public function testRatio()
{
$eur = Money::EUR(100);
$sameEur = $this->manager->convert($eur, "EUR");
$this->assertEquals(Money::EUR(100), $sameEur);
try {
$this->manager->convert($eur, "USD");
$this->assertTrue(false);
} catch (MoneyException $e) {
$this->assertTrue(true);
}
$this->manager->saveRatio("USD", 1.25);
$usd = $this->manager->convert($eur, "USD");
$this->assertEquals(Money::USD(125), $usd);
$this->manager->saveRatio("CAD", 1.5);
$cad = $this->manager->convert($usd, "CAD");
$this->assertEquals(Money::CAD(150), $cad);
}