
using Xunit;
using System;
using System.IO;

namespace ConsoleApp {
    public class ProgramTests {
        [Fact(DisplayName = "CleanUpProcess prints correct flow with try-catch-finally")]
        public void CleanUpProcess_PrintsCorrectFlow()
        {
            var cleaner = new ResourceCleaner();
            var sw = new StringWriter();
            Console.SetOut(sw);

            cleaner.CleanUpProcess();

            string output = sw.ToString();
            Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });

            Assert.Contains("Resource acquired", output);
            Assert.Contains("Processing resource", output);
            Assert.Contains("Exception handled", output);
            Assert.Contains("Resource released", output);
        }
    }
}

ProgramTests.cs

Master the art of robust C# programming by learning how to handle, create, and debug exceptions. This hands-on course guides you through real-world error handling scenarios, from basic try-catch to custom exceptions and safe file operations.

Learn the basics of exceptions in C#, how to use try-catch blocks, and why error handling is crucial for robust applications.

Learn to create your own exception types and use guard clauses to prevent invalid states in your code.

Master techniques for validating user input and safely parsing data to prevent runtime errors.

Handle file operations safely and learn to debug exceptions using stack traces and refactoring techniques.

Challenge: Using finally for Cleanup

Solution

Challenge: Using finally for Cleanup

Solution