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C# Unit Testing in C# Writing Unit Tests First Test

Posted by Amy Shah
Amy Shah
25,337 Points

Here is what I attempted I am getting an error that says I did not call the OnMap method

I though I did try to call the OnMap method but it is not working

Map.cs 
namespace TreehouseDefense
{
    public class Map
    {
        public readonly int Width;
        public readonly int Height;

        public Map(int width, int height)
        {
            if(width < 1 || height < 1)
            {
                throw new System.ArgumentOutOfRangeException(
                    "Map must be at least 1x1");
            }

            Width = width;
            Height = height;
        }

        public bool OnMap(Point point)
        {
            return point.X >= 0 && point.X < Width && 
                   point.Y >= 0 && point.Y < Height;
        }
    }
}
MapTests.cs 
using Xunit;

namespace TreehouseDefense.Tests
{
    public class MapTests
    {
        [Fact]
        public void OnMapTest()
        {
            Assert.True(false, "This test needs an implementation");
        }

        [Fact]
        public void OnMap()
        {
           Assert.True(true, "sdfaf");
        }
    }
}
Point.cs 
using System;

namespace TreehouseDefense
{
    public class Point
    {
        public readonly int X;
        public readonly int Y;

        public Point(int x, int y)
        {
            X = x;
            Y = y;
        }

        public double DistanceTo(Point point)
        {
            return Math.Sqrt(Math.Pow(X - point.X, 2.0) + Math.Pow(Y - point.Y, 2.0));
        }
    }
}

1 Answer

Mohammad Laif
PLUS
Mohammad Laif
Courses Plus Student 22,297 Points
Mohammad Laif
Mohammad Laif
Courses Plus Student 22,297 Points

You need to create a point and a map. Then call the onMap() from your map object and pass your point there. FYI, your point need to be inside your map range, so it could return true.

using Xunit;

namespace TreehouseDefense.Tests
{
    public class MapTests
    {
        [Fact]
        public void OnMapTest()
        {
            var myPoint = new Point(1,1);
            var myMap = new Map(4,4);
            Assert.True(myMap.OnMap(myPoint), "This test needs an implementation");
        }
    }
}