public function test_keywords()
{
$this->assertEquals($this->seo->getKeywords(), "");
$this->seo->setKeywords(['hello', 'world', 'pyncil', 'seo']);
$this->assertEquals($this->seo->getKeywords(), "<meta name=\"keywords\" content=\"hello, world, pyncil, seo\">");
$this->seo->setKeywords('dog, cat, fish, pig');
$this->assertEquals($this->seo->getKeywords(), "<meta name=\"keywords\" content=\"dog, cat, fish, pig\">");
$this->seo->addKeyword('potato')->addKeyword('test')->addKeyword('new')->addKeyword('kid');
$this->assertEquals($this->seo->getKeywords(), "<meta name=\"keywords\" content=\"dog, cat, fish, pig, potato, test, new, kid\">");
$this->seo->setKeywords(['hello', 'world', 'pyncil', 'seo']);
$this->assertEquals($this->seo->getKeywords(), "<meta name=\"keywords\" content=\"hello, world, pyncil, seo\">");
$this->seo->addKeywords(['potato', 'test'])->addKeywords('new, kid');
$this->assertEquals($this->seo->getKeywords(), "<meta name=\"keywords\" content=\"hello, world, pyncil, seo, potato, test, new, kid\">");
}
