LayoutTests/batterystatus/script-tests/updates.js

description('Tests that updates to the battery event causes new events to fire.');

var charging = false;
var chargingTime = Number.POSITIVE_INFINITY;
var dischargingTime = 6000;
var level = 0.7;

var battery = navigator.webkitBattery;

function checkBatteryStatus() {
    shouldBe("battery.charging", "false");
    shouldBe("battery.chargingTime", "Infinity");
    shouldBe("battery.dischargingTime", "6000");
    shouldBe("battery.level", "0.7");
}

function setBatteryStatus() {
    internals.setBatteryStatus('chargingchange', charging, chargingTime, dischargingTime, level);
}

function firstListener() {
    checkBatteryStatus();
    battery.removeEventListener('chargingchange', firstListener);
    battery.addEventListener('chargingchange', updateListener);
    charging = true;
    chargingTime = 7000;
    dischargingTime = Number.POSITIVE_INFINITY;
    level = 0.3;
	setBatteryStatus();
}

function updateListener(event) {
    shouldBe("battery.charging", "true");
    shouldBe("battery.chargingTime", "7000");
    shouldBe("battery.dischargingTime", "Infinity");
    shouldBe("battery.level", "0.3");
    finishJSTest();
}

battery.addEventListener('chargingchange', firstListener);
setBatteryStatus();
window.jsTestIsAsync = true;