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Unit Testing an ASP.NET Core Web API

Kevin Dockx

Unit testing your ASP.NET Core Web API helps with improving its reliability. This course will teach you the ins and outs of unit testing with xUnit in detail.

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Unit testing your ASP.NET Core Web API helps with improving its reliability. This course will teach you the ins and outs of unit testing with xUnit in detail.

Unit testing improves the reliability of your application. In this course, Unit Testing in ASP.NET Core Web API, you’ll learn the ins and outs of unit testing with xUnit.net.

First, you’ll explore the arrange, act, and assert pattern by covering core unit testing scenarios like asserting on strings, collections, and exceptions. Next, you’ll discover different approaches to set up your test context, work with data-driven tests, and how to isolate tests.

Finally, you’ll learn different approaches to testing API-specific concerns like testing controllers, middleware, and filters. At the end of the course, you’ll learn how to integrate testing in your workflow.

When you’re finished with this course, you’ll have the skills and knowledge needed to improve your application reliability with unit testing.

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What's inside

Syllabus

Course Overview
Introduction to Unit Testing
Tackling Basic Unit Testing Scenarios
Setting Up Tests and Controlling Test Execution
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Working with Data-driven Tests
Isolating Unit Tests with ASP.NET Core Techniques and Mocking
Unit Testing ASP.NET Core API Controllers
Unit Testing ASP.NET Core Middleware, Filters and Service Registrations
Integrating Unit Tests In Your Development and Release Flows

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Explores an industry-standard testing framework for web applications
Introduces essential unit testing concepts using xUnit, a widely adopted framework
Delves into advanced testing techniques like data-driven tests and isolation with mocking
Specific focus on unit testing in ASP.NET Core, making it suitable for developers working with this framework
Covers essential topics for unit testing web APIs, including testing controllers and middleware
Taught by Kevin Dockx, who is recognized for their work in software testing

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Unit Testing an ASP.NET Core Web API with these activities:
Review notes from previous xUnit courses
Reacquaint yourself with the basics of unit testing using xUnit before starting this course to ensure a solid foundation.
Browse courses on XUnit
Show steps
  • Gather notes and materials from past courses or workshops on xUnit.
  • Review the core concepts and syntax of xUnit.
  • Go through examples of writing unit tests with xUnit.
Join a study group for unit testing in ASP.NET Core
Collaborate and learn from others by joining a study group focused on unit testing in ASP.NET Core.
Browse courses on Unit Testing
Show steps
  • Find or create a study group with other learners interested in unit testing.
  • Establish regular meeting times and a communication platform.
  • Set goals and identify topics to cover in each session.
  • Discuss course materials, share knowledge, and work on practice problems together.
Follow a tutorial on setting up unit tests in ASP.NET Core
Complement the course by following a guided tutorial to set up and configure unit testing in an ASP.NET Core environment.
Browse courses on Unit Testing
Show steps
  • Find a reputable tutorial on setting up unit tests in ASP.NET Core.
  • Follow the steps in the tutorial to set up your unit testing environment.
  • Run sample unit tests to verify your setup.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Write unit tests for simple ASP.NET Core API methods
Reinforce your understanding by practicing writing unit tests for basic ASP.NET Core API methods.
Browse courses on Unit Testing
Show steps
  • Create a simple ASP.NET Core API project.
  • Write a few simple API methods.
  • Write unit tests for each method, asserting on expected outputs.
  • Run the unit tests and debug any failures.
Read 'xUnit Test Patterns' by Gerard Meszaros
Enhance your unit testing skills by reading a comprehensive book that covers various test patterns and best practices.
Show steps
  • Obtain a copy of 'xUnit Test Patterns' by Gerard Meszaros.
  • Read and understand the concepts presented in the book.
  • Apply the patterns and techniques in your own unit testing projects.
Create a blog post on unit testing best practices
Deepen your understanding by creating a blog post that summarizes and shares your insights on unit testing best practices.
Browse courses on Unit Testing
Show steps
  • Research and gather information on unit testing best practices.
  • Organize your findings into a coherent outline.
  • Write the blog post, providing clear explanations and examples.
  • Proofread and edit your post.
  • Publish your blog post on a relevant platform.
Contribute to an open-source unit testing project
Gain practical experience and contribute to the wider community by contributing to an open-source unit testing project.
Browse courses on Unit Testing
Show steps
  • Identify an open-source unit testing project that aligns with your interests.
  • Review the project's documentation and guidelines for contributing.
  • Find a suitable issue or feature to work on.
  • Develop and test your contribution.
  • Submit a pull request with your changes.

Career center

Learners who complete Unit Testing an ASP.NET Core Web API will develop knowledge and skills that may be useful to these careers:
Software Engineer
Software Engineers apply engineering principles to software development. They design, build, and test software programs and applications. This course provides you with the skills needed to build a foundation in web development using ASP.NET Core and xUnit testing to create more reliable web applications.
Web Developer
Web Developers design and build websites and web applications. They write code that makes these applications work. This course can benefit Web Developers who are using or moving to ASP.NET Core for a new project or organization.
Software Test Automation Engineer
Software Test Automation Engineers automate testing to increase test coverage, efficiency, and speed. This course can help build a foundation in web development and testing with ASP.NET Core and xUnit.
Backend Developer
Backend Developers design, build, and maintain the server-side logic, databases, and architecture for a web application. This course can be useful for Backend Developers who want to build a foundation in developing and testing with ASP.NET Core and xUnit.
Cloud Engineer
Cloud Engineers utilize cloud computing platforms to design, build, and maintain web applications. This course provides skills in API testing and development with ASP.NET Core and xUnit for building and maintaining cloud applications.
DevOps Engineer
DevOps Engineers combine software development and information technology operations to build and maintain software systems. This course can introduce ASP.NET Core web API development and help establish a foundation in testing with xUnit.
Quality Assurance Analyst
Quality Assurance Analysts work on improving the quality of software and application development. They create tests to ensure software is bug-free and debug code to solve programming errors. This course may be useful for Quality Assurance Analysts who want to build a foundation in web testing for better quality control.
Test Engineer
Test Engineers design and execute tests to find bugs, defects, and other issues in software. This course may be useful for Test Engineers to build a strong foundation in web development and testing.
Full-Stack Developer
Full Stack Developers build both the front-end and back-end of web applications. This course provides a foundation in developing and testing ASP.NET Core web APIs that can be valuable to Full Stack Developers.
Technical Support Engineer
Technical Support Engineers help users solve software and hardware problems with technical products. Familiarity with web development and testing can help troubleshoot and debug user issues faster.
Business Analyst
Business Analysts work with stakeholders to understand their business needs and then use that knowledge to define and implement software solutions. This course can be useful for building a foundation in web development and testing.
Data Analyst
Data Analysts perform data analysis to find and interpret data for organizations. This course can be helpful for building a foundation in testing data-driven applications with ASP.NET Core and xUnit.
Product Manager
Product Managers oversee the development and implementation of a software product. This course can be helpful for understanding the technical process of building and testing with ASP.NET Core.
Project Manager
Project Managers lead software development teams. This course can be helpful for understanding the technical challenges of the team and how to assess progress in testing software.
Computer Systems Analyst
Computer Systems Analysts plan, design, and implement computer systems to meet an organization’s needs. This course can help provide a foundation in web development and testing.

Reading list

We've selected eight books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Unit Testing an ASP.NET Core Web API.
Covers various programming patterns commonly used in writing unit tests with the xUnit framework, which will supplement the course's instruction on xUnit.
Provides a high level overview of the general principles and patterns in unit testing, which will be valuable context for the course on unit testing in ASP.NET Core Web API.
Covers a wide range of topics related to ASP.NET Core, including unit testing, and will provide a broader context for the course's focus on unit testing.
Provides a detailed reference on the core aspects of C# 8 and .NET Core 3, which will be a useful reference for the course's emphasis on unit testing in C#.
Provides a deep dive into the Common Language Runtime (CLR) and C#, which will give learners background knowledge that will aid their understanding of the course topics.
Covers the fundamental principles and practices of software testing, providing valuable context for the course's focus on unit testing ASP.NET Core Web API.
Provides a practical guide to TDD in C, which can be useful for learners who want to apply the concepts to other programming languages like C#.
While this book focuses on Java with JUnit, it provides valuable insights into unit testing principles and best practices that can be applied to unit testing in ASP.NET Core Web API.

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