def METHOD_NAME(self):
    """
    Test that all courses in the modulestore are loaded into course overviews.
    """
    # ensure that the newly created courses aren't in course overviews
    self._assert_courses_not_in_overview(self.course_key_1, self.course_key_2)
    self.command.handle(all_courses=True)
    # CourseOverview will be populated with all courses in the modulestore
    self._assert_courses_in_overview(self.course_key_1, self.course_key_2)