public function test_prepares_form_field()
 {
     $html = FormField::username();
     $this->assertContains('<div class="form-group">', $html);
     $this->assertContains('<label for="username" class="control-label">Username: </label>', $html);
     $this->assertContains('<input class="form-control" name="username" type="text" id="username">', $html);
 }