gecko-dev/dom/tests/mochitest/general/test_vibrator.html

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<!DOCTYPE HTML>
<html>
<head>
<title>Test for Vibrator</title>
<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<!-- Although we can't test that the vibrator works properly, we can test that
navigator.vibrate throws an exception where appropriate. -->
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
var result;
function expectFailure(param) {
result = navigator.vibrate(param);
is(result, false, 'vibrate(' + param + ') should have failed.');
}
function expectSuccess(param) {
result = navigator.vibrate(param);
is(result, true, 'vibrate(' + param + ') must succeed.');
}
function tests(aEnabled) {
// Some edge cases that the bindings should handle for us.
expectSuccess(null);
expectSuccess(undefined);
// -1 will be converted to the highest unsigned long then clamped.
expectSuccess(-1);
expectSuccess('a');
// -1 will be converted to the highest unsigned long then clamped.
expectSuccess([100, -1]);
expectSuccess([100, 'a']);
var maxVibrateMs = SpecialPowers.getIntPref('dom.vibrator.max_vibrate_ms');
var maxVibrateListLen = SpecialPowers.getIntPref('dom.vibrator.max_vibrate_list_len');
// If we pass a vibration pattern with a value higher than max_vibrate_ms or a
// pattern longer than max_vibrate_list_len, the call should succeed but the
// pattern should be modified to match the restrictions.
// Values will be clamped to dom.vibrator.max_vibrate_ms.
expectSuccess(maxVibrateMs + 1);
expectSuccess([maxVibrateMs + 1]);
var arr = [];
for (var i = 0; i < maxVibrateListLen + 1; i++) {
arr[i] = 0;
}
// The array will be truncated to have a length equal to dom.vibrator.max_vibrate_list_len.
expectSuccess(arr);
expectSuccess(0);
expectSuccess([]);
expectSuccess('1000');
expectSuccess(1000);
expectSuccess(1000.1);
expectSuccess([0, 0, 0]);
expectSuccess(['1000', 1000]);
expectSuccess([1000, 1000]);
expectSuccess([1000, 1000.1]);
// The following loop shouldn't cause us to crash. See bug 701716.
for (var i = 0; i < 10000; i++) {
navigator.vibrate([100, 100]);
}
ok(true, "Didn't crash after issuing a lot of vibrate() calls.");
if(!aEnabled)
SimpleTest.finish();
}
SpecialPowers.pushPermissions([
{type: 'vibration', allow: true, context: document}
], function() {
// Test with the vibrator pref enabled.
SpecialPowers.pushPrefEnv({"set": [['dom.vibrator.enabled', true]]}, function() {
tests(true);
SpecialPowers.pushPrefEnv({"set": [['dom.vibrator.enabled', false]]}, tests(false));
});
// Everything should be the same when the vibrator is disabled -- in
// particular, a disabled vibrator shouldn't eat failures we'd otherwise
// observe.
}
);
</script>
</body>
</html>