private void TestInverse <aType, PathType>(string expr, string exceptedResult, bool reverse = false)
{
var inverse = new Inverter(CreateParser());
var interpreter = new Interpreter();
String argName = "a", resName = "Path";
if (reverse)
{
Swap(ref argName, ref resName);
//swap(ref expr, ref exceptedResult);
}
var aParam = new Parameter(argName, typeof(aType));
var resParam = Expression.Parameter(typeof(PathType), resName);
var resParam2 = new Parameter(resName, typeof(PathType));
var realInverseExpr = inverse.InverseExpression(interpreter.Parse(expr, aParam).Expression, resParam).Expression.ToString();
var expectedInverseExpr = interpreter.Parse(exceptedResult, resParam2).Expression.ToString();
Assert.AreEqual(expectedInverseExpr, realInverseExpr);
}
