Updated tests for new bound vs bounds function.

src/css/layout/__mocks__/bounds.ts

@@ -2,3 +2,7 @@ export const {Bounds} = jest.requireActual('../bounds');
 export const parseBounds = (): typeof Bounds[] => {
     return [new Bounds(0, 0, 200, 50)];
 };
+
+export const parseBound = (): typeof Bounds => {
+    return new Bounds(0, 0, 200, 50);
+};

src/render/canvas/canvas-renderer.ts

@@ -617,11 +617,13 @@ export class CanvasRenderer extends Renderer {
                     ]);
                     areas.forEach((area) => {
                         const [path, x, y, width, height] = area;
+                        if (image) {
                             const pattern = this.ctx.createPattern(
-                            this.resizeImage(image!, width, height),
+                                this.resizeImage(image, width, height),
                                 'repeat'
                             ) as CanvasPattern;
                             this.renderRepeat(path, pattern, x, y);
+                        }
                     });
                 }
             } else if (isLinearGradient(backgroundImage)) {