ComfyUI_frontend/tests-ui/globalSetup.ts

module.exports = async function () {
  global.ResizeObserver = class ResizeObserver {
    observe() {}
    unobserve() {}
    disconnect() {}
  };

  const { nop } = require("./utils/nopProxy");
  global.enableWebGLCanvas = nop;

  HTMLCanvasElement.prototype.getContext = nop;

  localStorage["Comfy.Settings.Comfy.Logging.Enabled"] = "false";
};