public function testReadWrite()
 {
     $author = new AuthorTag('gossi <*****@*****.**>');
     $this->assertEquals('gossi', $author->getName());
     $this->assertEquals('*****@*****.**', $author->getEmail());
     $this->assertEquals('@author gossi <*****@*****.**>', $author->toString());
     $author = new AuthorTag('lil-g');
     $this->assertEquals('lil-g', $author->getName());
     $this->assertEmpty($author->getEmail());
     $this->assertEquals('@author lil-g', $author->toString());
 }