public static IRule Create(IOutputBuilder outputBuilder)
{
var by15RuleBuilder = new DivisibleBy15RuleBuilder().RedirectResultTo(outputBuilder);
var by3RuleBuilder = new DivisibleBy3RuleBuilder().RedirectResultTo(outputBuilder);
var by5RuleBuilder = new DivisibleBy5RuleBuilder().RedirectResultTo(outputBuilder);
var integerRuleBuilder = new IntegerRuleBuilder().RedirectResultTo(outputBuilder);
var endOfChain = new NullRule();
integerRuleBuilder.ContinueWith(endOfChain);
by5RuleBuilder.BreakIfApplied().ContinueWith(integerRuleBuilder.Build());
by3RuleBuilder.BreakIfApplied().ContinueWith(by5RuleBuilder.Build());
by15RuleBuilder.BreakIfApplied().ContinueWith(by3RuleBuilder.Build());
return(by15RuleBuilder.Build());
}
public void null_rule_returns_unit_price()
{
const int UNIT_PRICE = 50;
var rule = new NullRule("A", UNIT_PRICE);
var basket = new Basket();
CollectionAssert.IsEmpty(rule.ApplyRule(basket));
basket.Add("A");
Assert.AreEqual(UNIT_PRICE, rule.ApplyRule(basket).Single());
CollectionAssert.IsEmpty(rule.ApplyRule(basket));
}
public IRule GetRule(RuleInfo ruleInfo)
{
IRule rule = new NullRule(ruleInfo);
if (RelationOperatorRule(ruleInfo))
{
rule = new RelationalRule(ruleInfo);
}
else if (ruleInfo.ValueType == ValueTypes.DateTime && ruleInfo.Operator == Operator.IsFuture)
{
rule = new DateTimeRule(ruleInfo);
}
else if (IsBandRule(ruleInfo) && ruleInfo.ValueType != ValueTypes.String)
{
rule = new BandRule(ruleInfo);
}
return(rule);
}
public static ICARule GetRuleByName(string name)
{
if (_rulesCache.TryGetValue(name, out ICARule rule))
{
return(rule);
}
else
{
if (LifeLikeRule.LifeLikeRuleString(name))
{
rule = new LifeLikeRule(name, name);
}
else if (name.Trim().ToLower().Equals("life"))
{
rule = new LifeRule();
}
else if (name.Trim().ToLower().Equals("highlife"))
{
rule = new HighLifeRule();
}
else if (name.Trim().ToLower().Equals("seeds"))
{
rule = new SeedsRule();
}
else if (name.Trim().ToLower().Equals("null"))
{
rule = new NullRule();
}
else
{
rule = GetRuleFromFile(name, $"RuleFiles/{name}.table");
}
_rulesCache[name] = rule;
return(rule);
}
}