public function testChts()
{
$this->assertEquals($this->chart->hasChts(), false);
$this->assertEquals($this->chart->computeChts(), '000000,12');
// setTitleColor()
$this->chart->setTitleColor('00ff00');
$this->assertEquals($this->chart->computeChts(), '00ff00,12');
// setTitleSize()
$this->chart->setTitleSize('20');
$this->assertEquals($this->chart->computeChts(), '00ff00,20');
// chts is null if no title
$q = $this->chart->getQuery();
$this->assertEquals(isset($q['chts']), false);
// title make chts appears
$this->chart->setTitle('foobar');
$q = $this->chart->getQuery();
$this->assertEquals(isset($q['chts']), true);
$this->assertEquals($q['chts'], '00ff00,20');
}
