import unittest
import os

from manticore import Manticore


class ManticoreTest(unittest.TestCase):
    _multiprocess_can_split_ = True

    def setUp(self):
        dirname = os.path.dirname(__file__)
        self.m = Manticore(os.path.join(dirname, 'binaries', 'arguments_linux_amd64'))

    def test_profiling_data(self):
        self.m.run(should_profile=True)
        profile_path = os.path.join(self.m.workspace, 'profiling.bin')
        self.assertTrue(os.path.exists(profile_path))
        self.assertTrue(os.path.getsize(profile_path) > 0)

    def test_add_hook(self):
        def tmp(state):
            pass
        entry = 0x00400e40
        self.m.add_hook(entry, tmp)
        self.assertTrue(tmp in self.m._hooks[entry])

    def test_hook_dec(self):
        entry = 0x00400e40
        @self.m.hook(entry)
        def tmp(state):
            pass
        self.assertTrue(tmp in self.m._hooks[entry])

    def test_hook(self):
        self.m.context['x'] = 0

        @self.m.hook(None)
        def tmp(state):
            self.m.context['x'] = 1
            self.m.terminate()
        self.m.run()

        self.assertEqual(self.m.context['x'], 1)

    def test_init_hook(self):
        self.m.context['x'] = 0

        @self.m.init
        def tmp(state):
            self.m.context['x'] = 1
            self.m.terminate()

        self.m.run()

        self.assertEqual(self.m.context['x'], 1)

    def test_hook_dec_err(self):
        with self.assertRaises(TypeError):
            @self.m.hook('0x00400e40')
            def tmp(state):
                pass

    def test_integration_basic_stdin(self):
        import struct
        dirname = os.path.dirname(__file__)
        self.m = Manticore(os.path.join(dirname, 'binaries', 'basic_linux_amd64'))
        self.m.run()
        workspace = self.m._output.store.uri
        with open(os.path.join(workspace, 'test_00000000.stdin'), 'rb') as f:
            a = struct.unpack('<I', f.read())[0]
        with open(os.path.join(workspace, 'test_00000001.stdin'), 'rb') as f:
            b = struct.unpack('<I', f.read())[0]
        if a > 0x41:
            self.assertTrue(a > 0x41)
            self.assertTrue(b <= 0x41)
        else:
            self.assertTrue(a <= 0x41)
            self.assertTrue(b > 0x41)