openmct/platform/forms/test/FileInputServiceSpec.js

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 * Open MCT, Copyright (c) 2014-2017, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is licensed under the Apache License, Version 2.0 (the
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 * License for the specific language governing permissions and limitations
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define(
    ["../src/FileInputService"],
    function (FileInputService) {

        describe("The FileInputService", function () {
            var fileInputService,
                mockInput;

            beforeEach(function () {
                fileInputService = new FileInputService();
                mockInput = jasmine.createSpyObj('input',
                    [
                        'on',
                        'trigger',
                        'remove'
                    ]
                );
                mockInput.on.andCallFake(function (event, changeHandler) {
                    changeHandler.apply(mockInput);
                });
                spyOn(fileInputService, "newInput").andReturn(
                    mockInput
                );

            });

            it("can read a file", function () {
                mockInput.files = [new File(["file content"], "file name")];
                fileInputService.getInput().then(function (result) {
                    expect(result.name).toBe("file name");
                    expect(result.body).toBe("file content");
                });

                expect(mockInput.trigger).toHaveBeenCalledWith('click');
                expect(mockInput.remove).toHaveBeenCalled();
            });

            it("catches file read errors", function () {
                mockInput.files = ["GARBAGE"];
                fileInputService.getInput().then(
                    function (result) {},
                    function (err) {
                        expect(err).toBe("File read error");
                    }
                );

                expect(mockInput.trigger).toHaveBeenCalledWith('click');
                expect(mockInput.remove).toHaveBeenCalled();
            });
        });
    }
);