Function testHarness

packages/vue/test/errorHandler.test.ts:252–346

({
  silent,
  attachProps,
  enableWarnHandler,
  enableErrorHandler,
  enableConsole,
  vm,
  optionsUndefined = false,
}: TestHarnessOpts)

}

const testHarness = ({
  silent,
  attachProps,
  enableWarnHandler,
  enableErrorHandler,
  enableConsole,
  vm,
  optionsUndefined = false,
}: TestHarnessOpts) => {
  vi.useFakeTimers();
  const providedErrorHandlerSpy = vi.fn();
  const warnHandlerSpy = vi.fn();
  const consoleErrorSpy = vi.fn();

  const client: any = {
    captureException: vi.fn(async () => Promise.resolve()),
  };
  setCurrentClient(client);

  const app: Vue = {
    config: {
      silent: !!silent,
    },
    mixin: vi.fn(),
  };

  if (enableErrorHandler) {
    app.config.errorHandler = providedErrorHandlerSpy;
  }

  if (enableWarnHandler) {
    app.config.warnHandler = warnHandlerSpy;
  }

  /* eslint-disable no-global-assign */
  if (enableConsole) {
    // I need to re-assign the whole console
    // because at some point it can be set to undefined
    // @ts-expect-error for the sake of testing
    console = { error: consoleErrorSpy };
  } else {
    // @ts-expect-error for the sake of testing
    console = undefined;
  }
  /* eslint-enable no-global-assign */

  const options: Options | undefined = optionsUndefined
    ? undefined
    : {
        attachProps: !!attachProps,
        tracingOptions: {},
        trackComponents: [],
        timeout: 0,
        hooks: [] as Operation[],
      };

  return {
    run: () => {