public function testCountItems() { $this->assertNull(FileHelper::countItemsInDir('adsdaad')); $this->assertNull(FileHelper::countItemsInDir(null)); $this->assertEquals(12, FileHelper::countItems($this->datapath . '/dir_1')); $this->assertEquals(5, FileHelper::countItems($this->datapath . '/dir_1/dir_1_2')); }