数组的 Jasmine 测试一直失败

Question

我正在尝试编写 jasmine 测试来检查数据是否输入到数组中。我有视图模型、单元 (jasmine) 测试文件和用于设置单元测试信息的阶段文件。我得到的错误是说我的数组未定义。错误消息显示 "Expected undefined to be {SiteId: 0, FirstName: 'Jon', LastName: 'Walker', ObjectState: 1}"

这是我的视图模型。我正在尝试测试 self.addPatient:

var EF = (function () {
    return {
        ObjectState: {
            Unchanged: 0,
            Added: 1,
            Modified: 2,
            Deleted: 3
        }
    };
})();

var patientMapping = {
    'Patients': {
        key: function (patient) {
            return ko.utils.unwrapObservable(patient.PatientId);
        },
        create: function (options) {
            return new PatientViewModel(options.data);
        }
    }
};

PatientViewModel = function (data) {
    var self = this;
    ko.mapping.fromJS(data, {}, self);

    self.flagPatientAsEdited = function () {
        if (self.ObjectState() != ObjectState.Added) {
            self.ObjectState(ObjectState.Modified);
        }
        return true;
    },
    self.FullName = ko.computed(function () {
        return (self.FirstName() + " " + self.LastName());
    });
}

SiteViewModel = function (data) {
    var self = this;
    ko.mapping.fromJS(data, patientMapping, self);

    self.save = function () {
        $.ajax({
            url: "/Site/Save/",
            type: "POST",
            data: ko.toJSON(self),
            contentType: "application/json",
            success: function (data) {
                if (data.siteViewModel != null) {
                    alert("Changes were saved successfully.");
                    ko.mapping.fromJS(data.siteViewModel, {}, self);
                }
                if (data.newLocation != null) {
                    window.location = data.newLocation;
                }
            }
        });
    },

    self.flagSiteAsEdited = function () {
        if (self.ObjectState() != ObjectState.Added) {
            self.ObjectState(ObjectState.Modified);
        }
        return true;
    },

    self.addPatient = function () {
        var patient = new PatientViewModel({ SiteId: 0, FirstName: "", LastName: "", ObjectState: ObjectState.Added });
        self.Patients.push(patient);
    },

    self.deletePatient = function (patient) {
        self.Patients.remove(this);

        if (patient.PatientId() > 0 && self.PatientsToDelete.indexOf(patient.PatientId()) == -1) {
            self.PatientsToDelete.push(patient.PatientId());
        }
    };
}

这是我的阶段文件，用于为 jasmine 测试初始化信息：

//staged data for view model testing

var OBP = OBP || {};

OBP.Testing = (function () {

    var reset = function () {

        var isReadOnly = true;

        window.isReadOnly = true;
        window.ObjectState = 2;
        window.FirstName = "Joe";
        window.LastName = "Mitchell";
        window.SiteId = 5;
        window.patient = { "SiteId": 0, "FirstName": "Jon", "LastName": "Walker", "ObjectState": 1 };
        window.patientDelete = { "PatientId": 1, "SiteId": 0, "FirstName": "Frank", "LastName": "Smith", "ObjectState": 1 };
    };

    return {
        reset: reset
    };
})();

OBP.Testing.reset();

这是我的茉莉花测试本身失败了：

/// <reference path="../../lib/jasmine.js"/>
/// <reference path="../../lib/mock-ajax.js" />
/// <reference path="../../jquery-2.1.3.min.js" />
/// <reference path="../../lib/jasmin-jquery.js" />
/// <reference path="../../bootstrap.js" />
/// <reference path="../../knockout-3.2.0.js" />
/// <reference path="../../knockout.mapping-latest.js" />
/// <reference path="SiteViewModelStage.js" />
/// <reference path="../../siteviewmodel.js" />

describe("Add patient check:", function () {
    beforeEach(function () {
        OBP.Testing.reset()
    });

    var Patients = new Array();
    var viewModel = new SiteViewModel({ patient: window.patient });

    it("Add patient works", function () {
        expect(Patients[0]).toBe(patient);
    });
});

如果能帮助调试我的茉莉花测试，我们将不胜感激。

Answer 1

我在 viewModel 中创建了 Patients 和 observable 数组：

self.Patients = ko.observableArray();

在 viewModel 中编辑了 addPatient：

self.addPatient = function (patient) {
    self.Patients.push(patient);
},

并修改了 "Add patient check" 单元测试：

describe("Add patient check:", function () {
    beforeEach(function () {
        OBP.Testing.reset()
    });

    var viewModel = new SiteViewModel({ patient: window.patient });
    viewModel.addPatient(new PatientViewModel({ PatientId: 1, SiteId: 0, FirstName: "", LastName: "", ObjectState: ObjectState.Added }));

    it("Add patient works", function () {
        expect(viewModel.Patients().length == 1).toBe(true);
    });
});

对视图模型和单元测试的这些更改解决了我的问题。从这里我还可以检查患者的姓名并进行其他测试以进行验证。 Xv 在评论中的解释帮助我找到了这个解决方案

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