bindings/python/llvm/tests/test_disassembler.py

   1 from .base import TestBase
   2
   3 from ..disassembler import Disassembler, Option_UseMarkup
   4
   5 class TestDisassembler(TestBase):
   6     def test_instantiate(self):
   7          Disassembler('i686-apple-darwin9')
   8
   9     def test_basic(self):
  10         sequence = '\x67\xe3\x81' # jcxz -127
  11         triple = 'i686-apple-darwin9'
  12
  13         disassembler = Disassembler(triple)
  14
  15         count, s = disassembler.get_instruction(sequence)
  16         self.assertEqual(count, 3)
  17         self.assertEqual(s, '\tjcxz\t-127')
  18
  19     def test_nonexistent_triple(self):
  20         with self.assertRaisesRegexp(Exception, "Could not obtain disassembler for triple"):
  21             Disassembler("nonexistent-triple-raises")
  22
  23     def test_get_instructions(self):
  24         sequence = '\x67\xe3\x81\x01\xc7' # jcxz -127; addl %eax, %edi
  25
  26         disassembler = Disassembler('i686-apple-darwin9')
  27
  28         instructions = list(disassembler.get_instructions(sequence))
  29         self.assertEqual(len(instructions), 2)
  30
  31         self.assertEqual(instructions[0], (0, 3, '\tjcxz\t-127'))
  32         self.assertEqual(instructions[1], (3, 2, '\taddl\t%eax, %edi'))
  33
  34     def test_set_options(self):
  35         sequence = '\x10\x40\x2d\xe9'
  36         triple = 'arm-linux-android'
  37
  38         disassembler = Disassembler(triple)
  39         disassembler.set_options(Option_UseMarkup)
  40         count, s = disassembler.get_instruction(sequence)
  41         print s
  42         self.assertEqual(count, 4)
  43         self.assertEqual(s, '\tpush\t{<reg:r4>, <reg:lr>}')