小编典典

Sinon FakeServer没要求?

reactjs

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?

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?


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2020-07-22

共1个答案

小编典典

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);
});
2020-07-22