public void TestComplexExpression()
{
const string VAR_X = "x";
const string VAR_Y = "y";
const string VAR_Z = "z";
var ctx = new Context();
ctx.SetValue(VAR_X, true);
ctx.SetValue(VAR_Y, true);
ctx.SetValue(VAR_Z, false);
var constExp = new ConstExpression(TRUE_TOKEN);
var unaryExp = new UnaryExpression(constExp);
Assert.AreEqual(false, unaryExp.Interpret(ctx));
var binaryExp =
new BinaryExpression(
new BinaryExpression(VAR_X,
BinaryOp.And,
unaryExp),
BinaryOp.Or,
new BinaryExpression(new UnaryExpression(VAR_Y),
BinaryOp.And,
VAR_Z));
Assert.AreEqual(false, binaryExp.Interpret(ctx));
}
public void TestConst()
{
var ctx = new Context();
var constExp = new ConstExpression(TRUE_TOKEN);
Assert.AreEqual(true, constExp.Interpret(ctx));
constExp = new ConstExpression(FALSE_TOKEN);
Assert.AreEqual(false, constExp.Interpret(ctx));
}