public void TestHarness()
{
//get a datareader stream from the xml file
XmlReaderSettings xrs = new XmlReaderSettings();
xrs.ConformanceLevel = ConformanceLevel.Document;
xrs.IgnoreComments = true;
xrs.IgnoreProcessingInstructions = true;
xrs.IgnoreWhitespace = true;
Stream s = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + @"\..\..\Compiler\Compiler.xml").BaseStream;
XmlReader reader = XmlReader.Create(s, xrs);
string comment;
string ruleset;
ArrayList model = null;
RuleEngine.ROM rom = null;
bool inTest = false;
while (!reader.EOF)
{
if (reader.IsStartElement("test"))
{
Debug.WriteLine("START TEST");
inTest = true;
model = new ArrayList();
reader.Read();
}
else if (inTest && reader.Name == "comment")
{
comment = reader.ReadElementContentAsString();
Debug.WriteLine(comment);
}
else if (inTest && reader.Name == "ruleset")
{
ruleset = reader.ReadElementContentAsString();
Debug.WriteLine(ruleset);
XmlDocument doc = new XmlDocument();
doc.Load(ruleset);
rom = RuleEngine.Compiler.Compiler.Compile(doc);
}
else if (inTest && reader.Name == "model")
{
string mid = reader.GetAttribute("modelId");
string m = reader.ReadElementContentAsString();
XmlDocument mod = new XmlDocument();
mod.Load(m);
model.Add(mod);
rom.AddModel(mid, mod);
}
else if (inTest && reader.Name == "evaluate")
{
//evaluate
Debug.WriteLine("Evaluate");
rom.Evaluate();
reader.Read();
}
else if (inTest && reader.Name == "assign")
{
Debug.WriteLine("Assign");
string mid = reader.GetAttribute("factId");
string m = reader.ReadElementContentAsString();
object value;
//determine value type
switch (rom[mid].ValueType.ToString()) //deterrmine the type of value returned by xpath
{
case "System.Double":
value = Double.Parse(m);
break;
case "System.Boolean":
value = Boolean.Parse(m);
break;
case "System.String":
value = m;
break;
default:
throw new Exception("Invalid type: " + m);
}
rom[mid].Value = value;
}
else if (inTest && reader.Name == "result")
{
Debug.WriteLine("Assert");
string mid = reader.GetAttribute("factId");
string m = reader.ReadElementContentAsString();
Assert.Equal(m, rom[mid].Value.ToString());
}
else if (inTest && reader.Name == "test")
{
rom = null;
model = null;
comment = null;
ruleset = null;
inTest = false;
reader.Read();
Debug.WriteLine("END TEST");
}
else
{
reader.Read();
}
}
}
