/** @test */
 public function github_username_can_be_in_brackets()
 {
     $transformer = new GitHubUsernameTransformer();
     $this->assertEquals('Adam Wathan (<a href="http://github.com/adamwathan" target="_blank">@adamwathan</a>)', $transformer->transform('Adam Wathan (@adamwathan)'));
     $this->assertEquals('Adam Wathan [<a href="http://github.com/adamwathan" target="_blank">@adamwathan</a>]', $transformer->transform('Adam Wathan [@adamwathan]'));
     $this->assertEquals('Adam Wathan {<a href="http://github.com/adamwathan" target="_blank">@adamwathan</a>}', $transformer->transform('Adam Wathan {@adamwathan}'));
     $this->assertEquals('Adam Wathan <<a href="http://github.com/adamwathan" target="_blank">@adamwathan</a>>', $transformer->transform('Adam Wathan <@adamwathan>'));
 }
 /** @test */
 public function it_doesnt_convert_usernames_in_links()
 {
     $transformer = new GitHubUsernameTransformer();
     $this->assertEquals('I am <a href="http://twitter.com/stauffermatt">@stauffermatt</a> on Twitter', $transformer->transform('I am <a href="http://twitter.com/stauffermatt">@stauffermatt</a> on Twitter'));
     $this->assertEquals('I am <a href="http://twitter.com/michaeldyrynda">little known @michaeldyrynda</a> on Twitter', $transformer->transform('I am <a href="http://twitter.com/michaeldyrynda">little known @michaeldyrynda</a> on Twitter'));
 }
 /** @test */
 public function it_doesnt_match_an_at_symbol_on_its_own()
 {
     $transformer = new GitHubUsernameTransformer();
     $this->assertEquals('Meet me @ the place', $transformer->transform('Meet me @ the place'));
 }