public function testEquals()
{
$usdCode = 'USD';
$usd = new Currency($usdCode, 5, 2);
$usd2 = new Currency($usdCode, 5, 2);
$usd3 = new Currency($usdCode, 7, 2);
$this->assertTrue($usd->equals($usd2));
$this->assertTrue($usd2->equals($usd));
$this->assertFalse($usd->equals($usd3));
$eurCode = 'EUR';
$eur = new Currency($eurCode, 5, 2);
$eur2 = new Currency($eurCode, 5, 2);
$eur3 = new Currency($eurCode, 6, 2);
$this->assertTrue($eur->equals($eur2));
$this->assertTrue($eur2->equals($eur));
$this->assertFalse($eur->equals($eur3));
$this->assertFalse($usd->equals($eur));
$this->assertFalse($eur->equals($usd));
}
