
using Xunit;
namespace ConsoleApp {
    public class ProgramTests {
        [Fact(DisplayName = "Default constructor sets Title to 'Unknown'")]
        public void DefaultConstructor_SetsTitleToUnknown() {
            var book = new Book();
            Assert.Equal("Unknown", book.Title);
        }

        [Fact(DisplayName = "Default constructor sets Author to 'Unknown'")]
        public void DefaultConstructor_SetsAuthorToUnknown() {
            var book = new Book();
            Assert.Equal("Unknown", book.Author);
        }

        [Fact(DisplayName = "Parameterized constructor sets Title correctly")]
        public void ParameterizedConstructor_SetsTitleCorrectly() {
            var book = new Book("Moby Dick", "Herman Melville");
            Assert.Equal("Moby Dick", book.Title);
        }

        [Fact(DisplayName = "Parameterized constructor sets Author correctly")]
        public void ParameterizedConstructor_SetsAuthorCorrectly() {
            var book = new Book("Moby Dick", "Herman Melville");
            Assert.Equal("Herman Melville", book.Author);
        }
    }
}

ProgramTests.cs

Master the art of building robust C# classes through hands-on drills and engaging theory. Explore constructors, encapsulation, access modifiers, static classes, and more, with real-world inspired challenges.

Dive into the world of constructors in C#. Learn how to initialize objects, use constructor overloading, and apply best practices for flexible class instantiation.

Explore the principles of class design, encapsulation, and how to protect and organize data using access modifiers.

Learn how to use static classes and members for shared data and utility functionality in C#.

Delve into advanced class construction topics: composition vs inheritance, and refactoring structs into classes for more complex scenarios.

Challenge: Create a Book Class

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