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javascript - 如何修复错误：未实现：导航（哈希更改除外）

问题描述

我正在为包含的文件实施单元测试，window.location.href我需要检查它。

我的笑话版本是22.0.4. 当我在节点版本 >=10 上运行测试时，一切都很好

但是当我运行它时出现此错误v8.9.3

console.error node_modules/jsdom/lib/jsdom/virtual-console.js:29
      Error: Not implemented: navigation (except hash changes)

我对此一无所知。我在许多页面上进行了搜索，以找出解决方案或任何有关此问题的提示，以弄清楚这里发生了什么。

[更新] - 我深入查看了源代码，我认为这个错误来自 jsdom。

at module.exports (webapp/node_modules/jsdom/lib/jsdom/browser/not-implemented.js:9:17)
at navigateFetch (webapp/node_modules/jsdom/lib/jsdom/living/window/navigation.js:74:3)

导航.js 文件

exports.evaluateJavaScriptURL = (window, urlRecord) => {
  const urlString = whatwgURL.serializeURL(urlRecord);
  const scriptSource = whatwgURL.percentDecode(Buffer.from(urlString)).toString();
  if (window._runScripts === "dangerously") {
    try {
      return window.eval(scriptSource);
    } catch (e) {
      reportException(window, e, urlString);
    }
  }
  return undefined;
};
exports.navigate = (window, newURL, flags) => {
  // This is NOT a spec-compliant implementation of navigation in any way. It implements a few selective steps that
  // are nice for jsdom users, regarding hash changes and JavaScript URLs. Full navigation support is being worked on
  // and will likely require some additional hooks to be implemented.

  const document = idlUtils.implForWrapper(window._document);
  const currentURL = document._URL;

  if (!flags.reloadTriggered && urlEquals(currentURL, newURL, { excludeFragments: true })) {
    if (newURL.fragment !== currentURL.fragment) {
      navigateToFragment(window, newURL, flags);
    }
    return;
  }

  // NOT IMPLEMENTED: Prompt to unload the active document of browsingContext.

  // NOT IMPLEMENTED: form submission algorithm
  // const navigationType = 'other';

  // NOT IMPLEMENTED: if resource is a response...
  if (newURL.scheme === "javascript") {
    window.setTimeout(() => {
      const result = exports.evaluateJavaScriptURL(window, newURL);
      if (typeof result === "string") {
        notImplemented("string results from 'javascript:' URLs", window);
      }
    }, 0);
    return;
  }
  navigateFetch(window);
};

未实现的.js

module.exports = function (nameForErrorMessage, window) {
  if (!window) {
    // Do nothing for window-less documents.
    return;
  }

  const error = new Error(`Not implemented: ${nameForErrorMessage}`);
  error.type = "not implemented";

  window._virtualConsole.emit("jsdomError", error);
};

我在这些文件中看到了一些奇怪的逻辑。

  1. const scriptSource = whatwgURL.percentDecode(Buffer.from(urlString)).toString();
  2. 然后检查字符串并返回错误

标签： javascriptunit-testingvuejs2jestjs

解决方案

仅适用于我的替代版本jest：

let assignMock = jest.fn();

delete window.location;
window.location = { assign: assignMock };

afterEach(() => {
  assignMock.mockClear();
});

参考： https ://remarkablemark.org/blog/2018/11/17/mock-window-location/

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