public function testInvalidContent()
{
$this->assertSame(false, TagParser::convert(false));
$this->assertSame(true, TagParser::convert(true));
$this->assertSame(1, TagParser::convert(1));
$this->assertSame(0, TagParser::convert(0));
$this->assertSame('string', TagParser::convert('string'));
$this->assertSame([], TagParser::convert([]));
$this->assertSame('', TagParser::convert(''));
}