gecko-dev/dom/power/test/test_power_set_screen_brigh...

77 строки
2.1 KiB
HTML

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test Setting Screen Brightness with Power Management API</title>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
<script type="application/javascript">
"use strict";
// Test setting brightness to a value < 0
function testInvalidBrightness1() {
try {
navigator.mozPower.screenBrightness = -1;
} catch (e) {
return ok(true, "Invalid brightness level results in exception.");
}
ok(false, "Exeception not thrown for invalid brightness level.");
}
// Test setting brightness to a value > 1
function testInvalidBrightness2() {
try {
navigator.mozPower.screenBrightness = 2;
} catch (e) {
return ok(true, "Invalid brightness level results in exception.");
}
ok(false, "Exeception not thrown for invalid brightness level.");
}
function testSettingBrightness() {
var newBright = 0.312;
navigator.mozPower.screenBrightness = newBright;
ok(fuzzyEq(newBright, navigator.mozPower.screenBrightness),
"Set new brightness value.");
}
function startTests() {
testInvalidBrightness1();
testInvalidBrightness2();
testSettingBrightness();
SimpleTest.finish();
}
function fuzzyEq(a, b) {
var epsilon = 0.002;
return Math.abs(a - b) < epsilon;
}
SimpleTest.expectAssertions(0, 9);
SimpleTest.waitForExplicitFinish();
if (SpecialPowers.hasPermission("power", document)) {
// Currently only applicable on FxOS
if (navigator.userAgent.indexOf("Mobile") != -1 &&
navigator.appVersion.indexOf("Android") == -1) {
startTests();
} else {
ok(true, "mozPower on Firefox OS only.");
SimpleTest.finish();
}
} else {
// Add the permission and reload so it's propogated
SpecialPowers.addPermission("power", true, document);
window.location.reload();
}
</script>
</pre>
</body>
</html>