public function testSome()
{
$set = new Set();
$set->add('hello', 'world', 100, function () {
}, array(3, 2, 1));
$this->assertTrue($set->some(function ($item) {
return \is_callable($item);
}));
$this->assertFalse($set->some(function ($item) {
return \is_resource($item);
}));
}
