def test_symbolic_concrete(self):
s1 = 'hi\0'
s2 = self.state.symbolicate_buffer('+++\0')
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertTrue(solver.can_be_true(self.state.constraints, ret != 0))
self.assertTrue(solver.can_be_true(self.state.constraints, ret == 0))
self.state.constrain(s2[0] == ord('a'))
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret <= 0))
self._clear_constraints()
self.state.constrain(s2[0] == ord('z'))
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret >= 0))
self._clear_constraints()
self.state.constrain(s2[0] == ord('h'))
self.state.constrain(s2[1] == ord('i'))
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret > 0))
self.state.constrain(s2[2] == ord('\0'))
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret != 0))
def test_symbolic_concrete(self):
s1 = 'hi\0'
s2 = self.state.symbolicate_buffer('+++\0')
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertTrue(solver.can_be_true(self.state.constraints, ret != 0))
self.assertTrue(solver.can_be_true(self.state.constraints, ret == 0))
self.state.constrain(s2[0] == ord('a'))
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret > 0))
self._clear_constraints()
self.state.constrain(s2[0] == ord('z'))
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret < 0))
self._clear_constraints()
self.state.constrain(s2[0] == ord('h'))
self.state.constrain(s2[1] == ord('i'))
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret <= 0))
self.state.constrain(s2[2] == ord('\0'))
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret == 0))
def test_symbolic_actually_concrete(self):
s1 = 'ab\0'
s2 = self.state.symbolicate_buffer('d+\0')
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret < 0))
def test_symbolic_actually_concrete(self):
s1 = 'ab\0'
s2 = self.state.symbolicate_buffer('d+\0')
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret >= 0))
def test_symbolic_actually_concrete(self):
s1 = 'ab\0'
s2 = self.state.symbolicate_buffer('d+\0')
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret >= 0))
def test_effective_null(self):
s1 = self.state.symbolicate_buffer('a+')
s2 = self.state.symbolicate_buffer('++')
strs = self._push2(s1, s2)
self.state.constrain(s1[1] == 0)
self.state.constrain(s2[0] == ord('z'))
ret = strcmp(self.state, *strs)
self.assertTrue(self.state.must_be_true(ret < 0))
def test_effective_null(self):
s1 = self.state.symbolicate_buffer('a+')
s2 = self.state.symbolicate_buffer('++')
strs = self._push2(s1, s2)
self.state.constrain(s1[1] == 0)
self.state.constrain(s2[0] == ord('z'))
ret = strcmp(self.state, *strs)
self.assertFalse(solver.can_be_true(self.state.constraints, ret >= 0))
def _concrete_gt(s1, s2):
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertTrue(ret > 0)
def test_concrete_eq(self):
s = 'abc\0'
strs = self._push2(s, s)
ret = strcmp(self.state, *strs)
self.assertEqual(ret, 0)
def _concrete_gt(s1, s2):
strs = self._push2(s1, s2)
ret = strcmp(self.state, *strs)
self.assertTrue(ret > 0)
def test_concrete_eq(self):
s = 'abc\0'
strs = self._push2(s, s)
ret = strcmp(self.state, *strs)
self.assertEqual(ret, 0)
