'Verify successive calls to update a satisfied grade requirement are recorded.'

def test_grade_changed(self):

    self.assert_requirement_status(0.6, self.VALID_DUE_DATE, 'satisfied')
    self.assert_requirement_status(0.75, self.VALID_DUE_DATE, 'satisfied')
    self.assert_requirement_status(0.7, self.VALID_DUE_DATE, 'satisfied')
