["502"]
course = CourseFilter("CSCE",
"121",
section_nums=section_nums,
include_full=False)
term = "201931"
unavailable_times = []
meetings = [
# Meetings for CSCE 121-502
Meeting(id=1,
meeting_days=[True] * 7,
start_time=time(12, 30),
end_time=time(1, 20),
meeting_type='LEC',
section=self.sections[4]),
Meeting(id=51,
meeting_days=[True] * 7,
start_time=time(10),
end_time=time(10, 50),
meeting_type='LAB',
section=self.sections[4]),
]
Meeting.objects.bulk_create(meetings)
valid_sections = set((5, ))
meetings_for_sections = {5: meetings[0:]}
# Act
meetings = _get_meetings(course, term, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
def test_parse_course_filter_is_correct(self):
""" Tests that _parse_counter_filter works on a typical input """
# Arrange
course = {
"subject": "CSCE",
"courseNum": "121",
"sections": ["500"],
"honors": "exclude",
"web": "exclude",
}
expected = CourseFilter(subject="CSCE",
course_num="121",
section_nums=["500"],
honors=BasicFilter.EXCLUDE,
web=BasicFilter.EXCLUDE)
# Act
result = _parse_course_filter(course)
# Assert
self.assertEqual(result, expected)
def test__get_meetings_filters_remote(self):
""" Tests that _get_meetings filters remote sections if the honors attribute
of the CourseFilter is 'exclude'
"""
# Arrange
course = CourseFilter("CSCE",
"121",
remote=BasicFilter.EXCLUDE,
include_full=True)
term = "201931"
unavailable_times = []
meetings = [
# Meetings for CSCE 121-501
Meeting(id=40,
meeting_days=[True] * 7,
start_time=time(11, 30),
end_time=time(12, 20),
meeting_type='LEC',
section=self.sections[3]),
Meeting(id=41,
meeting_days=[True] * 7,
start_time=time(9, 10),
end_time=time(10),
meeting_type='LAB',
section=self.sections[3]),
# Meetings for CSCE 121-502
Meeting(id=50,
meeting_days=[True] * 7,
start_time=time(12, 30),
end_time=time(1, 20),
meeting_type='LEC',
section=self.sections[4]),
Meeting(id=51,
meeting_days=[True] * 7,
start_time=time(10),
end_time=time(10, 50),
meeting_type='LAB',
section=self.sections[4]),
# Meetings for CSCE 121-M99
Meeting(id=70,
meeting_days=[False] * 7,
start_time=None,
end_time=None,
meeting_type='LEC',
section=self.sections[6]),
Meeting(id=71,
meeting_days=[False] * 7,
start_time=None,
end_time=None,
meeting_type='LAB',
section=self.sections[6]),
]
Meeting.objects.bulk_create(meetings)
# Section M99 should be filtered because it's a remote section
valid_sections = set((4, 5))
meetings_for_sections = {4: meetings[0:2], 5: meetings[2:4]}
# Act
meetings = _get_meetings(course, term, unavailable_times)
# Assert
self.assert_meetings_match_expected(meetings, valid_sections,
meetings_for_sections)
