
using Xunit;
using Xunit;
using System;
using System.IO;

namespace ConsoleApp {
    public class ProgramTests {
        [Fact(DisplayName = "CreateSeatingChart returns a 3x4 array of names")] 
        public void CreateSeatingChart_ReturnsCorrectDimensionsAndNames() 
        {
            var chart = Program.CreateSeatingChart();
            Assert.Equal(3, chart.GetLength(0));
            Assert.Equal(4, chart.GetLength(1));
            string[] expectedNames = new string[] {
                "Alice", "Bob", "Charlie", "Diana",
                "Eve", "Frank", "Grace", "Heidi",
                "Ivan", "Judy", "Mallory", "Niaj"
            };
            int idx = 0;
            for (int i = 0; i < 3; i++)
            {
                for (int j = 0; j < 4; j++)
                {
                    Assert.Equal(expectedNames[idx], chart[i, j]);
                    idx++;
                }
            }
        }

        [Fact(DisplayName = "PrintSeatingChart prints each row with names separated by ' | '")]
        public void PrintSeatingChart_PrintsTableFormat()
        {
            string[,] chart = new string[3, 4]
            {
                {"Alice", "Bob", "Charlie", "Diana"},
                {"Eve", "Frank", "Grace", "Heidi"},
                {"Ivan", "Judy", "Mallory", "Niaj"}
            };
            var sw = new StringWriter();
            Console.SetOut(sw);
            Program.PrintSeatingChart(chart);
            string output = sw.ToString().Trim();
            string[] expectedRows = new string[] {
                "Alice | Bob | Charlie | Diana",
                "Eve | Frank | Grace | Heidi",
                "Ivan | Judy | Mallory | Niaj"
            };
            foreach (var row in expectedRows)
            {
                Assert.Contains(row, output);
            }
            Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
        }
    }
}

ProgramTests.cs

Master the essentials and advanced techniques of working with arrays in C#. This course guides you from the basics of declaring and initializing arrays, through practical manipulation, searching, and advanced operations like sorting and matrix calculations. Each section blends engaging theory with real-world themed challenges to ensure a hands-on, beginner-friendly learning experience.

Challenge: Seating Chart

Ratkaisu