public function test_rgb_to_hsv()
{
$white = array('h' => 0, 's' => 0, 'v' => 1);
$black = array('h' => 0, 's' => 0, 'v' => 0);
$red = array('h' => 0, 's' => 1, 'v' => 1);
$green = array('h' => 0.33, 's' => 1, 'v' => 1);
$blue = array('h' => 0.67, 's' => 1, 'v' => 1);
$this->assertEquals($white, Kirki_Color::rgb_to_hsv(array(255, 255, 255)));
$this->assertEquals($black, Kirki_Color::rgb_to_hsv(array(0, 0, 0)));
$this->assertEquals($red, Kirki_Color::rgb_to_hsv(array(255, 0, 0)));
$this->assertEquals($green, Kirki_Color::rgb_to_hsv(array(0, 255, 0)));
$this->assertEquals($blue, Kirki_Color::rgb_to_hsv(array(0, 0, 255)));
}