openmct/platform/features/plot/test/services/ExportImageServiceSpec.js

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 * Administration. All rights reserved.
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/**
 * ExportImageServiceSpec. Created by hudsonfoo on 09/03/16.
 */
define(
    ["../../src/services/ExportImageService"],
    function (ExportImageService) {
        var mockQ,
            mockDeferred,
            mockPromise,
            mockTimeout,
            mockLog,
            mockHtml2Canvas,
            mockJsPDF,
            mockJsPDFSave,
            mockSaveAs,
            mockExportTimeoutConstant,
            exportImageService;

        describe("ExportImageService", function () {
            beforeEach(function () {
                mockDeferred = jasmine.createSpyObj(
                    "deferred",
                    ["reject", "resolve"]
                );
                mockPromise = jasmine.createSpyObj(
                    "promise",
                    ["then", "finally"]
                );
                mockPromise.then = function (callback) {
                    callback();
                };
                mockQ = {
                    "defer": function () {
                        return {
                            "resolve": mockDeferred.resolve,
                            "reject": mockDeferred.reject,
                            "promise": mockPromise
                        };
                    }
                };
                mockTimeout = function (fn, time) {
                    return {
                        "cancel": function () {}
                    };
                };
                mockLog = jasmine.createSpyObj(
                    "$log",
                    ["warn"]
                );
                mockHtml2Canvas = jasmine.createSpy("html2canvas");
                mockJsPDFSave = jasmine.createSpy("jsPDFSave");
                mockJsPDF = function () {
                    return {
                        "addImage": function () {},
                        "save": mockJsPDFSave
                    };
                };
                mockSaveAs = jasmine.createSpy("saveAs");
                mockExportTimeoutConstant = 0;

                exportImageService = new ExportImageService(
                    mockQ,
                    mockTimeout,
                    mockLog,
                    mockExportTimeoutConstant,
                    mockHtml2Canvas,
                    mockJsPDF,
                    mockSaveAs
                );
            });

            it("runs html2canvas and tries to save a pdf", function () {
                exportImageService.exportPDF("", "plot.pdf");

                expect(mockHtml2Canvas).toHaveBeenCalled();
                expect(mockDeferred.reject).not.toHaveBeenCalled();
                expect(mockJsPDFSave).toHaveBeenCalled();
                expect(mockPromise.finally).toHaveBeenCalled();
            });

            it("runs html2canvas and tries to save a png", function () {
                exportImageService.exportPNG("", "plot.png");

                expect(mockHtml2Canvas).toHaveBeenCalled();
                expect(mockDeferred.reject).not.toHaveBeenCalled();
                expect(mockSaveAs).toHaveBeenCalled();
                expect(mockPromise.finally).toHaveBeenCalled();
            });

            it("runs html2canvas and tries to save a jpg", function () {
                exportImageService.exportJPG("", "plot.png");

                expect(mockHtml2Canvas).toHaveBeenCalled();
                expect(mockDeferred.reject).not.toHaveBeenCalled();
                expect(mockSaveAs).toHaveBeenCalled();
                expect(mockPromise.finally).toHaveBeenCalled();
            });
        });
    }
);