def test_assignment_format_grader(self):
homework_grader = graders.AssignmentFormatGrader("Homework", 12, 2)
no_drop_grader = graders.AssignmentFormatGrader("Homework", 12, 0)
# Even though the minimum number is 3, this should grade correctly when 7 assignments are found
overflow_grader = graders.AssignmentFormatGrader("Lab", 3, 2)
lab_grader = graders.AssignmentFormatGrader("Lab", 7, 3)
# Test the grading of an empty gradesheet
for graded in [
homework_grader.grade(self.empty_gradesheet),
no_drop_grader.grade(self.empty_gradesheet),
homework_grader.grade(self.incomplete_gradesheet),
no_drop_grader.grade(self.incomplete_gradesheet),
]:
self.assertAlmostEqual(graded['percent'], 0.0)
# Make sure the breakdown includes 12 sections, plus one summary
self.assertEqual(len(graded['section_breakdown']), 12 + 1)
graded = homework_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.11) # 100% + 10% / 10 assignments
self.assertEqual(len(graded['section_breakdown']), 12 + 1)
graded = no_drop_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0916666666666666) # 100% + 10% / 12 assignments
self.assertEqual(len(graded['section_breakdown']), 12 + 1)
graded = overflow_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.8879999999999999) # 100% + 10% / 5 assignments
self.assertEqual(len(graded['section_breakdown']), 7 + 1)
graded = lab_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.92249999999999999)
self.assertEqual(len(graded['section_breakdown']), 7 + 1)
def test_weighted_subsections_grader(self):
# First, a few sub graders
homework_grader = graders.AssignmentFormatGrader("Homework", 12, 2)
lab_grader = graders.AssignmentFormatGrader("Lab", 7, 3)
# phasing out the use of SingleSectionGraders, and instead using AssignmentFormatGraders that
# will act like SingleSectionGraders on single sections.
midterm_grader = graders.AssignmentFormatGrader("Midterm", 1, 0)
weighted_grader = graders.WeightedSubsectionsGrader([(homework_grader, homework_grader.category, 0.25),
(lab_grader, lab_grader.category, 0.25),
(midterm_grader, midterm_grader.category, 0.5)])
over_one_weights_grader = graders.WeightedSubsectionsGrader([(homework_grader, homework_grader.category, 0.5),
(lab_grader, lab_grader.category, 0.5),
(midterm_grader, midterm_grader.category, 0.5)])
# The midterm should have all weight on this one
zero_weights_grader = graders.WeightedSubsectionsGrader([(homework_grader, homework_grader.category, 0.0),
(lab_grader, lab_grader.category, 0.0),
(midterm_grader, midterm_grader.category, 0.5)])
# This should always have a final percent of zero
all_zero_weights_grader = graders.WeightedSubsectionsGrader([(homework_grader, homework_grader.category, 0.0),
(lab_grader, lab_grader.category, 0.0),
(midterm_grader, midterm_grader.category, 0.0)])
empty_grader = graders.WeightedSubsectionsGrader([])
graded = weighted_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.5106547619047619)
self.assertEqual(len(graded['section_breakdown']), (12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = over_one_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.7688095238095238)
self.assertEqual(len(graded['section_breakdown']), (12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = zero_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.2525)
self.assertEqual(len(graded['section_breakdown']), (12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = all_zero_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']), (12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
for graded in [weighted_grader.grade(self.empty_gradesheet),
weighted_grader.grade(self.incomplete_gradesheet),
zero_weights_grader.grade(self.empty_gradesheet),
all_zero_weights_grader.grade(self.empty_gradesheet)]:
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']), (12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = empty_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']), 0)
self.assertEqual(len(graded['grade_breakdown']), 0)
def test_assignment_format_grader_on_single_section_entry(self):
midterm_grader = graders.AssignmentFormatGrader("Midterm", 1, 0)
# Test the grading on a section with one item:
for graded in [midterm_grader.grade(self.empty_gradesheet),
midterm_grader.grade(self.incomplete_gradesheet)]:
self.assertAlmostEqual(graded['percent'], 0.0)
# Make sure the breakdown includes just the one summary
self.assertEqual(len(graded['section_breakdown']), 0 + 1)
self.assertEqual(graded['section_breakdown'][0]['label'], 'Midterm')
graded = midterm_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.505)
self.assertEqual(len(graded['section_breakdown']), 0 + 1)
def test_grader_from_conf(self):
# Confs always produce a graders.WeightedSubsectionsGrader, so we test this by repeating the test
# in test_graders.WeightedSubsectionsGrader, but generate the graders with confs.
weighted_grader = graders.grader_from_conf([
{
'type': "Homework",
'min_count': 12,
'drop_count': 2,
'short_label': "HW",
'weight': 0.25,
},
{
'type': "Lab",
'min_count': 7,
'drop_count': 3,
'category': "Labs",
'weight': 0.25
},
{
'type': "Midterm",
'min_count': 0,
'drop_count': 0,
'name': "Midterm Exam",
'short_label': "Midterm",
'weight': 0.5,
},
])
empty_grader = graders.grader_from_conf([])
graded = weighted_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.50812499999999994)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = empty_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']), 0)
self.assertEqual(len(graded['grade_breakdown']), 0)
# Test that graders can also be used instead of lists of dictionaries
homework_grader = graders.AssignmentFormatGrader("Homework", 12, 2)
homework_grader2 = graders.grader_from_conf(homework_grader)
graded = homework_grader2.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.11)
self.assertEqual(len(graded['section_breakdown']), 12 + 1)
def test_assignment_format_grader_on_single_section_entry(self):
midterm_grader = graders.AssignmentFormatGrader("Midterm", 1, 0)
# Test the grading on a section with one item:
for graded in [
midterm_grader.grade(self.empty_gradesheet),
midterm_grader.grade(self.incomplete_gradesheet),
]:
assert round(graded['percent'] - 0.0, 7) >= 0
# Make sure the breakdown includes just the one summary
assert len(graded['section_breakdown']) == (0 + 1)
assert graded['section_breakdown'][0]['label'] == 'Midterm'
graded = midterm_grader.grade(self.test_gradesheet)
assert round(graded['percent'] - 0.5, 7) >= 0
assert len(graded['section_breakdown']) == (0 + 1)
def test_weighted_subsections_grader(self):
# First, a few sub graders
homework_grader = graders.AssignmentFormatGrader("Homework", 12, 2)
lab_grader = graders.AssignmentFormatGrader("Lab", 7, 3)
midterm_grader = graders.AssignmentFormatGrader("Midterm", 1, 0)
weighted_grader = graders.WeightedSubsectionsGrader([
(homework_grader, homework_grader.category, 0.25),
(lab_grader, lab_grader.category, 0.25),
(midterm_grader, midterm_grader.category, 0.5),
])
over_one_weights_grader = graders.WeightedSubsectionsGrader([
(homework_grader, homework_grader.category, 0.5),
(lab_grader, lab_grader.category, 0.5),
(midterm_grader, midterm_grader.category, 0.5),
])
# The midterm should have all weight on this one
zero_weights_grader = graders.WeightedSubsectionsGrader([
(homework_grader, homework_grader.category, 0.0),
(lab_grader, lab_grader.category, 0.0),
(midterm_grader, midterm_grader.category, 0.5),
])
# This should always have a final percent of zero
all_zero_weights_grader = graders.WeightedSubsectionsGrader([
(homework_grader, homework_grader.category, 0.0),
(lab_grader, lab_grader.category, 0.0),
(midterm_grader, midterm_grader.category, 0.0),
])
empty_grader = graders.WeightedSubsectionsGrader([])
graded = weighted_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.50812499999999994)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = over_one_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.76624999999999999)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = zero_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.25)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = all_zero_weights_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
for graded in [
weighted_grader.grade(self.empty_gradesheet),
weighted_grader.grade(self.incomplete_gradesheet),
zero_weights_grader.grade(self.empty_gradesheet),
all_zero_weights_grader.grade(self.empty_gradesheet),
]:
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']),
(12 + 1) + (7 + 1) + 1)
self.assertEqual(len(graded['grade_breakdown']), 3)
graded = empty_grader.grade(self.test_gradesheet)
self.assertAlmostEqual(graded['percent'], 0.0)
self.assertEqual(len(graded['section_breakdown']), 0)
self.assertEqual(len(graded['grade_breakdown']), 0)
