public void ItShouldParseExpression()
{
const string text = "( {0} + {1} ) * ( {2} * 1 )";
var rule = new RuleTree <int, int>(text);
var expression = rule.GetExpression();
Assert.AreEqual("0", expression.Parameters[0].ToString());
Assert.AreEqual("1", expression.Parameters[1].ToString());
Assert.AreEqual(ExpressionType.Multiply, expression.Body.NodeType);
}
public void ItShouldGetExpresionWhenvalidate()
{
var i = new Mock <IRule <int, int> >();
var j = new Mock <IRule <int, int> >();
i.Setup(x => x.GetResult()).Returns(SetDictionary("1", 1));
j.Setup(x => x.GetResult()).Returns(SetDictionary("2", 2));
var operation = new Mock <IOperation>();
operation.Setup(x => x.GetOperator()).Returns(ExpressionType.Add);
var rule = new RuleTree <int, int>
{
I = i.Object,
J = j.Object,
Operation = operation.Object
};
var expression = rule.GetExpression();
Assert.IsNotNull(expression);
Assert.AreEqual("0", expression.Parameters[0].ToString());
Assert.AreEqual("1", expression.Parameters[1].ToString());
Assert.AreEqual(ExpressionType.Add, expression.Body.NodeType);
}
public void ItShouldNotGetExpressionWhenNotValidate()
{
var rule = new RuleTree <int, int>();
Assert.Throws(typeof(RuleException), () => rule.GetExpression());
}
