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ASP.NET Core | Unit Testing Using xUnit and nUnit

Unit Testing is a software testing approach which is performed at development time to test the smallest component of any software. It means rather than testing the big module in one go, you test the small part of that module. A small component in the sense that it could be any function, any property or any class which is handling the specific functionality. Unit test cases help us to test and figure out whether the individual unit is performing the task in a good manner or not. It basically ensures us that the system is designed as per the requirements and help us to figure out the bugs before putting the actual code to the QA environment. When we talk about Unit Testing in Software Development, we have lots of advantages if we write it along with the actual code as follows. Unit Test cases reveal if anything is wrong with software design, software functionality and if it is not working as expected as per the requirements. Due to the help of the Unit Testing, we can get or catch th...
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ASP.NET Core | Performance Diagnostic Tools

Visual Studio Diagnostic Tools The  profiling and diagnostic tools  built into Visual Studio are a good place to start investigating performance issues. These tools are powerful and convenient to use from the Visual Studio development environment. The tooling allows analysis of CPU usage, memory usage, and performance events in ASP.NET Core apps. Being built-in makes profiling easy at development time. Application Insights Application Insights  provides in-depth performance data for your app. Application Insights automatically collects data on response rates, failure rates, dependency response times, and more. Application Insights supports logging custom events and metrics specific to your app. Azure Application Insights provides multiple ways to give insights on monitored apps: Application Map  – helps spot performance bottlenecks or failure hot-spots across all components of distributed apps. Azure Metrics Explorer  is a component of the Microsoft Azure portal...
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ASP.NET Core | Dependency injection for controllers

Dependency Injection  is a design pattern used to inject the object dependencies inside controllers. ASP.NET core supports built-in dependency injection, just you need to register those services in the startup file inside  ConfigureServices  method. You can add services as constructor parameters, ASP.NET Core runtime will resolve these dependencies from the service container. You can perform dependency injection in two ways. Constructor Injection Action Injection using  FromServices  attribute. You can access additional settings by using options pattern instead of directly injecting IConfiguration inside the controller.
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