def test_replace_section(self):
elf_from = UnpreparedElfFile()
elf_to = UnpreparedElfFile()
seg = SectionedElfSegment(elf_from, sections=[UnpreparedElfSection(elf_from, "test")])
old_section = seg.get_sections()[0]
new_section = UnpreparedElfSection(elf_to, "new")
seg.replace_section(old_section, new_section)
self.assertEqual(seg.get_sections(), [new_section])
new_seg = seg.copy_into(elf_to)
self.assertRaises(InvalidArgument, seg.replace_section, None, new_section)
