public function testAppendContent() { $tag = new Collapse('foo', null, 'bar'); $tag->appendContent('baz'); $this->assertEquals('<fieldset class="collapse-wrapper">' . '<legend' . ' data-opened-indicator="<i class="glyphicon glyphicon-chevron-down"></i>"' . ' data-closed-indicator="<i class="glyphicon glyphicon-chevron-right"></i>"' . '>' . '<a data-toggle="collapse" href="#foo">' . '<i class="glyphicon glyphicon-chevron-right"></i> ' . '</a>' . '</legend>' . '<div class="collapse" id="foo">barbaz</div>' . '</fieldset>', $tag->getHTML()); }