Gjør nødvendige forandringer i klasser og interfaces relatert til Grid

Bytter rekkefølge mellom height og width
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Gjør slik at testene bruker Tile i stedet for TileType
Legger til manglende exception i setElement til IGrid og Grid

src/test/java/inf112/fiasko/roborally/objects/GridTest.java

@@ -1,50 +1,63 @@
 package inf112.fiasko.roborally.objects;
 
+import inf112.fiasko.roborally.element_properties.Direction;
 import inf112.fiasko.roborally.element_properties.TileType;
-import inf112.fiasko.roborally.objects.Grid;
 import org.junit.Before;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
 
 public class GridTest {
-    private Grid<TileType> grid;
-    private Grid<TileType> grid2;
+    private Grid<Tile> grid;
+    private Grid<Tile> grid2;
+    private Tile defaultTile;
 
     @Before
     public void setUp() {
+        defaultTile = new Tile(TileType.TILE, Direction.NORTH);
         grid = new Grid<>(7, 4);
-        grid2 = new Grid<>(5,8, TileType.TILE);
+        grid2 = new Grid<>(5,8, defaultTile);
     }
 
     @Test
     public void getWidthFromGrid() {
-        assertEquals(4, grid.getWidth());
+        assertEquals(7, grid.getWidth());
     }
 
     @Test
     public void getWidthFromGrid2() {
-        assertEquals(8, grid2.getWidth());
+        assertEquals(5, grid2.getWidth());
     }
 
     @Test
     public void getHeightFromGrid() {
-        assertEquals(7,grid.getHeight());
+        assertEquals(4, grid.getHeight());
     }
 
     @Test
     public void getHeightFromGrid2() {
-        assertEquals(5,grid2.getHeight());
+        assertEquals(8, grid2.getHeight());
     }
 
     @Test
     public void getElementFromGrid2() {
-        assertEquals(TileType.TILE, grid2.getElement(5,3));
+        assertEquals(defaultTile, grid2.getElement(3,5));
     }
 
     @Test
     public void setElementInGrid2() {
-        grid2.setElement(2,1, TileType.HOLE);
-        assertEquals(TileType.HOLE, grid2.getElement(2,1));
+        Tile hole = new Tile(TileType.HOLE, Direction.NORTH);
+        grid2.setElement(2,1, hole);
+        assertEquals(hole, grid2.getElement(2,1));
+    }
+
+    @Test (expected = IllegalArgumentException.class)
+    public void invalidPositionThrowsErrorOnGet() {
+        grid.getElement(7, 4);
+    }
+
+    @Test (expected = IllegalArgumentException.class)
+    public void invalidPositionThrowsErrorOnSet() {
+        grid2.setElement(5, 8, null);
     }
 }