src/third_party/pyelftools/test/test_dwarf_structs.py

   1 try:
   2     import unittest2 as unittest
   3 except ImportError:
   4     import unittest
   5 import sys
   6
   7 sys.path.extend(['.', '..'])
   8 from elftools.dwarf.structs import DWARFStructs
   9
  10
  11 class TestDWARFStructs(unittest.TestCase):
  12     def test_lineprog_header(self):
  13         ds = DWARFStructs(little_endian=True, dwarf_format=32, address_size=4)
  14
  15         c = ds.Dwarf_lineprog_header.parse(
  16             b'\x04\x10\x00\x00' +    # initial lenght
  17             b'\x05\x02' +            # version
  18             b'\x20\x00\x00\x00' +    # header length
  19             b'\x05\x10\x40\x50' +    # until and including line_range
  20             b'\x06' +                # opcode_base
  21             b'\x00\x01\x04\x08\x0C' + # standard_opcode_lengths
  22             # 2 dir names followed by a NULL
  23             b'\x61\x62\x00\x70\x00\x00' +
  24             # a file entry
  25             b'\x61\x72\x00\x0C\x0D\x0F' +
  26             # and another entry
  27             b'\x45\x50\x51\x00\x86\x12\x07\x08' +
  28             # followed by NULL
  29             b'\x00')
  30
  31         self.assertEqual(c.version, 0x205)
  32         self.assertEqual(c.opcode_base, 6)
  33         self.assertEqual(c.standard_opcode_lengths, [0, 1, 4, 8, 12])
  34         self.assertEqual(c.include_directory, [b'ab', b'p'])
  35         self.assertEqual(len(c.file_entry), 2)
  36         self.assertEqual(c.file_entry[0].name, b'ar')
  37         self.assertEqual(c.file_entry[1].name, b'EPQ')
  38         self.assertEqual(c.file_entry[1].dir_index, 0x12 * 128 + 6)
  39
  40
  41 if __name__ == '__main__':
  42     unittest.main()
  43