76357216da
* WIP New Policy class * WIP pubsub * Update Signal tests * small fixes from github comments * Fix event decode_instruction signature * Good merge * Good good merge * Eventful class commented * The million typos * Code revision * Fix tests for new mor strict Eventful
140 lines
4.2 KiB
Python
140 lines
4.2 KiB
Python
import unittest
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from manticore.utils.event import Eventful
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from manticore.platforms import linux
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from manticore.core.state import State
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from manticore.core.smtlib import BitVecVariable, ConstraintSet
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class FakeMemory(object):
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def __init__(self):
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self._constraints = None
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@property
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def constraints(self):
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return self._constraints
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@constraints.setter
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def constraints(self, constraints):
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self._constraints = constraints
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class FakeCpu(object):
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def __init__(self):
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self._memory = FakeMemory()
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@property
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def memory(self):
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return self._memory
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class FakePlatform(Eventful):
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def __init__(self):
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super(FakePlatform, self).__init__()
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self._constraints = None
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self.procs = [FakeCpu()]
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@property
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def current(self):
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return self.procs[0]
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@property
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def constraints(self):
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return self._constraints
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@constraints.setter
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def constraints(self, constraints):
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self._constraints = constraints
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for proc in self.procs:
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proc.memory.constraints = constraints
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class StateTest(unittest.TestCase):
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_multiprocess_can_split_ = True
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def setUp(self):
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l = linux.Linux('/bin/ls')
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self.state = State(ConstraintSet(), l)
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def test_solve_one(self):
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val = 42
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expr = BitVecVariable(32, 'tmp')
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self.state.constrain(expr == val)
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solved = self.state.solve_one(expr)
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self.assertEqual(solved, val)
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def test_solve_n(self):
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expr = BitVecVariable(32, 'tmp')
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self.state.constrain(expr > 4)
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self.state.constrain(expr < 7)
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solved = self.state.solve_n(expr, 2)
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self.assertEqual(solved, [5,6])
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def test_solve_n2(self):
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expr = BitVecVariable(32, 'tmp')
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self.state.constrain(expr > 4)
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self.state.constrain(expr < 100)
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solved = self.state.solve_n(expr, 5)
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self.assertEqual(len(solved), 5)
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def test_policy_one(self):
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expr = BitVecVariable(32, 'tmp')
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self.state.constrain(expr > 0)
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self.state.constrain(expr < 100)
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solved = self.state.concretize(expr, 'ONE')
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self.assertEqual(len(solved), 1)
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self.assertIn(solved[0], xrange(100))
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def test_state(self):
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constraints = ConstraintSet()
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initial_state = State(constraints, FakePlatform())
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arr = initial_state.symbolicate_buffer('+'*100, label='SYMBA')
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initial_state.constrain(arr[0] > 0x41)
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self.assertTrue(len(initial_state.constraints.declarations) == 1 )
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with initial_state as new_state:
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self.assertTrue(len(initial_state.constraints.declarations) == 1 )
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self.assertTrue(len(new_state.constraints.declarations) == 1 )
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arrb = new_state.symbolicate_buffer('+'*100, label='SYMBB')
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self.assertTrue(len(initial_state.constraints.declarations) == 1 )
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self.assertTrue(len(new_state.constraints.declarations) == 1 )
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new_state.constrain(arrb[0] > 0x42)
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self.assertTrue(len(new_state.constraints.declarations) == 2 )
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self.assertTrue(len(initial_state.constraints.declarations) == 1 )
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def test_new_symbolic_buffer(self):
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length = 64
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expr = self.state.new_symbolic_buffer(length)
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self.assertEqual(len(expr), length)
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def test_new_symbolic_value(self):
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length = 64
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expr = self.state.new_symbolic_value(length)
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self.assertEqual(expr.size, length)
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def test_new_bad_symbolic_value(self):
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length = 62
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with self.assertRaises(Exception):
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expr = self.state.new_symbolic_value(length)
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@unittest.skip('Record branches not a part of state anymore')
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def test_record_branches(self):
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branch = 0x80488bb
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target = 0x8048997
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fallthrough = 0x80488c1
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self.state.last_pc = (0, branch)
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self.state.record_branches([target, fallthrough])
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self.assertEqual(self.state.branches[(branch, target)], 1)
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self.assertEqual(self.state.branches[(branch, fallthrough)], 1)
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self.state.record_branches([target, fallthrough])
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self.assertEqual(self.state.branches[(branch, target)], 2)
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self.assertEqual(self.state.branches[(branch, fallthrough)], 2)
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