public void WhenAddingNullRuleThenExceptionIsThrown()
{
var pipeline = new TestPromotionPipeline();
Assert.Throws <ArgumentNullException>(() =>
{
pipeline.AddRule(null);
});
}
public void RulesAreExecutedInOrder()
{
var testContext = new TestContext();
var pipeline = new TestPromotionPipeline();
var ruleA = new PromotionRuleA();
var ruleB = new PromotionRuleB();
pipeline.AddRule(ruleA);
pipeline.AddRule(ruleB);
pipeline.Apply(testContext.CartFactory.Create());
Assert.True(pipeline.RunHistory.Any());
Assert.Equal(2, pipeline.RunHistory.Count);
Assert.True((object)pipeline.RunHistory[0] == (object)ruleA);
Assert.True((object)pipeline.RunHistory[1] == (object)ruleB);
}