grid points

source/core/src/main/com/csse3200/game/utils/math/GridPoint2Utils.java

@@ -12,4 +12,8 @@ public class GridPoint2Utils {
   private GridPoint2Utils() {
     throw new IllegalStateException("Instantiating static util class");
   }
+
+  public static GridPoint2Utils createInstance() {
+    return new GridPoint2Utils();
+  }
 }

source/core/src/test/com/csse3200/game/utils/math/GridPoint2UtilsTest.java

@@ -0,0 +1,30 @@
+package com.csse3200.game.utils.math;
+
+import com.badlogic.gdx.math.GridPoint2;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class GridPoint2UtilsTest {
+
+    /**
+     * testZero() ensures that GridPoint2Utils.ZERO constant is (0, 0).
+     * GridPoint2Utils.ZERO is a constant representing the point (0, 0).
+     */
+    @Test
+    public void testZero() {
+        GridPoint2 zero = GridPoint2Utils.ZERO;
+        assertEquals(0, zero.x);
+        assertEquals(0, zero.y);
+    }
+
+    /**
+     * testInstantiation() checks if private constructor of GridPoint2Utils throws an exception
+     * while creating an instance.
+     */
+    @Test
+    public void testInstantiation() {
+        assertThrows(IllegalStateException.class, () -> {
+            GridPoint2Utils.createInstance();
+        });
+    }
+}