public function testSimple() { $di = new DigitalInformation(1024, Unit::BYTE); $this->assertEquals('1,024.00 B', $di->out()); $this->assertEquals('1.00 kB', $di->to(Unit::KILOBYTE)->out()); $di = new DigitalInformation(1, 'ZB'); $this->assertEquals('1.00 ZB', $di->out()); $this->assertEquals('1,024.00 EB', $di->to(Unit::EXABYTE)->out()); }