public function testGetters()
{
$m = new Money(100, new Currency('BRL'));
$this->assertEquals(100, $m->getAmount());
$this->assertEquals(1, $m->getValue());
$this->assertEquals(new Currency('BRL'), $m->getCurrency());
$this->assertNotEmpty($m->toArray());
$this->assertJson($m->toJson());
$this->assertNotEmpty($m->jsonSerialize());
}