public function testSecureShuffle()
{
$array = [];
for ($i = 0; $i < 512; ++$i) {
$array[] = random_int(PHP_INT_MIN, PHP_INT_MAX);
}
$copy = \array_values($array);
\Airship\secure_shuffle($copy);
$this->assertNotSame($copy, $array, 'Shuffled array should not be identical to original.');
$this->assertCount(512, $copy, 'Shuffled array is not the correct size.');
}