public void ChangeSaldoTest()
{
Client client = new Client("Jan", "Nowak", "01234567891");
Investment investment = new Investment("123", new InterestTenPercent(), 1000, client);
investment.ChangeSaldo(100);
Assert.AreEqual(1100, investment.GetSaldo());
investment.ChangeSaldo(-400);
Assert.AreEqual(700, investment.GetSaldo());
}
public void ChangeSaldoTest2()
{
Client client = new Client("Jan", "Nowak", "01234567891");
Investment investment = new Investment("123", new InterestTenPercent(), 1000, client);
investment.ChangeSaldo(-1100);
}