274 lines
13 KiB
Python
274 lines
13 KiB
Python
import unittest
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import numpy
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import courseware.modules
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import courseware.capa.calc as calc
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import courseware.graders as graders
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from courseware.graders import Score, CourseGrader, WeightedSubsectionsGrader, SingleSectionGrader, AssignmentFormatGrader
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from courseware.grades import aggregate_scores
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class ModelsTest(unittest.TestCase):
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def setUp(self):
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pass
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def test_get_module_class(self):
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vc = courseware.modules.get_module_class('video')
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vc_str = "<class 'courseware.modules.video_module.Module'>"
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self.assertEqual(str(vc), vc_str)
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video_id = courseware.modules.get_default_ids()['video']
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self.assertEqual(video_id, 'youtube')
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def test_calc(self):
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variables={'R1':2.0, 'R3':4.0}
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functions={'sin':numpy.sin, 'cos':numpy.cos}
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self.assertTrue(abs(calc.evaluator(variables, functions, "10000||sin(7+5)+0.5356"))<0.01)
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self.assertEqual(calc.evaluator({'R1': 2.0, 'R3':4.0}, {}, "13"), 13)
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self.assertEqual(calc.evaluator(variables, functions, "13"), 13)
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self.assertEqual(calc.evaluator({'a': 2.2997471478310274, 'k': 9, 'm': 8, 'x': 0.66009498411213041}, {}, "5"), 5)
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self.assertEqual(calc.evaluator({},{}, "-1"), -1)
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self.assertEqual(calc.evaluator({},{}, "-0.33"), -.33)
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self.assertEqual(calc.evaluator({},{}, "-.33"), -.33)
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self.assertEqual(calc.evaluator(variables, functions, "R1*R3"), 8.0)
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self.assertTrue(abs(calc.evaluator(variables, functions, "sin(e)-0.41"))<0.01)
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self.assertTrue(abs(calc.evaluator(variables, functions, "k*T/q-0.025"))<0.001)
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self.assertTrue(abs(calc.evaluator(variables, functions, "e^(j*pi)")+1)<0.00001)
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self.assertTrue(abs(calc.evaluator(variables, functions, "j||1")-0.5-0.5j)<0.00001)
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exception_happened = False
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try:
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calc.evaluator({},{}, "5+7 QWSEKO")
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except:
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exception_happened = True
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self.assertTrue(exception_happened)
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try:
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calc.evaluator({'r1':5},{}, "r1+r2")
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except calc.UndefinedVariable:
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pass
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self.assertEqual(calc.evaluator(variables, functions, "r1*r3"), 8.0)
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exception_happened = False
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try:
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calc.evaluator(variables, functions, "r1*r3", cs=True)
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except:
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exception_happened = True
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self.assertTrue(exception_happened)
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class GradesheetTest(unittest.TestCase):
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def test_weighted_grading(self):
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scores = []
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Score.__sub__=lambda me, other: (me.earned - other.earned) + (me.possible - other.possible)
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all, graded = aggregate_scores(scores)
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self.assertEqual(all, Score(earned=0, possible=0, graded=False, section="summary"))
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self.assertEqual(graded, Score(earned=0, possible=0, graded=True, section="summary"))
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scores.append(Score(earned=0, possible=5, graded=False, section="summary"))
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all, graded = aggregate_scores(scores)
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self.assertEqual(all, Score(earned=0, possible=5, graded=False, section="summary"))
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self.assertEqual(graded, Score(earned=0, possible=0, graded=True, section="summary"))
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scores.append(Score(earned=3, possible=5, graded=True, section="summary"))
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all, graded = aggregate_scores(scores)
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self.assertAlmostEqual(all, Score(earned=3, possible=10, graded=False, section="summary"))
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self.assertAlmostEqual(graded, Score(earned=3, possible=5, graded=True, section="summary"))
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scores.append(Score(earned=2, possible=5, graded=True, section="summary"))
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all, graded = aggregate_scores(scores)
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self.assertAlmostEqual(all, Score(earned=5, possible=15, graded=False, section="summary"))
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self.assertAlmostEqual(graded, Score(earned=5, possible=10, graded=True, section="summary"))
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class GraderTest(unittest.TestCase):
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empty_gradesheet = {
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}
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incomplete_gradesheet = {
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'Homework': [],
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'Lab': [],
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'Midterm' : [],
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}
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test_gradesheet = {
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'Homework': [Score(earned=2, possible=20.0, graded=True, section='hw1'),
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Score(earned=16, possible=16.0, graded=True, section='hw2')],
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#The dropped scores should be from the assignments that don't exist yet
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'Lab': [Score(earned=1, possible=2.0, graded=True, section='lab1'), #Dropped
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Score(earned=1, possible=1.0, graded=True, section='lab2'),
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Score(earned=1, possible=1.0, graded=True, section='lab3'),
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Score(earned=5, possible=25.0, graded=True, section='lab4'), #Dropped
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Score(earned=3, possible=4.0, graded=True, section='lab5'), #Dropped
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Score(earned=6, possible=7.0, graded=True, section='lab6'),
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Score(earned=5, possible=6.0, graded=True, section='lab7')],
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'Midterm' : [Score(earned=50.5, possible=100, graded=True, section="Midterm Exam"),],
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}
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def test_SingleSectionGrader(self):
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midtermGrader = graders.SingleSectionGrader("Midterm", "Midterm Exam")
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lab4Grader = graders.SingleSectionGrader("Lab", "lab4")
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badLabGrader = graders.SingleSectionGrader("Lab", "lab42")
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for graded in [midtermGrader.grade(self.empty_gradesheet),
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midtermGrader.grade(self.incomplete_gradesheet),
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badLabGrader.grade(self.test_gradesheet)]:
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self.assertEqual( len(graded['section_breakdown']), 1 )
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self.assertEqual( graded['percent'], 0.0 )
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graded = midtermGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.505 )
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self.assertEqual( len(graded['section_breakdown']), 1 )
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graded = lab4Grader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.2 )
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self.assertEqual( len(graded['section_breakdown']), 1 )
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def test_AssignmentFormatGrader(self):
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homeworkGrader = graders.AssignmentFormatGrader("Homework", 12, 2)
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noDropGrader = graders.AssignmentFormatGrader("Homework", 12, 0)
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#Even though the minimum number is 3, this should grade correctly when 7 assignments are found
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overflowGrader = graders.AssignmentFormatGrader("Lab", 3, 2)
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labGrader = graders.AssignmentFormatGrader("Lab", 7, 3)
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#Test the grading of an empty gradesheet
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for graded in [ homeworkGrader.grade(self.empty_gradesheet),
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noDropGrader.grade(self.empty_gradesheet),
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homeworkGrader.grade(self.incomplete_gradesheet),
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noDropGrader.grade(self.incomplete_gradesheet) ]:
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self.assertAlmostEqual( graded['percent'], 0.0 )
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#Make sure the breakdown includes 12 sections, plus one summary
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self.assertEqual( len(graded['section_breakdown']), 12 + 1 )
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graded = homeworkGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.11 ) # 100% + 10% / 10 assignments
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self.assertEqual( len(graded['section_breakdown']), 12 + 1 )
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graded = noDropGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.0916666666666666 ) # 100% + 10% / 12 assignments
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self.assertEqual( len(graded['section_breakdown']), 12 + 1 )
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graded = overflowGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.8880952380952382 ) # 100% + 10% / 5 assignments
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self.assertEqual( len(graded['section_breakdown']), 7 + 1 )
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graded = labGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.9226190476190477 )
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self.assertEqual( len(graded['section_breakdown']), 7 + 1 )
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def test_WeightedSubsectionsGrader(self):
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#First, a few sub graders
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homeworkGrader = graders.AssignmentFormatGrader("Homework", 12, 2)
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labGrader = graders.AssignmentFormatGrader("Lab", 7, 3)
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midtermGrader = graders.SingleSectionGrader("Midterm", "Midterm Exam")
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weightedGrader = graders.WeightedSubsectionsGrader( [(homeworkGrader, homeworkGrader.category, 0.25), (labGrader, labGrader.category, 0.25),
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(midtermGrader, midtermGrader.category, 0.5)] )
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overOneWeightsGrader = graders.WeightedSubsectionsGrader( [(homeworkGrader, homeworkGrader.category, 0.5), (labGrader, labGrader.category, 0.5),
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(midtermGrader, midtermGrader.category, 0.5)] )
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#The midterm should have all weight on this one
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zeroWeightsGrader = graders.WeightedSubsectionsGrader( [(homeworkGrader, homeworkGrader.category, 0.0), (labGrader, labGrader.category, 0.0),
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(midtermGrader, midtermGrader.category, 0.5)] )
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#This should always have a final percent of zero
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allZeroWeightsGrader = graders.WeightedSubsectionsGrader( [(homeworkGrader, homeworkGrader.category, 0.0), (labGrader, labGrader.category, 0.0),
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(midtermGrader, midtermGrader.category, 0.0)] )
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emptyGrader = graders.WeightedSubsectionsGrader( [] )
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graded = weightedGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.5106547619047619 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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graded = overOneWeightsGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.7688095238095238 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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graded = zeroWeightsGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.2525 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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graded = allZeroWeightsGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.0 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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for graded in [ weightedGrader.grade(self.empty_gradesheet),
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weightedGrader.grade(self.incomplete_gradesheet),
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zeroWeightsGrader.grade(self.empty_gradesheet),
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allZeroWeightsGrader.grade(self.empty_gradesheet)]:
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self.assertAlmostEqual( graded['percent'], 0.0 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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graded = emptyGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.0 )
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self.assertEqual( len(graded['section_breakdown']), 0 )
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self.assertEqual( len(graded['grade_breakdown']), 0 )
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def test_graderFromConf(self):
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#Confs always produce a graders.WeightedSubsectionsGrader, so we test this by repeating the test
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#in test_graders.WeightedSubsectionsGrader, but generate the graders with confs.
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weightedGrader = graders.grader_from_conf([
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{
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'type' : "Homework",
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'min_count' : 12,
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'drop_count' : 2,
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'short_label' : "HW",
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'weight' : 0.25,
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},
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{
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'type' : "Lab",
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'min_count' : 7,
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'drop_count' : 3,
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'category' : "Labs",
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'weight' : 0.25
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},
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{
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'type' : "Midterm",
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'name' : "Midterm Exam",
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'short_label' : "Midterm",
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'weight' : 0.5,
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},
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])
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emptyGrader = graders.grader_from_conf([])
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graded = weightedGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.5106547619047619 )
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self.assertEqual( len(graded['section_breakdown']), (12 + 1) + (7+1) + 1 )
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self.assertEqual( len(graded['grade_breakdown']), 3 )
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graded = emptyGrader.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.0 )
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self.assertEqual( len(graded['section_breakdown']), 0 )
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self.assertEqual( len(graded['grade_breakdown']), 0 )
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#Test that graders can also be used instead of lists of dictionaries
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homeworkGrader = graders.AssignmentFormatGrader("Homework", 12, 2)
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homeworkGrader2 = graders.grader_from_conf(homeworkGrader)
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graded = homeworkGrader2.grade(self.test_gradesheet)
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self.assertAlmostEqual( graded['percent'], 0.11 )
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self.assertEqual( len(graded['section_breakdown']), 12 + 1 )
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#TODO: How do we test failure cases? The parser only logs an error when it can't parse something. Maybe it should throw exceptions?
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