test/integration/client/webworks.tablet/systemEvent.js

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 *
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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xdescribe("webworks.tablet system event", function () {
    var systemEvent = ripple('platform/webworks.tablet/2.0.0/client/systemEvent'),
        spec = ripple('platform/webworks.tablet/2.0.0/spec'),
        ww_XMLHttpRequest = ripple('platform/webworks.core/2.0.0/XMLHttpRequest'),
        helpers = ripple('xhr/helpers'),
        xhr = ripple('xhr'),
        platform = ripple('platform'),
        console = ripple('console'),
        event = ripple('event'),
        _oldXHR;

    function _run(delay, methods) {
        methods.forEach(function (method) {
            waits(delay);
            runs(method);
        });
    }

    // TODO: erroneous status codes and polling failures

    // mock everything outside of the (client -> XMLHttpRequest -> server) components being tested
    beforeEach(function () {
        _oldXHR = window.XMLHttpRequest;
        xhr.initialize();
        global.XMLHttpRequest = window.XMLHttpRequest = ww_XMLHttpRequest
            .create(ripple + 'client/platform/webworks.tablet/2.0.0/server');

        spyOn(platform, "current").andReturn(spec);
        spyOn(console, "log");
        spyOn(helpers, "proxyEnabled").andReturn(false);
    });

    describe("deviceBatteryStateChange", function () {
        it("de-registers onBatterStateChange", function () {
            var listener = jasmine.createSpy();
            systemEvent.deviceBatteryStateChange(listener);

            _run(20, [
                function () {
                    systemEvent.deviceBatteryStateChange(null);
                },
                function () {
                    event.trigger("DeviceBatteryStateChanged", [false]);
                },
                function () {
                    expect(listener).not.toHaveBeenCalled();
                    global.XMLHttpRequest = window.XMLHttpRequest = _oldXHR;
                }
            ]);
        });

        it("registers and invokes onBatteryStateChange", function () {
            var listener = jasmine.createSpy();
            systemEvent.deviceBatteryStateChange(listener);

            _run(20, [
                function () {
                    event.trigger("DeviceBatteryStateChanged", [false]);
                },
                function () {
                    expect(listener).toHaveBeenCalledWith(3); // UNPLUGGED
                    global.XMLHttpRequest = window.XMLHttpRequest = _oldXHR;
                }
            ]);
        });

    });

    describe("deviceBatteryLevelChange", function () {
        it("registers and invokes onBatterLevelChange", function () {
            var listener = jasmine.createSpy();
            systemEvent.deviceBatteryLevelChange(listener);

            _run(20, [
                function () {
                    event.trigger("DeviceBatteryLevelChanged", [80]);
                },
                function () {
                    expect(listener).toHaveBeenCalledWith(80);
                    global.XMLHttpRequest = window.XMLHttpRequest = _oldXHR;
                }
            ]);
        });

        it("can deregister onBatterLevelChange", function () {
            var listener = jasmine.createSpy();
            systemEvent.deviceBatteryLevelChange(listener);

            _run(20, [
                function () {
                    systemEvent.deviceBatteryLevelChange(null);
                },
                function () {
                    event.trigger("DeviceBatteryLevelChanged", [70]);
                },
                function () {
                    expect(listener).not.toHaveBeenCalled();
                    global.XMLHttpRequest = window.XMLHttpRequest = _oldXHR;
                }
            ]);
        });
    });
});