Scientist\Laboratory::addJournal PHP Метод

    public function addJournal(Journal $journal)
    {
        $this->journals[] = $journal;
        return $this;
    }

 public function test_that_journal_receives_result_information()
 {
     $lab = new Laboratory();
     $journal = new StandardJournal();
     $lab->addJournal($journal);
     $control = function () {
         return 'foo';
     };
     $trial = function () {
         return 'bar';
     };
     $value = $lab->experiment('foo')->control($control)->trial('bar', $trial)->run();
     $this->assertEquals('foo', $value);
     $this->assertInstanceOf('\\Scientist\\Report', $journal->getReport());
     $this->assertEquals('foo', $journal->getReport()->getName());
     $this->assertEquals('foo', $journal->getReport()->getControl()->getValue());
     $this->assertEquals('bar', $journal->getReport()->getTrial('bar')->getValue());
     $this->assertEquals(false, $journal->getReport()->getTrial('bar')->isMatch());
 }