public function testGenerateArticle()
{
$h = new HTML();
$article = $h->article('id="paris" class="city"');
$div = $article->div('class="row"');
$h1 = $div->h1('Paris');
$h2 = $div->h2('France');
$h3 = $div->h3('Capital');
$p = $div->p();
$p->text('1');
$p->br();
$p->text('paragraph.');
$p2 = $div->p('2 paragraph.');
$div->p('3 paragraph.');
$h4 = $div->h4('More information');
$div->p('4 paragraph.');
$p3 = $div->p('5 paragraph.');
$p4 = $div->p('6 paragraph.');
$result = '<article id="paris" class="city">';
$result .= '<div class="row">';
$result .= '<h1>Paris</h1>';
$result .= '<h2>France</h2>';
$result .= '<h3>Capital</h3>';
$result .= '<p>1<br>paragraph.</p>';
$result .= '<p>2 paragraph.</p>';
$result .= '<p>3 paragraph.</p>';
$result .= '<h4>More information</h4>';
$result .= '<p>4 paragraph.</p>';
$result .= '<p>5 paragraph.</p>';
$result .= '<p>6 paragraph.</p>';
$result .= '</div>';
$result .= '</article>';
$this->assertSame('<h4>More information</h4>', $h4->__toString());
$this->assertInstanceOf('RocketPHP\\HTML\\Element', $p4);
$this->assertSame('<p>6 paragraph.</p>', $p4->__toString());
$this->assertSame($result, $h->__toString());
}