Fix background warnings return type error in unit tests
@@ -18,7 +18,7 @@ const MAX_IMAGE_HEIGHT = 2040;
const MAX_PIXELS = 16380 * 64;
const MAX_TILESET_TILES = 16 * 12;
-export const getBackgroundWarnings = async (background: IBackground, projectPath: string, precalculatedTilesetLength?: number): string[] => {
+export const getBackgroundWarnings = async (background: IBackground, projectPath: string, precalculatedTilesetLength?: number): Promise<string[]> => {
const errors: string[] = [];
let tilesetLength = precalculatedTilesetLength;
