Architect Tips

Architect Tip: What is Technical Debt? Welcome to Architect Tips presented by Clear Measure, a software architecture company. Empowering .NET development teams to be self-sufficient, able to move fast, deliver quality, and run their software systems with confidence. Make sure to subscribe on YouTube or your video podcast feed. If you have a question for the show, send them to [email protected] and the next tip could be yours! What is Technical Debt? Now we all want to move fast and deliver consistent quality and run our software in production with confidence knowing that...

Architect Tip: How Often to Deploy to Production

Architect Tips

How often should you be deploying your software to production? Welcome to architect tips. I am Jeffrey Palermo. Today we are going to talk about how often to deploy to production. If you have a question for architect tips, send it to [email protected] From those submitted, we’ll pick a question and, if I can put it into a short five-minute bite-sized chunk, I’ll do it. Otherwise, I will just send you an email and I will answer it for you. How often should you deploy to production?

Architect Tip: Testing Polymorphic EFCore Mapping

Architect Tips

Welcome to Architect Tips presented by Clear Measure, a software architecture company. Empowering .NET development teams to be self-sufficient, able to move fast, deliver quality, and run their software systems with confidence. Make sure to subscribe on YouTube or your video podcast feed. If you have a question for the show, send them to [email protected] and the next tip could be yours. Howdy! Welcome to Architect Tips. Today I want to talk about strategies for writing and maintaining automated tests for object-relational mapping whenever you have a hierarchy that you...

Private Build Structure

Architect Tips

Welcome to Architect Tips, presented by Clear Measure, a software architecture company. Empowering .NET development teams to be self-sufficient, able to move fast, deliver quality, and run their software systems with confidence. Make sure to subscribe on YouTube or your video podcast feed. If you have a question for the show, send them to [email protected] and the next tip could be yours. Hello and welcome to Architect Tips. Today, I want to talk about the essentials of a private build and a lot of people are trying to do continuous integration but they only have a...

Architect Tip: Developer vs Architect

Architect Tips

Welcome to Architect Tips presented by Clear Measure, a software architecture company. Empowering .NET development teams to be self-sufficient, able to move fast, deliver quality and run their software systems with confidence. Make sure to subscribe on YouTube or your video podcast feed. If you have a question for the show, send them to [email protected] and the next tip could be yours.What's the difference between an architect and a developer? Let's talk about that. Now, as a developer, when you're joining a team, you're shown the ropes. You have a new workstation and you're...

Architect Tip: Application Architecture Diagrams

Architect Tips

Welcome to architect tips. I am Jeffrey Palermo. And I am going to show you today how to use architecture diagrams in a really, really easy way. Now as we go through, there is a lot of resources, a lot of, interesting topics on the Azure DevOps podcast. You will want to make sure to check out that as a resource to you and on this show architect tips, I will answer your architect questions. All you have to do is tweet me @jeffreypalermo and I'll pick a question and, if I can put it into a short five-minute bite-sized chunk, I'm just going to make one of these out of it. Otherwise, I will just...

Architect Tip: Versionable Architect Diagrams

Architect Tips

In this architect tip, we’re going to be talking about Versionable Architecture Diagrams! As always here at Clear Measure, we are a software architecture company, and our goal for you is to be able to move fast, deliver quality, and run your systems with confidence! Having architecture diagrams that work for you as part of that. Now we want to have beautiful diagrams just like this one, but doing them in Visio, it just is hard. So, let's get into it. The first thing that we need to do in order to get started with these types of diagrams in this method in a versionable fashion is to install a...

Architect Tip: Blazor Circuit Tracking

Architect Tips

Welcome to another architect tip. I am Jeffrey Palermo, your host, and we are going to be talking a little bit about a tip specific to the new Blazor framework for .NET Core. We talked to Steve Sanderson, the original inventor of the first version of Blazor on the Azure DevOps podcast recently, so you might be interested in checking that out. What we are going to do here is talk about how to track your circuits and how to know how many people are using your application and your distribution. This one is going to be specific to a tip specific to the server side because your client running in...

Architect Tip: Blazor

Architect Tips

Welcome to Architect Tips with a tip so that you can get your team to move faster, deliver quality, and run your system with confidence! We will talk about the architecture of Blazor and some of the key differences if you are running a Blazor application. Before we do that, you might wanna check out Azure DevOps Podcast; for .NET developers who are shipping software with Microsoft platform technologies; go to . Blazor is a different architecture; it is a new architecture. Blazor runs on top of .NET Core, and the server-side has been out for several months now. WebAssembly just came out in...

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Howdy! Welcome to Architect Tips. Today I want to talk about strategies for writing and maintaining automated tests for object-relational mapping whenever you have a hierarchy that you have mapped. And so on the screen, I have a sample just from a car auction, a car auction application, where we have an auction entry, but then we have three different types of entries. In an auction, things are typically called a lot. And if you're selling that, that sweet Chevrolet Corvette will be lot number such and such. And so you have competitive Lot, C of Consortium Lots, where multiple people can go in by organizations and you have an add-on only lot for donations, but they all derive from auction injury. So, in the code, you would see that a derived type lot would inherit from auction entering, okay? Well, what about your mapping? This is Entity framework and entity framework core or just entity framework and .NET 5 as well. And so, we're going to go to all auction injury map. We use this convention for every type of map, an aggregate root in domain design speak. We have an actual class so that the mappings don't get out of control and you want to be able to have a class per map. And if I go over to my data context, you can see that we have a method here that just kind of lists all of them and we can control the schema and in some cases, you want to put them in a different schema. That's just an aside but an auction entry, we've inherited, we've established it as table per hierarchy. So we've added a discriminator, okay, that's great. Just follow the documentation and in, in our code, we can find Consortium lot map and we can see that here, we have declared that our base type is auction injury. Although, even if you don't put that there, any framework, kind of figures it out. And this is our discriminator, it's only in the database, it's not in the object model and this derived type has an additional property in additional collection that are not on the base type. And so likewise we can go to another, the competitive lot. We can also go

to the, I add normally lot allow the donation that basically stays the same. There's no differences just yet. Although, this will grow. But over in our test, that's where it gets interesting. So I'm actually going to go to auction entry mapping tester and control F12. Notice that I have six different tests and over in Consortium, lot mapping tester only have two tests. However, because Consortium lot is at entry that means that all of the different queries and all of the different persistence and rehydration scenarios that work on auction entry should work for Consortium lot. So I have to duplicate those tests, the answer is no and this is how. So in our auctions remapping tester, we all we do is we take all of the tests that create an auction entry and instead we factor that out. We extract that as a method that returns auction entry and we market virtual. That gives us the ability to add some polymorphism given that our mapping is polymorphic when they are tests to be polymorphic as well. So we're going to do here, Control Alt B, we're going to look at derive types, and you can see that I have a mapping tester class for each of the drive types. And so if I look at Consortium lot, mapping tester, it, in fact, does inherit it overrides create auction entry and the usages of this are not found in this file. They're used in the base file. And so then we only have to actually have two more tests. Now, if I run it, my shortcut key. Alt Up and I run it, control TR. Let's let this run. And look, I have 11 tests for Consortium. Lot, mapping tester. Why? Well, it's because I have the two tests that are here, too. Plus, I have the six tests that are here. That's eight. But, let's go and look down. And a few of these tests have extra test cases. Okay, that brings us up to 11. So make your test fixtures polymorphic, and then all of your derived types, it'll be really easy to make sure that you are keeping to the rules of object-oriented programming and making sure that a drive type is an instance of the base type and we're not accidentally breaking some functionality that worked with the base type because I'll just jump up to bite you when you're using the application. And then there's some weird bug, it's because you're using a derived type that was returned back from query. So I hope this helps and make sure to subscribe to Architect Tips and whatever podcast directory you found us, have a good day.

Thanks for watching Architect Tips. If you would like, help improving your team speed quality or software stability. Send us a note to [email protected]. On behalf of everyone at Clear measure. Thanks for watching and may God bless you.

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