Today unit testing is the absolutely required skill which is required from any professional developer. Companies expect from developers to know how to write unit tests including all the most important topics such as mocking and test driven development (TDD in short).

This course is all about practicing TDD using C# programming language and NUnit as a unit testing framework. Along the way, we will learn the concepts related to unit testing. This course does not cover all the features of NUnit. This course is way more interesting.

Learning unit testing and TDD puts a powerful and very useful tool at your fingertips. Being familiar with unit testing and TDD you can write reliable and maintainable applications. It is very hard to lead a project which is not covered by unit tests.

Content and Overview  

This course is primarily aimed at developers who’re already familiar with the basics of unit testing and dependency injection. Some experience in C# programming is required. The course provides solid theoretical base reinforced by tons of practical material.

We start with basics of test-driven development. Why we need TDD? What is TDD? When TDD fails, three laws of TDD, different types of tests, tooling and other fundamental topics. This section is mostly theoretical.  

Theory is dead without practice, so starting from the second section, you’ll see tons of programming sessions where I’ll demonstrate how to implement generating of Fibonacci numbers, FizzBuzz, parsing of roman numerals, updateable spin synchronization primitives, tic-tac-toe or crosses and noughts game and game in sticks. You’ll also learn:  

• How a regular agile development process looks like  
• That you need to learn shortcuts to practice TDD more smoothly  
• Three Main TDD techniques: faking, triangulation and obvious implementation  
• Which tests to write first  
• How to start writing a test in a TDD manner  
• Stack kata  
• Immutable stack kata  
• And list kata  
• What is acceptance testing  
• About the SpecFlow acceptance testing framework  
• How to write acceptance tests with SpecFlow in Gherkin language  
• What are UI tests  
• What tools for writing UI Tests exist  
• How to access UI through the TestStack.White framework  

Have you heard about katas? No, I’m talking about programming. In the third section, you’ll learn what is a code kata and I’ll demonstrate three code katas:  

Growing an application by writing tests first, we’re not only writing unit tests first. So, in the next section, you’ll learn what is acceptance testing and integration testing. You’ll learn:  

You’ll need to see how to apply all the material learned by this moment. Practice helps very much with understanding especially when we uncover highly practical topics such as TDD. That’s why I decided to show you how all the things work in practice altogether. So, in the next section, you’ll see a real enterprise approach for working on a software project in action.  

• I’ll build a bridge to UI through TestStack.White applying the Page Object design pattern  
• I’ll write acceptance tests using the bridge built for accessing UI  
• I’ll implement ViewModels and all the corresponding business-logic  
• What is TDD in the end? Is it possible to live without it?  
• The relationships between TDD and Agile development process  
• Should we design architecture upfront or not?  
• Do unit tests guarantee the success?  
• Quality of tests, some criterions  
• How to express data for writing unit tests  
• Shouldly for writing more readable assertions  
• Singletons, Static classes and testability, Builder design pattern  
• And some other important topics

The last two sections are rather philosophical. We will discuss:  

• What is TDD in the end? Is it possible to live without it?  
• The relationships between TDD and Agile development process  
• Should we design architecture upfront or not?  
• Do unit tests guarantee the success?  
• Quality of tests, some criterions  
• How to express data for writing unit tests  
• Shouldly for writing more readable assertions  
• Singletons, Static classes and testability, Builder design pattern  
• and some other important topics

Here is my Teaching Approach -

No fluff, no ranting, no beating the air. I esteem your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth. For absolute beginners, I offer my help on Skype absolutely free, if requested.

Take this course, and you will be satisfied.

Teaching Approach

No fluff, no ranting, no beating the air. I respect your time. The course material is succinct, yet comprehensive. All the important concepts are covered. Particularly important topics are covered in-depth. For absolute beginners, I offer my help on Skype absolutely free, if requested. 

Take this course, and you will be satisfied. 

Build a solid foundation in software architecture applying Dependency Injection with IoC-Containers

In many of my courses I use techniques of Dependency Injection and each time students write me private messages saying that they don't what it is and thus they don't understand what's going on in the course I teach. This is very unfortunate from the learning perspectives.

Dependency Injection is the set of techniques that allow to supply dependencies to objects. Actually, if you have ever passed dependencies via constructors, then you applied the so-called constructor injection. Dependency Injection (DI) is simple and difficult at the same time. On one hand, DI is comprised of simple techniques and on the other hand, when we need to bring DI to the next level, we need to make things more complicated using the so-called DI or IoC (Inversion of Control) Containers. These are the frameworks which perform dependency injection automatically. You just need to set one up in the application root (an extremely important notion which you'll learn about in the course) and after that, it will resolve all the dependencies it knows about in the runtime.

If you still don't understand what am I talking about, just believe me, you absolutely need to know about Dependency Injection. This course will tremendously improve your understanding of how software architectures emerge. So, this course is "must watch" for anyone who still doesn't understand what is DI and IoC-Containers.

Content and Overview 

This course is aimed at all kind of developers. It provides solid theoretical base reinforced by practical material. 

The course covers:

• Introduction to Inversion of Control:
• Dependency Inversion Principle (DIP), Inversion of Control (IoC), Dependency Injection (DI),
• Dependencies and their types, Pure DI and IoC-Containers, Service Locator
• The Architectural Implications of Dependency Injection
• DI-related Anti-Patterns & Refactorings: 
• Control Freak, Hidden Dependencies, Temporal Coupling,
• Constructor Over-Injection and how to avoid it,
• Ambient Context, Facade Service, Property Injection vs Bastard Injection, Cyclic Dependencies
• Refactoring Example of an existing code base applying Dependency Injection
• How to reap the fruits of DI
• DI-Containers (IoC-Containers):
• Overview, Unity, Late Binding with Unity, Aspect-Oriented Programming (AOP), Interception vs Pure DI vs AOP Tools,
• Setting up a bootstrapper with Unity, Autofac and Castle.Windsor

Learn how to write C# code in a functional style. The “Functional Programming in C#” is for you if you want to improve your code, design and architecture. It means you are going to learn how to write code of the high quality: readable, understandable and reliable.

Learn Functional Programming in the context of clean coding and building types of high quality 

• Get Deep Understanding of what is Functional Programming 
• Learn how to design Immutable types in C# 
• Apply new C# 6 and C# 7 features to write better code in a functional style 
• Learn how to Extend and Compose any Types 
• Handle Errors and Exceptions in a functional programming style 
• Tackle the Problem of Null-Values by the means of functional programming 

Foundations of Functional Programming

Despite the fact that C# is primarily an object-oriented language, it is very powerful on features which enable functional programming style. In fact, C# is one of the richest on features language among object-oriented languages in the world nowadays. But with great power comes great responsibility. It's challenging to use all those features in a right way. 

You probably have already heard the following well-known statement: most code sucks. Well, this course is all about how to produce code which doesn't suck. 

Owning skills of producing well-designed and well-implemented types with regards to functional programming principles. 

Content and Overview 

This course is aimed at all the C# developers, from beginners to seniors. Topics which are covered in the course are relevant for all kinds of C# developers since all developers design and implement types. The topics complexity is very different. There are plenty of very simple topics, and at the same time, there are topics which require from you a solid C# background. There are plenty of code examples throughout this course, so you will learn both theoretical and practical material. 

• We’re going to start with the theoretical foundations of the functional programming paradigm. You’ll learn what is Functional Programming and what are the benefits of applying that paradigm.
• In the second section, we’re going to elaborate the core concepts of the functional programming. You’ll learn more about immutability, purity, side effects and expressions.
• To write modern code in a functional style, you need to learn modern C# features appeared in C# 6 and C# 7.
• We’re going to learn more about immutability in a separate section. This is a very important topic.
• We’re going to learn how to extend types. You’ll see practical cases, you’ll learn about general extensions needed for functional programming.
• After mastering the topic of types extending you will face the great problem of exceptions handling. Yep, it's a hard nut to crack. We will start from discussing a question of why we use exceptions as a mechanism of errors handling. And why C# team didn't invent any other mechanisms?
• In the end, we will look at how to fight with null values. As you may know, Tony Hoar said that the invention of a null value was his billion-dollar mistake.

To sum up, the course covers the following topics: 

• Theoretical Foundations of Functional Programming 
• Core Concepts of Functional Programming 
• Functional Features in C# 
• Immutability in C# 
• Extendibility in C# 
• Dealing with Errors 
• Dealing with Nulls 

------------------------------------------------------------ 

Keywords related to the course: 

• C# Clean Code 
• C# Best Practices 
• Functional Programming in C# 
• C# Functional Programming 
• Clean Code in C# tutorial

For the last two decades, computers became faster by increasing the number of CPU cores. However, the fact of having more cores itself doesn’t make a computer drastically faster if those cores are not used by software properly. We, as software developers, should know how to write asynchronous and parallel executing code to make our applications faster and more responsive.

This course is all about developing more responsive and fast programs. Multithreading and Parallel Computing are topics for those who already have some experience in programming, otherwise, you may face difficulties with understanding the content.

Anyway, this course covers:

• Theoretical foundations of asynchronous programming: main concepts, processes, threads and so on
• Low-level Thread API, APM, and EAP
• Task Parallel Library (TPL) including starting tasks, canceling tasks, chaining tasks, waiting for tasks, IO-based tasks, exceptions handling and other
• Async and Await feature of C#
• Synchronization including atomicity, Interlocked, Monitor (lock), ReaderWriterLockSlim, Semaphore, SynchronizationContext, and Mutex
• Signaling constructs such as AutoResetEvent and ManualResetEventSlim, CountdownEvent and Barrier
• Spinning including SpinWait, SpinLock and our own UpdateableSpin
• ConcurrentCollections including ImmutableStack, ImmutableQueue, ImmutableList, Immutable Sets, ImmutableDictionary, ConcurrentStack, ConcurrentQueue, ConcurrentBag, BlockingCollection
• Parallel Programming including Parallel class and PLINQ

Enroll and start learning the foundations of multithreading and parallel computing in .NET.

This is an advanced C# course.

Build a solid foundation in C# learning odd cases related to how the language is designed

This course contains mostly practical puzzles learning which you get a better C# developer. You can find out on the Internet tons of impractical puzzles which don’t make you a better C# developer. This is not about this course. Yes, of course, even impractical puzzles sometimes are helpful especially if you’re preparing for a C# interview. However, I bet on puzzles which teach you the thing you absolutely need to understand. Indeed, this course deepens your understanding of C#. Apart from that, you’ll learn some very important things like the problem of types substitution. You’ll learn about the fundamental problems related to processing date and time values. Believe me, you’ll be astonished! 

This course is built in a manner of a game. I’ll show you code examples in Visual Studio and ask to answer the question related to that code example. You’ll have some time to come up with your own answer and after that we continue. Puzzles, gotchas and cautionary tales are presented here to frighten and inspire you! Regardless of your current skills, you’ll remember things you’ve forgotten, learn things you didn’t know and become a more robust programmer. 

So, this course is "must see" for anyone who wants to improve his knowledge of C#.

Here is my Teaching Approach

No fluff, no ranting, no beating the air. I esteem your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth. For absolute beginners, I offer my help on Skype absolutely free, if requested.

Take this course, and you will be satisfied.

Content and Overview 

This course is aimed at all kind of developers. It provides solid theoretical base reinforced by the practical material. 

In short, this advanced C# course covers the following topics: 

• The evilness of the mutable structures. You’ll see several examples when mutable structures demonstrate the unexpected behavior. 
• Generics and arrays including specializations, constraints on generics, variance and covariance, Liskov substitution principle and more 
• The pitfalls in arithmetic: how floating-point numbers are implemented, how to compare them, how arithmetic overflow behaves with different types, how rounding works, the difference between decimal and money 
• Collections and LINQ: how to alter an existing list, the deferred execution of LINQ expressions, the peculiarities of closures within for and foreach loops, list conversion 
• Methods and Overloading: overloading base methods, method hiding, when to prefer property over method; the reasons on why to avoid optional parameters, implementing abstract classes 
• Date and Time puzzles: concepts related to dates and times including how a computer stores time, UTC and GMT, time zones, global and local perspectives; time-zone related puzzles, roundtrips, arithmetic on dates, how to calculate the age. 
• FAQ at C# Interviews: abstract classes versus interfaces, how to implement the Dispose pattern, what is the difference between encapsulation and information hiding, encapsulation in practice, strings interning, constant versus read-only fields, lock versus monitor, how to rethrow exceptions, when to use StringBuilder instead of string 
• And yet a short section of miscellaneous puzzles Enroll and start an exciting journey learning C# puzzles

Extension methods were introduced in C# 3 and since then became an indispensable part of the .NET platform. That enormously powerful feature allowed to build a whole framework built upon it called LINQ or Language Integrated Query. I’ve seen many code bases which avoid using LINQ and rely on old procedural style of programming. If you still feel yourself uncomfortable with LINQ or you want to improve your understanding of LINQ, then this course is for you. As you might know, LINQ was inspired by functional paradigm and F# in particular. So, this course is not only about LINQ but about the fundamentals of functional programming as well.

This course covers:

• The basics of LINQ: extension methods, the idea of pipelining, IEnumerable, implementing our own extension, query syntax, pitfalls of LINQ operations, how to alter a list
• Generating data streams: Enumerable class and its main operations, implementing your own extension which generates a stream of data
• Filtering, Ordering, Projecting: Parsing a CSV file, ThenBy, First, Last, Single, TakeWhile, SkipWhile,Any, All, Contains, SequenceEqual, Select and SelectMany
• Joining, Grouping, Aggregating: Join, Group, GroupJoin, Zip, Sum, Average, Min, Max
• Conversions: OfType, Cast, ToArray, ToList, ToDictionary, ToLookup, AsEnumerable, AsQueryable
• LINQ to XML: overview, generating XML from a collection, reading XML
• EF and LINQ: Expression Trees, Inserting into and Reading from a database
• Extendibility in C#: what is functional programming (FP), purity and side effects, extending IDisposable, general-purpose extensions, extending StringBuilder, Primitive Obsession

In short, this is a great course, so enroll right now and start learning LINQ and the fundamentals of functional programming.

SOLID is an acronym which stands for SRP, OCP, LSP, ISP and DIP. These five acronyms in their turn stand for:  

• Single Responsibility Principle  
• Open/Closed Principle  
• Liskov Substitution Principle  
• Interface Segregation Principle  
• Dependency Inversion Principle

In this course, you’ll learn how to apply meta and SOLID principles so that your application will live a long healthy life. It means you are going to learn how to write code of the high quality: readable, understandable and reliable.  

Improve your knowledge in object-oriented programming  

• Understand the meta principles on which all the other development principles are based  
• Understand the symptoms of code defects  
• Learn the foundations of SOLID principles
• Learn how to detect the violations of SOLID principles and how to fix the problems
• Learn how meta principles and SOLID principles are related to each other and how to find the balance between them  

Foundations of writing object-oriented code

Despite the fact that C# is a very rich on features language, it's very common to see poorly designed and implemented applications in a real world. Language by itself does not guarantee that the architecture of an application will be great. In order to design and build maintainable software, we need to understand the principles of software development. This video course is exactly about how to achieve clean and maintainable software.  

You probably have already heard the following well-known statement: most code sucks. Well, this course is all about how to produce code which doesn't suck.  

Owning skills of producing a well-designed and well-implemented types is the prerequisite for the other developers to treat you as a decent professional.  

Content and Overview  

This course is aimed at middle and senior developers. Solid experience in C# is required.  

There are plenty of code examples throughout this course so that you will learn both theoretical and practical material.  

Starting with SOLID principles we will go further to the meta-principles. Going through the SOLID principles, you’ll also learn about the related patterns. Then we will get to the problem of contradictions between different principles. You’ll learn about the relationships between SOLID principles and meta principles.  

In general, you’ll learn in this course:  

• SRP  
• OCP  
• LSP  
• ISP  
• DIP  

These are the SOLID principles. You’ll learn the background problems that can be solved by particular principle, you’ll see the demonstrations in code, you’ll learn the related patterns to every principle.  

Learning DIP you’ll in addition learn what is Dependency Injection, Inversion of Control, IoC-Containers and what are the architectural implications of DI.  

Here are other topics you’ll learn in the course:  

• DRY – don’t repeat yourself  
• KISS – keep it simple stupid  
• YAGNI – You Ain’t Gonna Need It  
• SoC – separation of concerns  
• CQS – command query separation  
• Law of Demeter  
• Principle of Least Astonishment  
• Information Hiding and Encapsulation  
• API Development Principles  
• Contradiction between SOLID and YAGNI  
• Contradiction between OCP and YAGNI  
• What is Architecture and Design

Teaching Approach

No fluff, no ranting, no beating the air. I respect your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth.

Take this course, and you will be satisfied!

------------------------------------------------------------

Keywords related to the course:

• Software Architecture
• SOLID Principles Tutorial C#
• SOLID Tutorial C#
• Software Design
• SOLID Principles
• SRP, OCP, LSP, ISP, DIP

Modern integrated development environments or IDEs in short allows us to perform miracles. Why? Because we live in the twenty first century and modern computers are so powerful that modern IDEs become indispensable assistants which can save us thousands of hours. A decade ago, no one could imagine how much powerful IDEs will become in the future. However, nowadays, developers are armed by super powers such as deep static analysis, automatically performed refactorings, code fixes, super simple navigation and many other things.

Want to become an iron developer? Then listen to me.

This course consists of two main parts. The first one concerns the features of bear visual studio without any super-powerful plugins and it covers:

• Navigate through the code base: how to select code, how to find code, camel humps in IntelliSense, navigating through the tabs
• Edit and format the code base: deleting and removing code, formatting, commenting and applying refactorings
• Run and debug your code: working with breakpoints, new features of modern visual studio, different debugging windows
• Code snippets: existing code snippets and creating custom code snippets
• Extensions for Visual Studio: Color VS Output, NCrunch, PInvoke, .NET Portability Analyzer, Roslynator

The second part is dedicated to ReSharper (R#). R# is one of the flagship tools developed by JetBrains. I need to warn you that R# is a paid tool but despite of this fact, the majority of professional developers use it on an everyday basis.

R# is a Visual Studio plugin which empowers it by tons of refactorings, analytical features, fixes and a ton of other features. So, the second part is dedicated to R# and it covers:

• Installing R#
• R# Settings
• Creating Code with R#
• Exploring Code with R#
• Refactoring with R#
• Unit Testing with R#
• R# Annotations

This is only an introduction to R#. I’ll update this course from time to time teaching you other cool features provided by R#.

Enroll and start learning how to double your coding speed in bear Visual Studio and Visual Studio empowered by R#!

This course is all about growing object-oriented software guided by tests.

SpecFlow is a framework which brings Behavior-Driven Development (BDD) into life. It is all about filling the gap between technical people and domain experts. SpecFlow is based of a Gherkin language which is very close to natural (though, it is formalized). So, non-technical people can write executable documentation on their own.

Selenium is a framework which allows to drive browsers (Chrome, Firefox, Opera etc.). In other words, with the power of Selenium, you can write a program which automatically interacts with elements on a web page.

TestStack.White (sometimes, written as "teststack white") is a framework which allows to drive WinForms and WPF applications.

This course covers:

• Theoretical background behind different types of testing (unit, integration, and acceptance testing)
• SpecFlow: generating steps, run and debug tests, passing parameters, scenario outline, data table, converting parameters, converting data table, custom conversions, sharing data, categorizing tests, scoped execution, hooks and other features
• Selenium WebDriver: Locators, XPath Locators, CSS Locators, Interacting with all the types of Elements, Timeouts: Explicit and Implicit, Locators Priority, Picking Scenarios to Test, "Page Object" design pattern, Page Object Factory, uploading files
• Scraping a Live Web Site with Selenium WebDriver
• Selenium Extras: managing a web browser
• TestStack.White and Building a WPF App by TDD (with MVVM)
• Appendixes: intro to Unit Testing and Test-Driven Development

Why learn about data structures and algorithms? 

Algorithms and data structures constitute the fundamentals of programming.

• Good understanding of algorithms and data structures is one of the most important requirements for a great number of work positions. You'll have to solve many problems related to algorithms and data structures at coding interviews. Indeed, you can live without an understanding of algorithms and data structures, in general. However, you can do that until you face a real problem which requires to choose right data structures and implement custom algorithms. If you haven't ever faced such problems, believe me, this is just a matter of time. One day, you'll face such a problem and if you don't understand algorithms and data structures in depth, you'll feel yourself ashamed and helpless. You'll be stuck.
• If you're not good at algorithms and data structures, you'll never pass a coding interview in a decent company. Almost all the companies  prefer to hire those developers who have good understanding of algorithms and data structures, remember that. Do not delay the study of fundamental concepts.
• Better hardware is not a solution for all the performance-related problems. Sometimes, you need to write software for very slow devices. And that very often depends on the budget of a customer, by the way, so you don't have a control over it.
• You'd better to understand what's going on under the hood at least one level in-depth. Indeed, if you don't understand how List works, sometimes you'll make sub-optimal or completely wrong decisions.

Why this course?

You may ask me "why should I take exactly your course?" And here is my answer:

• This course is a comprehensive tutorial which covers a great number of topics
• I tried to do my best to make this course not dry
• This course concentrates not only at algorithms and data structures in general but it uncovers the internals of data structures and algorithms built-in .NET BCL (.NET Core's BCL is the same regarding fundamental data structures and algorithms)
• This course is practical with exercises and solutions
• This course will definitely help you to pass technical interviews
• This course is made by a professional software developer with more than 10 years of real-world experience
• and many other reasons :)

What's in the Course?

For now, the course covers:

• Introduction to Algorithms and Data Structures: what is a data structure, abstract data type and what's the difference between these notions. What is an algorithm and why they are important to us?
• Introduction to Algorithm Analysis: determine how long will a program work, build a log-log plot, approximations, order of growth (Big-O notation), memory consumption
• Arrays: arrays in C#, arrays in memory, time complexity of operations on arrays
• Sort Algorithms: bubble sort, selection sort, insertion sort, recursion, shell sort, merge sort, quick sort, stability of sort algorithms
• Lists: List built-in .NET BCL, nodes, linked list including singly and doubly linked lists, linked list built-in .NET
• Stacks: theory and practice; stack based on array, stack based on a linked list, stack built-in .NET
• Queues: theory and practice; queue based on array, circular queue, queue based on linked list, queue built-in .NET BCL
• Search Algorithms: linear search, binary search (more will be added soon)
• Immutable Collections: immutability and memory pressure, immutable stacks and queues, immutable list, immutable sets, immutable dictionaries, builders in immutable collections
• Other big sections upcoming soon including:
• Trees, Heaps, Hashtables

Take this course now and you'll be satisfied!

Improve your knowledge in object-oriented programming in the context of clean coding and building types of high quality

• Learn how to give the best names for API members 
• Learn all the tricks related to writing clean functions
• Avoid common architectural smells. Get rid of unpleasant smells
• Apply principles of functional programming: achieve immutability, remove side effects, extend types
• Avoid smells related to dependency injection
• Write cleaner unit tests
• Practice Test-Driven Development

Foundations of building object-oriented infrastructures

Despite the fact that C# is a very rich on features language, it's very common to see poorly designed and implemented types in a real world. In fact, C# is one of the richest on features language among object-oriented languages in the world nowadays. But with great power comes great responsibility. It's challenging  to use all those features in a right way.

You probably have already heard the following well-known statement: most code sucks. Well, this course is all about how to produce code which doesn't suck.

Owning skills of producing a well-designed and well-implemented types is the prerequisite for the other developers to treat you as a real professional.

Content and Overview

This course is aimed at all the C# developers, from beginners to seniors. Topics which are covered in the course are relevant for all kinds of C# developers since all developers design and implement APIs. The topics complexity is very different. There are plenty of very simple topics, and at the same time, there are topics which require from you a solid C# background. There are plenty of code examples throughout this course, so you will learn both theoretical and practical material.

The course covers the following topics:

• Meta Principles: DRY, KISS, YAGNI, SoC, CQS, PoLA, Encapsulation
• How to give better names for API members and what naming conventions exist in the .NET platform and suited for C#
• Common problems encountered by C# developers in the process of designing and implementing APIs: classes vs structures, creational patterns vs constructors, poor naming, excessively long methods, output parameters and so on.
• Common Architectural Design Smells such as Primitive Obsession, Hidden Dependencies, Violation of Law of Demeter and other.
• Functional Programming: immutability, temporal coupling, pipelining, extending IDisposable, Builder Design Pattern, abusing extension methods, dealing with errors
• DI-related anti-patterns: control freak, hidden dependencies, temporal coupling, ambient context, facade service, bastard injection, cyclic dependencies
• Clean Unit Tests: singletons and static classes, excessive number of interfaces, testing trivial code, testing of a single concern, different best practices
• Practicing TDD: definition, 3 laws, parsing roman numerals, continuous testing, implementing Tic-Tac-Toe

The list is far from being complete. The course covers a great number of topics.

Enroll and start Mastering the Art of Writing Clean Code in C#!

Build a strong foundation with this WPF Tutorial

Today, almost all applications have rich UI, console applications are very specific. Learning the essentials of WPF and XAML puts a powerful and very useful tool at your fingertips. Being familiar with WPF will make it absolutely easy to move to Universal Windows Platform (UWP) if needed, because these technologies rely basically on the same principles and they are both based on XAML.

Content and Overview

This course is primarily aimed at beginner to intermediate developers. It provides solid theoretical base reinforced by tons of practical material.

WPF is a very wide platform and it’s impossible to cover all its features in a single course, or in a single book. That’s why this course includes all the topics needed for the developing of a full-fledged Windows UI-application, sacrificing some advanced topics such as interoperation with Windows Forms, skinning, creating custom markup extensions etc.

The most beneficial aspect of this course is that it gives you the deep understanding of the WPF platform. For example, you will understand how the layout process really works. It helps to compose XAML quicker. Sometimes you’ll find yourself baffled by the events system of WPF without deep understanding of how it really works.

In short, the course covers the following topics:

• Basic notions of UI-development
• Controls
• Layout
• Data-Binding
• Core-Types of WPF
• Events and Dependency Properties
• Templates
• Resources
• Styles
• User Controls
• Custom Controls
• WPF application model (threading model, app life-cycle)

In the end we will recap what you have learned and you will try to understand where you have to go further with intention to master your skills. Here we will have a discussion of different paths you can go on.

MVVM (stands for Model-View-ViewModel) is a well-known architectural pattern in the world of WPF. Most enterprise level WPF applications are MVVM-based.

Learn deeply the concepts lying behind the MVVM pattern in order to understand what MVVM is in essence and how to pragmatically apply it to a WPF application. This is a great MVVM tutorial for beginners (beginners in MVVM, don't forget to look at prerequisites)!

Teaching Approach 

No fluff, no ranting, no beating the air. I esteem your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth. Take this course and you will be satisfied. 

Build a strong foundation in applying MVVM with this course 

In the case you’re just familiar with the WPF framework, learning this course will give you a level-up since you’ll be capable of developing professional WPF applications. Applying MVVM intelligently is a “must have” skill for WPF developers. 

If you are an experienced WPF developer, you might be interested in how MVVM frameworks may work under the hood. Throughout the course, we will be building a small MVVM framework similar to Caliburn.Micro. 

Content and Overview 

This course is primarily aimed at intermediate developers. Experts may also find interesting MVVM tricks provided in this course. If you are a beginner, be sure you’re ready to take this course, since it requires from you a solid C#-background and acquaintance with WPF. 

This course provides solid theoretical base reinforced by tons of practical material. This course is very practical (except the very first introductory module). 

“MVVM in WPF” is a very wide topic and it’s hardly possible to cover all the related challenges arising while applying MVVM. That’s why this course includes the most important topics understanding of which is a key for successful development. We will sacrifice some topics which may be interesting for students, but which are hardly connected with MVVM directly. What I’m talking about is, for example, the problem of setting up a full-fledged data access layer. Such topics are omitted. 

The most beneficial aspect of this course is that it gives you the deep understanding of the MVVM pattern. For example, you’ll see how to pass parameters to ViewModels through constructors, without using a static message bus, or passing parameters by explicitly setting properties of a ViewModel. 

In short, the course covers the following topics: 

• MVVM background: what is MVVM, why to use it, when to use MVVM etc.
• Connecting Views and ViewModels: View-First and ViewModel-First approaches 
• Design-Time data support 
• Configuring and using an IoC-container (by the example of Castle.Windsor 
• Communication channel between Views and ViewModels: commands, attached and blend behaviors, static message bus (EventAggregator) 
• Navigation: hierarchical UI composition, how to open dialogs, including modal dialogs, navigating to parameterized ViewModels (pass parameters into their constructors) 
• Models and validation 
• MVVM toolkits: Caliburn.Micro more closely
• Unit-Testing of ViewModels

------------------------------------------------------------

Keywords related to the course:

• MVVM in WPF
• MVVM tutorial
• MVVM pattern
• Model-View-ViewModel MVVM tutorial
• Caliburn.Micro
• View-First
• ViewModel-First

Teaching Approach

No fluff, no ranting, no beating the air. I esteem your time. The course material is succinct, yet comprehensive. All important concepts are covered. Particularly important topics are covered in-depth. For absolute beginners, I offer my help on Skype absolutely free, if requested.

Take this course, and you will be satisfied.

Build a solid foundation in Unit Testing with this course

This course is all about writing effective unit tests using C# programming language and NUnit as a unit testing framework. Along the way, we will learn the concepts related to unit testing. Today unit testing is an absolutely required skill from any professional developer. Companies expect from developers to know how to write unit tests including all the most important topics such as mocking and test driven development (TDD in short). This course does not cover all the features of NUnit. This course is way more interesting.

Learning unit testing puts a powerful and very useful tool at your fingertips. Being familiar with unit testing you can write reliable and maintainable applications. It is very hard to lead a project which is not covered by unit tests.

Content and Overview

This course is primarily aimed at beginner developers. It provides solid theoretical base reinforced by tons of practical material.

We start with basics of unit testing. What is a unit test? What unit testing frameworks exist? How to run and debug unit tests. After getting acquainted with the basics, we will get to the NUnit framework. Here you’ll learn how to install the framework, set the runner. Then you’ll learn the basics of assertions and arrange-act-assert triplet. Other key features of NUnit are also covered:

• Running tests from the console
• Setup and teardown unit tests
• Parameterized tests
• Grouping and ignoring

Practicing writing of unit tests, it’s impossible to avoid applying mocks. I like the word “test double” more, in general. By the way, you’ll learn what the difference between the following notion is:

• Test double
• Fake
• Dummy
• Stub
• Mock

You’ll learn how to write test doubles manually. You will also see a simple example of how to use a mocking framework for using mocks. I’ll use NSubstitute mocking framework for demonstration.

At the end of this section, you’ll get acquainted with two key approaches to unit testing, Classic or Detroit School and London School of unit testing.

You’ll separately learn the basic of test-driven development. It is hard to imagine a modern professional developer who doesn’t know about TDD, so you’ll learn what it is and what it is about. You’ll see the Red-Green-Refactor triplet in action.

I could not complete the course avoiding the best practices of writing unit tests. You’ll learn the basic concepts of the modern approach to unit testing called “pragmatic unit testing”. You’ll see what problems static classes and singletons bring regarding the unit testing. They make code harder to unit test. After that, you’ll learn the problem of extracting interfaces just for the sake of introducing shims for injecting dependencies.

You’ll know should you write unit tests for the trivial code. You’ll learn a lot more in the course.

So, in short, the course covers the following topics:

• Basic notions of Unit Testing
• NUnit and its basic features
• Test Doubles including fakes, dummies, stubs, spies and mocks
• How to write manual test doubles and how to use a mocking framework
• TDD, red-green-refactor triplet
• A great number of best practices of writing unit tests

In the end, we will recap what you have learned, and you will try to understand where you have to go further with the intention to master your skills.