<!DOCTYPE html>
<html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var previousOrientation = screen.orientation;
test(function() {
screen.orientation.unlock();
}, "Test that screen.orientation.unlock() doesn't throw when there is no lock");
async_test(function(t) {
var orientations = ['any', 'portrait', 'landscape', 'portrait-secondary',
'landscape-primary', 'landscape-secondary', 'portrait-primary'];
setOrientation = function(idx) {
if( idx == orientations.length) {
screen.orientation.unlock();
t.done();
return;
}
(function(i) {
screen.orientation.lock(orientations[i]).then(function() {
setOrientation(i+1);
},function() {});
})(idx);
};
setOrientation(0);
}, "Test that screen.orientation.lock returns a pending promise.");
test(function() {
assert_equals(screen.orientation, previousOrientation);
}, "Test that screen.orientation.lock() is actually async");
</script>
</body>
</html>