'Get a course hierarchy to test with.'

def get_course_hierarchy(self):

    return [{'org': 'ContentLibraryTransformer', 'course': 'CL101F', 'run': 'test_run', '#type': 'course', '#ref': 'course', '#children': [{'#type': 'chapter', '#ref': 'chapter1', '#children': [{'#type': 'sequential', '#ref': 'lesson1', '#children': [{'#type': 'vertical', '#ref': 'vertical1', '#children': [{'metadata': {'category': 'library_content'}, '#type': 'library_content', '#ref': 'library_content1', '#children': [{'metadata': {'display_name': 'CL    Vertical    2'}, '#type': 'vertical', '#ref': 'vertical2', '#children': [{'metadata': {'display_name': 'HTML1'}, '#type': 'html', '#ref': 'html1'}]}, {'metadata': {'display_name': 'CL    Vertical    3'}, '#type': 'vertical', '#ref': 'vertical3', '#children': [{'metadata': {'display_name': 'HTML2'}, '#type': 'html', '#ref': 'html2'}]}]}]}]}]}]}]
