public void RoundBank_WithAnIntegerAmmount_ReturnsSameNumber()
{
IBankCalculus sut = new BankCalculus();
decimal integerAmmount = 9;
decimal result = sut.RoundBank(integerAmmount);
Assert.AreEqual(integerAmmount, result);
}
public void RoundBank_WithThreeDecimalsEqualTo005_ReturnsARoundedNumberToUp()
{
IBankCalculus sut = new BankCalculus();
decimal threeDecimals = 1.005M;
decimal expected = 1.01M;
decimal result = sut.RoundBank(threeDecimals);
Assert.AreEqual(expected, result);
}
public void RoundBank_WithThreeDecimals_ReturnsARoundedNumber()
{
IBankCalculus sut = new BankCalculus();
decimal threeDecimals = 1.001M;
decimal result = sut.RoundBank(threeDecimals);
Assert.AreNotEqual(threeDecimals, result);
Assert.IsTrue(result.ToString().Length == threeDecimals.ToString().Length - 1);
}