public function testIsObject()
{
// from js
$this->assertTrue(__u::isObject((object) array(1, 2, 3)));
$this->assertTrue(__u::isObject(function () {
}), 'and functions');
$this->assertFalse(__u::isObject(null), 'but not null');
$this->assertFalse(__u::isObject('string'), 'and not string');
$this->assertFalse(__u::isObject(12), 'and not number');
$this->assertFalse(__u::isObject(true), 'and not boolean');
if (class_exists('DateTimeZone')) {
$this->assertTrue(__u::isObject(new DateTimeZone('America/Denver')), 'objects are');
}
// extra
$this->assertTrue(__u::isObject(new StdClass()), 'empty objects work');
$this->assertTrue(__u(new StdClass())->isObject(), 'works with OO-style call');
$this->assertFalse(__u(2)->isObject());
}