我正在遵循SinonJS Fake Server教程,并且正在运行以下简单代码:
var server; before(function () { server = sinon.fakeServer.create(); }); after(function () { server.restore(); }); it("calls callback with deserialized data", function () { var callback = sinon.spy(); getTodos(42, callback); // This is part of the FakeXMLHttpRequest API server.requests[0].respond( 200, { "Content-Type": "application/json" }, JSON.stringify([{ id: 1, text: "Provide examples", done: true }]) ); assert(callback.calledOnce); });
我将getTodos函数包含在同一文件中。这里也是:
function getTodos(listId, callback) { $.ajax({ url: "/todo/" + listId + "/items", success: function (data) { // Node-style CPS: callback(err, data) callback(null, data); } }); }
但是,我遇到了错误TypeError: Cannot read property 'respond' of undefined。看起来server.requests是空的-这为什么呢?如何确保请求显示出来?
TypeError: Cannot read property 'respond' of undefined
server.requests
更新 :我能够缩小问题的范围。我在getTodos函数中添加了一个“错误”回调,并在console.log中找到了该错误。事实证明,尝试执行jsdom节点模块时出现语法错误,urlObj = new URL(uri, documentBaseURLSerialized(this._ownerDocument));这随后导致$.ajax({失败。有人对此有任何想法吗?
urlObj = new URL(uri, documentBaseURLSerialized(this._ownerDocument));
$.ajax({
我能想到的一个问题是您没有在您的JSm实例中加载Sinon。这是在这里工作的测试文件:
var jsdom = require("jsdom"); var assert = require("assert"); var vc = jsdom.createVirtualConsole(); vc.on("log", console.log.bind(console.log)); vc.on("jsdomError", function jsdomError(er) { throw er; }); var window; var $; var sinon; before(function (done) { jsdom.env({ html: "", scripts: ["node_modules/jquery/dist/jquery.js", "node_modules/sinon/pkg/sinon.js"], features: { ProcessExternalResources: ["script"], FetchExternalResources: ["script", "link"], }, virtualConsole: vc, done: function _done(error, w) { if (error) { throw error; } window = w; $ = w.$; sinon = w.sinon; done(); }, }); }); function getTodos(listId, callback) { $.ajax({ url: "/todo/" + listId + "/items", success: function (data) { // Node-style CPS: callback(err, data) callback(null, data); } }); } var server; before(function () { server = sinon.fakeServer.create(); }); after(function () { server.restore(); }); it("calls callback with deserialized data", function () { var callback = sinon.spy(); getTodos(42, callback); // This is part of the FakeXMLHttpRequest API server.requests[0].respond( 200, { "Content-Type": "application/json" }, JSON.stringify([{ id: 1, text: "Provide examples", done: true }]) ); assert(callback.calledOnce); });