public function testSentinelSearch()
{
$count = \count($this->_Nums);
$this->assertEquals(0, $this->_Nums->sentinelSearch(378466));
$this->assertEquals(6, $this->_Nums->sentinelSearch(0.1));
$this->assertEquals(ArrayList::NO_INDEX, $this->_Nums->sentinelSearch(1000));
$this->assertCount($count, $this->_Nums);
}