Added more shape tests

AdventOfCode.Tests/2d-shapes/RectangleTests.cs

@@ -1,12 +1,46 @@
-using System;
+using AdventOfCode.Core.Shared.Grid;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace AdventOfCode.Tests._2d_shapes
 {
-    internal class RectangleTests
+    [TestFixture]
+    public class RectangleTests
     {
+        private Rectangle TestRectangle;
+
+        [SetUp]
+        public void SetupLine()
+        {
+            TestRectangle = new Rectangle(new Point(1,1), new Point(6,3));
+        }
+
+        [Test]
+        public void PointDoesIntersectRectangle()
+        {
+            Point testPoint = new Point(1,1);
+
+            bool intersects = TestRectangle.Intersect(testPoint);
+
+            Assert.That(intersects, Is.True);
+        }
+
+        [Test]
+        public void PointDoesIntersectOnLineRectangle()
+        {
+            Point testPoint = new Point(3, 1);
+
+            bool intersects = TestRectangle.Intersect(testPoint);
+
+            Assert.That(intersects, Is.True);
+        }
+
+        [Test]
+        public void PointDoesIntersectInRectangle()
+        {
+            Point testPoint = new Point(3, 3);
+
+            bool intersects = TestRectangle.Intersect(testPoint);
+
+            Assert.That(intersects, Is.True);
+        }
     }
 }