addArticle('second', '2021-01-01', 'foo.gmi'); $render->addArticle('third', '2020-01-01', 'old.gmi'); $render->addArticle('first', '2022-01-01', 'new.gmi'); $this->assertStringContainsString(<< new.gmi 2022-01-01 first => foo.gmi 2021-01-01 second => old.gmi 2020-01-01 third EOF, $render->render()); } }