public void WhenApplicationWithErrorsThenExceptionsListReportsFaultyRules()
{
var testContext = new TestContext();
var pipeline = new FaultTolerantPromotionPipeline();
var ruleA = new PromotionRuleA();
var ruleB = new FaultyPromotionRule();
var ruleC = new PromotionRuleA();
var ruleD = new FaultyPromotionRule();
pipeline.AddRule(ruleA);
pipeline.AddRule(ruleB);
pipeline.AddRule(ruleC);
pipeline.AddRule(ruleD);
ICart cart = pipeline.Apply(testContext.CartFactory.Create());
Assert.NotNull(cart);
Assert.NotEmpty(pipeline.LastApplyExceptions);
Assert.Collection(pipeline.LastApplyExceptions,
errorEntry =>
{
Assert.True((object)errorEntry.Item1 == (object)ruleB);
Assert.IsType <TestException>(errorEntry.Item2);
},
errorEntry =>
{
Assert.True((object)errorEntry.Item1 == (object)ruleD);
Assert.IsType <TestException>(errorEntry.Item2);
});
}
public void WhenAllRulesFailThenReturnedCartIsTheSameAsOriginal()
{
var testContext = new TestContext();
var pipeline = new FaultTolerantPromotionPipeline();
var ruleA = new FaultyPromotionRule();
var ruleB = new FaultyPromotionRule();
pipeline.AddRule(ruleA);
pipeline.AddRule(ruleB);
ICart originalCart = testContext.CartFactory.Create();
ICart newCart = pipeline.Apply(originalCart);
Assert.NotNull(newCart);
Assert.True((object)newCart == (object)originalCart);
}
public void WhenPreviousRuleFaultsThenNextRulesActionIsPreserved()
{
var testContext = new TestContext();
var pipeline = new FaultTolerantPromotionPipeline();
var sku = testContext.CreateNewSku("S", 0);
var ruleA = new FaultyPromotionRule();
var ruleB = new SideEffectsPromotionRule(sku);
pipeline.AddRule(ruleA);
pipeline.AddRule(ruleB);
ICart cart = pipeline.Apply(testContext.CartFactory.Create());
Assert.NotNull(cart);
Assert.NotEmpty(pipeline.LastApplyExceptions);
Assert.Collection(cart, entry =>
{
Assert.True((object)entry.Sku == (object)sku);
});
}
