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# I called the OnMap method but it's giving me the error message that I did not use it.

I'm stuck

Map.cs
```namespace TreehouseDefense
{
public class Map
{

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()
{

int x = 2;
int y = 4;
int Width =x;
int Length = y;

var point = new Point (x, y);
var OnMap = new OnMap(Width, Length);

Assert.Equals(Width, OnMap.Width);
Assert.Equals(Length, OnMap.Length);
}
}
}
```
Point.cs
```using System;

namespace TreehouseDefense
{
public class Point
{

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));
}
}
}
``` 