'Test that each student sees only one block as a child of the LibraryContent block.'

def test_children_seen_by_a_user(self):

    self.lc_block.refresh_children()
    self.lc_block = self.store.get_item(self.lc_block.location)
    self._bind_course_module(self.lc_block)
    self.assertTrue(self.lc_block.has_dynamic_children())
    self.assertEqual(len(self.lc_block.children), len(self.lib_blocks))
    self.assertEqual(len(self.lc_block.get_child_descriptors()), 1)
    self.assertEqual(len(self.lc_block.get_content_titles()), 1)
