public void FollowElse()
{
p = LoadProgramFrom(@"
procedure main()
{
var a:int;
var b:int;
var old_b:int;
old_b := b;
assume a < 0;
b := if a > 0 then 1 else b;
assert {:symbooglix_bp ""follow_else""} b == old_b;
}
", "test.bpl");
Run(0, 1, (object sender, Executor.BreakPointEventArgs e) =>
{
Assert.AreEqual("follow_else", e.Name);
Executor executor = sender as Executor;
Assert.IsNotNull(executor);
var pair = executor.CurrentState.GetInScopeVariableAndExprByName("b");
var id = ExprUtil.AsIdentifer(pair.Value);
Assert.IsNotNull(id);
Assert.IsInstanceOf <SymbolicVariable>(id.Decl);
});
}
public void simpleHavoc()
{
p = LoadProgramFrom(@"
procedure main()
{
var a:int;
a := 1;
assert {:symbooglix_bp ""a_is_concrete""} true;
havoc a;
assert {:symbooglix_bp ""a_is_symbolic""} true;
}
", "test.bpl");
e = GetExecutor(p, new DFSStateScheduler(), GetSolver());
int counter = 0;
KeyValuePair <Variable, Expr>?aBefore = null;
e.BreakPointReached += delegate(object sender, Executor.BreakPointEventArgs eventArgs)
{
switch (eventArgs.Name)
{
case "a_is_concrete":
aBefore = e.CurrentState.GetInScopeVariableAndExprByName("a");
var asLit = ExprUtil.AsLiteral(aBefore.Value.Value);
Assert.IsNotNull(asLit);
Assert.IsTrue(asLit.isBigNum);
Assert.AreEqual(Microsoft.Basetypes.BigNum.FromInt(1), asLit.asBigNum);
break;
case "a_is_symbolic":
var aAfter = e.CurrentState.GetInScopeVariableAndExprByName("a");
Assert.IsTrue(aBefore != null && aBefore.HasValue);
Assert.AreNotSame(aBefore.Value, aAfter.Value);
var asId = ExprUtil.AsIdentifer(aAfter.Value);
Assert.IsNotNull(asId);
break;
default:
Assert.Fail("Unrecognised breakpoint");
break;
}
++counter;
};
e.Run(GetMain(p));
Assert.AreEqual(2, counter);
}