'Sets up a course structure with 2 subsections inside a single section.
The first subsection has 2 units, and the second subsection has one unit.'

def populate_course_fixture(self, course_fixture):

    self.courseware = CoursewarePage(self.browser, self.course_id)
    self.course_home_page = CourseHomePage(self.browser, self.course_id)
    course_fixture.add_children(XBlockFixtureDesc('chapter', SECTION_NAME).add_children(XBlockFixtureDesc('sequential', SUBSECTION_NAME).add_children(XBlockFixtureDesc('vertical', UNIT_NAME), XBlockFixtureDesc('vertical', 'Test    Unit    2')), XBlockFixtureDesc('sequential', 'Test    Subsection    2').add_children(XBlockFixtureDesc('vertical', 'Test    Unit    3'))))
