def test_getchar(self):
m = ManticoreWASM(if_check_file, env={"getchar": getchar2})
m.main()
results = []
for idx, val_list in enumerate(m.collect_returns()):
results.append(val_list[0][0])
self.assertEqual(sorted(results), [-1, 0])
def test_br_if(self):
m = ManticoreWASM(test_br_if_file)
def arg_gen(state):
arg = state.new_symbolic_value(32, "arg")
state.context["arg"] = arg
return [arg]
m.main(arg_gen)
m.run()
assert any((self.can_terminate_with(0, state) for state in m.terminated_states))
:param state: The current state
:param _addr: Memory index of the string that gets printed by getchar
:return: A symbolic value of the interval [1, 7]
"""
res = state.new_symbolic_value(32, "getchar_res")
state.constrain(res > 0)
state.constrain(res < 8)
return [res]
# Pass our symbolic implementation of the `getchar` function into the WASM environment
# as an import.
m = ManticoreWASM("collatz.wasm", env={"getchar": getchar})
# Invoke the main function, which will call getchar
m.main()
# Manually collect return values
for idx, val_list in enumerate(m.collect_returns()):
print("State", idx, "::", val_list[0])
# Finalize the run (dump testcases)
m.finalize()
print(
"""
============ Example 3 ============
"""
)
