public void CanParseWithMultipleMatchedParentheses()
{
PropExpression e = PropLogicParser.Parse("(((Identifier)))");
Assert.IsInstanceOfType(e, typeof(PropIdentifier));
Assert.AreEqual("Identifier", ((PropIdentifier)e).Name);
}
public void CanParseIdentifierWithNumber()
{
PropExpression e = PropLogicParser.Parse("MyIden2");
Assert.IsInstanceOfType(e, typeof(PropIdentifier));
Assert.AreEqual("MyIden2", ((PropIdentifier)e).Name);
}
public void CanParenthesisIdentifier()
{
PropExpression e = PropLogicParser.Parse("(B)");
Assert.IsInstanceOfType(e, typeof(PropIdentifier));
Assert.AreEqual("B", ((PropIdentifier)e).Name);
}
public void CanCombineNotWithParens()
{
PropExpression e = PropLogicParser.Parse("!(Identifier)");
Assert.IsInstanceOfType(e, typeof(PropNegation));
var neg = (PropNegation)e;
Assert.IsInstanceOfType(neg.Inner, typeof(PropIdentifier));
Assert.AreEqual("Identifier", ((PropIdentifier)neg.Inner).Name);
}
public void CanNegate()
{
PropExpression e = PropLogicParser.Parse("!Term");
Assert.IsInstanceOfType(e, typeof(PropNegation));
var en = (PropNegation)e;
Assert.IsInstanceOfType(en.Inner, typeof(PropIdentifier));
Assert.AreEqual("Term", ((PropIdentifier)en.Inner).Name);
}
public void CanDoDisjunction()
{
PropExpression e = PropLogicParser.Parse("A || B");
Assert.IsInstanceOfType(e, typeof(PropDisjunction));
var ec = (PropDisjunction)e;
Assert.IsInstanceOfType(ec.Left, typeof(PropIdentifier));
Assert.IsInstanceOfType(ec.Right, typeof(PropIdentifier));
Assert.AreEqual("A", ((PropIdentifier)ec.Left).Name);
Assert.AreEqual("B", ((PropIdentifier)ec.Right).Name);
}
public void CanDoComplexExpression()
{
PropExpression e = PropLogicParser.Parse("(A || !B) && C");
Assert.IsInstanceOfType(e, typeof(PropConjunction));
var ec = (PropConjunction)e;
Assert.IsInstanceOfType(ec.Left, typeof(PropDisjunction));
Assert.IsInstanceOfType(ec.Right, typeof(PropIdentifier));
Assert.AreEqual("C", ((PropIdentifier)ec.Right).Name);
var ed = (PropDisjunction)ec.Left;
Assert.IsInstanceOfType(ed.Left, typeof(PropIdentifier));
Assert.IsInstanceOfType(ed.Right, typeof(PropNegation));
Assert.AreEqual("A", ((PropIdentifier)ed.Left).Name);
var en = (PropNegation)ed.Right;
Assert.IsInstanceOfType(en.Inner, typeof(PropIdentifier));
Assert.AreEqual("B", ((PropIdentifier)en.Inner).Name);
}
public void WillThrowForInvalidExpression()
{
PropLogicParser.Parse("++%$");
}
public bool Evaluate(string check, IEvaluationContext context)
{
return(this.Interpret(PropLogicParser.Parse(check), context));
}
