public function testGetHisto()
{
$method = new \ReflectionMethod('\\ColorThief\\ColorThief', 'getHisto');
$method->setAccessible(true);
// [[229, 210, 51], [133, 24, 135], [216, 235, 108], [132, 25, 134], [223, 46, 29],
// [135, 28, 132], [233, 133, 213], [225, 212, 48]]
$pixels = array(15061555, 8722567, 14216044, 8657286, 14626333, 8854660, 15304149, 14799920);
$expectedHisto = array(29510 => 2, 16496 => 3, 28589 => 1, 27811 => 1, 30234 => 1);
$this->assertSame($expectedHisto, $method->invoke(null, $pixels));
}