public function testStart() { $task1 = new Task(); $task1->setDescription('foo1'); $this->taskManager->save($task1); $this->assertNull($task1->getStart()); $this->taskManager->start($task1); $this->taskManager->save($task1); $this->assertInstanceOf('DateTime', $task1->getStart()); $this->taskManager->stop($task1); $this->taskManager->save($task1); $this->assertNull($task1->getStart()); }