public void BooleanMethods2()
{
Order order = ExampleUsage.GetOrder();
//The Order Object Contains a method named 'HasItem(string itemCode)' that returns true/false
Rule rule = Rule.Method("HasItem", "Test");
Mre engine = new Mre();
var boolMethod = engine.CompileRule <Order>(rule);
bool passes = boolMethod(order);
Assert.IsTrue(passes);
var item = order.Items.First(x => x.ItemCode == "Test");
item.ItemCode = "Changed";
passes = boolMethod(order);
Assert.IsFalse(passes);
}
public void JsonSerialization()
{
var serializer = new DataContractJsonSerializer(typeof(Rule));
string text;
using (var stream1 = new MemoryStream())
{
Rule rule = Rule.Create("Customer.LastName", MreOperator.Equal, "Doe")
& (Rule.Create("Customer.FirstName", MreOperator.Equal, "John") |
Rule.Create("Customer.FirstName", MreOperator.Equal, "Jane"))
& Rule.Create("Items[1].Cost", MreOperator.Equal, 5.25m);
serializer.WriteObject(stream1, rule);
stream1.Position = 0;
var sr = new StreamReader(stream1);
text = sr.ReadToEnd();
}
Rule newRule; // add breakpoint here, to view JSON in text.
using (var stream2 = new MemoryStream(Encoding.UTF8.GetBytes(text)))
{
newRule = (Rule)serializer.ReadObject(stream2);
}
var order = ExampleUsage.GetOrder();
Mre engine = new Mre();
var fakeName = engine.CompileRule <Order>(newRule);
bool passes = fakeName(order);
Assert.IsTrue(passes);
order.Customer.FirstName = "Philip";
passes = fakeName(order);
Assert.IsFalse(passes);
}
public void Prebuild2()
{
MRE engine = new MRE();
Rule rule1 = Rule.MethodOnChild("Customer.FirstName", "EndsWith", "ohn");
Rule rule2 = Rule.Create("Customer.Country.CountryCode", mreOperator.Equal, "AUS");
var endsWithOhn = engine.CompileRule <Order>(rule1);
var inAus = engine.CompileRule <Order>(rule2);
Order order = ExampleUsage.GetOrder();
int reps = 1000;
for (int i = 0; i < reps; ++i)
{
bool passes = endsWithOhn(order);
Assert.IsTrue(passes);
passes = inAus(order);
Assert.IsTrue(passes);
}
}
public void XmlSerialization()
{
var serializer = new DataContractSerializer(typeof(Rule));
string text;
using (var writer = new StringWriter())
{
Rule rule = Rule.Create("Customer.LastName", MreOperator.Equal, "Doe")
& (Rule.Create("Customer.FirstName", MreOperator.Equal, "John")
| Rule.Create("Customer.FirstName", MreOperator.Equal, "Jane"));
using (var xw = XmlWriter.Create(writer))
serializer.WriteObject(xw, rule);
text = writer.ToString();
}
Rule newRule; // add breakpoint here, to view XML in text.
using (var reader = new StringReader(text))
using (var xr = XmlReader.Create(reader))
{
newRule = (Rule)serializer.ReadObject(xr);
}
var order = ExampleUsage.GetOrder();
Mre engine = new Mre();
var fakeName = engine.CompileRule <Order>(newRule);
bool passes = fakeName(order);
Assert.IsTrue(passes);
order.Customer.FirstName = "Philip";
passes = fakeName(order);
Assert.IsFalse(passes);
}