test out-of-bounds pixels

src/image.rs

@@ -93,4 +93,28 @@ mod test {
 
         assert_eq!(output, expected);
     }
+
+    /// lots of Bitsy games have editor errors where pixels can be placed out of bounds
+    /// check that these extraneous pixels are stripped out
+    #[test]
+    fn test_image_out_of_bounds() {
+        let output = Image::from(
+            include_str!("test-resources/image-oob").to_string()
+        );
+        
+        let expected = Image {
+            pixels: vec![
+                1,1,1,1,1,1,1,1,
+                1,1,0,0,1,1,1,1,
+                1,0,1,1,1,1,1,1,
+                1,1,1,1,1,1,1,1,
+                1,1,1,1,1,1,1,1,
+                1,1,1,1,1,1,1,1,
+                1,1,1,1,1,1,1,1,
+                0,0,0,0,0,0,0,0,
+            ]
+        };
+        
+        assert_eq!(output, expected);
+    }
 }