public void AstBuilder_ComplexExpression_Build()
{
var tree = new Ast("+", true);
tree.Operands.Add(new Ast("4"));
tree.Operands.Add(new Ast("6"));
var buffer = new Ast("/", true);
buffer.Operands.Add(new Ast("81"));
buffer.Operands.Add(new Ast("-3"));
var anotherBuffer = new Ast("*", true);
anotherBuffer.Operands.Add(new Ast("3"));
anotherBuffer.Operands.Add(new Ast("3"));
buffer.Operands.Add(anotherBuffer);
tree.Operands.Add(buffer);
buffer = new Ast("-", true);
buffer.Operands.Add(new Ast("10"));
buffer.Operands.Add(new Ast("12"));
tree.Operands.Add(buffer);
var input = "(+ 4 6 (/ 81 -3 (* 3 3 ))( - 10 12 ))";
var actualTree = new AstBuilder().Build(new Tokenizer().GetTokens(input));
Assert.IsTrue(actualTree.Equals(tree));
}
