public function testSellAllSecurities() { $security1 = new Security(); $security1->setId(15); $security1->setQty(200); $security2 = new Security(); $security2->setId(20); $security2->setQty(400); $securityCollection = new SecurityCollection(); $securityCollection->add($security1); $securityCollection->add($security2); $this->account->setSecurities($securityCollection); $this->account->sellAllSecurities(); $qty = 0; foreach ($this->account->getSecurities() as $security) { $qty += $security->getQty(); } $this->assertEquals(0, $qty); }