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Unit Testing in .NET Core Practice Exam

Unit Testing in .NET Core Practice Exam


About Unit Testing in .NET Core Exam

This exam assesses your ability to write, manage, and execute unit tests in a .NET Core environment. Unit testing is a crucial practice in software development, ensuring code quality, reliability, and maintainability by testing individual components in isolation. This exam covers key topics such as understanding unit testing principles, working with popular testing frameworks like xUnit, NUnit, and MSTest, and applying mocking techniques for dependencies. You'll also demonstrate your ability to integrate unit testing into the .NET Core development lifecycle, including tools for continuous integration and test automation.


Skills Required

  • Familiarity with popular unit testing frameworks for .NET Core such as xUnit, MSTest, and NUnit, including how to create, run, and manage tests effectively.
  • Proficiency in writing unit tests that focus on testing the functionality of methods and components in isolation, using mocks and stubs to simulate dependencies.
  • Understanding of the TDD approach, where tests are written before the code, ensuring that the code adheres to requirements and passes tests as development progresses.
  • Skill in using libraries such as Moq or NSubstitute for creating mock objects and understanding how dependency injection can facilitate easier unit testing in .NET Core applications.
  • Ability to integrate unit testing into the development pipeline using CI/CD tools like Azure DevOps, Jenkins, or GitHub Actions, ensuring automated execution of tests for every code change.
  • Ability to troubleshoot and maintain unit tests, fixing broken tests and refactoring code to ensure long-term test effectiveness and reliability.
  • Familiarity with tools and methods for measuring and improving code coverage to ensure critical paths are being properly tested.


Who should take the Exam?

This exam is ideal for .NET Core developers who want to validate their expertise in unit testing and its integration within the software development lifecycle. It is particularly beneficial for developers who are involved in ensuring the quality and maintainability of .NET Core applications.

  • Software Developers and Quality Assurance Engineers
  • Test Automation Engineers
  • Development Team Leads and Architects


Course Outline

The Unit Testing in .NET Core Exam covers the following topics - 

Domain 1 - Course Introduction

  • Overview of Manual Testing
  • Benefits of Automated Testing
  • Essential Tools for Testing
  • Types of Tests and Their Applications
  • The Testing Pyramid Concept
  • Logical Stages in Automated Testing


Domain 2 - First Unit Test

  • .NET 6 Update: Nullable Types
  • Project Creation and Setup
  • Creating an MSTest Project
  • Writing the First Unit Test
  • Example of a Failed Test


Domain 3 - Unit Testing Fundamentals

  • Setting Up an NUnit Project
  • Writing the First NUnit Test
  • Debugging and Using Assertions
  • Assignment 1: Odd Number Checker
  • Assignment 1 Solution: Odd Number Checker
  • Assertion Models and Their Applications
  • Testing Multiple Values
  • Combining Unit Tests with Expected Results
  • Asserting Doubles and String Values
  • Using String Assert Helper Methods
  • Asserting Null Values
  • Global Initialization for Class


Domain 4 - Advanced NUnit Testing Concepts

  • Asserting Collections with Helper Methods
  • Using Range Assert and Multiple Asserts
  • Working with Exceptions
  • Asserting Exceptions without Messages
  • Setting Up Inheritance in Tests
  • Asserting Object Types


Domain 5 - Unit Testing with MOQ

  • Setting Up the Bank Account and Logger Classes
  • Demonstrating Integration Tests
  • Writing Unit Tests with Fake Logger
  • Introduction to Mocking with MOQ
  • MOQ Setup and Execution
  • Handling Missing MOQ and Conditional Return Values
  • Default Return Values in MOQ
  • Using MOQ with Out and Ref Parameters
  • Evaluating Return Values with MOQ
  • Implementing MOQ Properties and Callbacks
  • Verifying MOQ Calls


Domain 6 - xUnit Testing Framework

  • Setting Up an xUnit Project
  • Comparing xUnit with Other Frameworks
  • Building the xUnit Calculator (Parts 1 & 2)
  • Using MOQ with xUnit
  • Custom xUnit Test Case for Customers


Domain 7 - Real-World Example with NUnit

  • Setting Up the Main Project and Overview
  • Bongo Project Code Review
  • Bongo Models Date Checker (Parts 1 & 2)
  • Setting Up Data Access Unit Test Project
  • Working with In-Memory Databases for Unit Testing
  • Addressing Bugs and Pitfalls in Data Access Unit Tests
  • Configuring the Bongo Core Unit Test Project
  • Using MOQ in Bongo Core for GetAllBooking Test
  • Bongo Core Exception Handling in Unit Tests
  • Setting Up and Testing Save Booking in Bongo Core
  • Writing Test Cases for Return Codes in Bongo Core
  • Structuring and Separating Unit Tests in Bongo Core
  • Configuring the Bongo Web Test Project
  • Unit Testing the Bongo Web Index Action Method
  • Validating View Names in Bongo Web
  • Writing Controller Unit Tests for Bongo Web

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