public virtual void When_rule_is_declared_first_as_precondition_then_as_rule_it_is_only_evaluated_once()
{
var precondition = new MockValidationRule <string>(false);
var rule = Validate.That <string>(s => s.Length > 10);
var plan = new ValidationPlan <string>
{
rule.When(precondition).WithErrorCode("too short"),
precondition
};
var report = plan.Execute(null);
foreach (var failure in report.Failures)
{
Console.WriteLine(failure);
}
Assert.AreEqual(1, precondition.CallCount);
}
public virtual void Intermediate_preconditions_that_return_false_prevent_later_rules_from_being_evaluated()
{
var a = Validate.That <string>(s => false);
var b = new MockValidationRule <string>(false);
var c = new MockValidationRule <string>(false);
var plan = new ValidationPlan <string>
{
a,
b.When(a),
c.When(b)
};
var report = plan.Execute("");
Console.WriteLine(report);
Assert.AreEqual(0, b.CallCount);
Assert.AreEqual(0, c.CallCount);
}