public function testManagerFindsProperExchangeRate() { $exManager = new ExchangeManager(); $exManager->add(new ExchangeRate("BGN/EUR 0.5113")); $exRate = $exManager->findExRate(new Currency("BGN"), new Currency("EUR")); $exRate2 = $exManager->findExRate(new Currency("EUR"), new Currency("BGN")); $this->assertSame($exRate, $exRate2); }