Pass window in to fix tests

src/browser/services/MouseService.ts

@@ -17,6 +17,7 @@ export class MouseService implements IMouseService {
 
   public getCoords(event: {clientX: number, clientY: number}, element: HTMLElement, colCount: number, rowCount: number, isSelection?: boolean): [number, number] | undefined {
     return getCoords(
+      window,
       event,
       element,
       colCount,

src/browser/services/SelectionService.ts

@@ -402,7 +402,7 @@ export class SelectionService extends Disposable implements ISelectionService {
    * @param event The mouse event.
    */
   private _getMouseEventScrollAmount(event: MouseEvent): number {
-    let offset = getCoordsRelativeToElement(event, this._screenElement)[1];
+    let offset = getCoordsRelativeToElement(window, event, this._screenElement)[1];
     const terminalHeight = this._renderService.dimensions.canvasHeight;
     if (offset >= 0 && offset <= terminalHeight) {
       return 0;