public void AddRuleAssertFactRunAssertAnotherFactRunAndKeepFact()
{
this.AddRule("SimpleRule.txt");
this.world.AssertFact(new IsFact("Temperature", 39));
this.world.Run();
Assert.IsTrue(this.world.IsAFact(new IsFact("HasFever", true)));
this.world.AssertFact(new IsFact("Temperature", 40));
this.world.Run();
Assert.IsTrue(this.world.IsAFact(new IsFact("HasFever", true)));
}