public void RuleSetIsValidIfRulesAreValid()
{
var rule = new Rule { Name = "First Rule", TopCondition = new LogicCondition { Operator = "all" } };
var action1 = new AssignAction { LeftHandSide = "Person.Salutation", Value = "Mr." };
var action2 = new AssignAction { LeftHandSide = "Person.Greeting", Value = "Hello" };
rule.AddAction(action1);
rule.AddAction(action2);
var rs = new RuleSet { Name = "Whatever" };
rs.AddInput("Person", typeof(TestPerson));
rs.AddRule(rule);
Assert.IsTrue(rs.IsValid());
}
public void InvokingWithIncorrectWorkingMemoryThrowsAnException()
{
var rule = new Rule { Name = "First Rule", TopCondition = new LogicCondition { Operator = "all" } };
var action1 = new AssignAction { LeftHandSide = "Person.Salutation", Value = "Mr." };
rule.AddAction(action1);
var rs = new RuleSet { Name = "Whatever" };
rs.AddInput("Person", typeof(TestPerson));
rs.AddRule(rule);
IRuleEngine engine = WFRuleEngine.Compile(rs);
Assert.Throws(typeof(InvalidWorkflowException), delegate
{
engine.Invoke(_workingMemory);
});
}
private Rule CreateTestRule(ExpressionCondition condition, AssignAction action)
{
var rule = new Rule { Name = "Rule 1", TopCondition = new LogicCondition { Operator = "all" } };
rule.TopCondition.AddCondition(condition);
rule.AddAction(action);
return rule;
}
private static Sequence CompileActions(Rule rule, Dictionary<string, Type> inputs)
{
var sequence = new Sequence();
foreach (var action in rule.Actions)
{
Activity activity;
switch (action.GetType().Name)
{
case "AssignAction":
activity = new Assign<string>
{
To = new OutArgument<string>(new VisualBasicReference<string>(action.LeftHandSide)),
Value = new InArgument<string>(action.Value)
};
break;
default:
throw new Exception("The action type '" + action.GetType().Name + "' has not been implemented");
}
sequence.Activities.Add(activity);
}
return sequence;
}
public void AddRule(Rule rule)
{
Rules.Add(rule);
}
public void CanAddRulesToRuleSet()
{
var rs = new RuleSet { Name = "Whatever" };
var rule = new Rule { TopCondition = new LogicCondition { Operator = "all" } };
Assert.DoesNotThrow(delegate { rs.AddRule(rule); });
}