public void RoundToIntNotAtMidPoint(MidpointRoundingMode mode)
{
const int range = 3;
var epsilon = new BigRational(1, 3);
for (BigRational rational = -range; rational <= range; ++rational)
{
AssertEqual(rational, BigRational.RoundToInt(rational + epsilon, mode));
AssertEqual(rational, BigRational.RoundToInt(rational - epsilon, mode));
}
}
public void RoundToIntModeError()
{
Assert.Throws <ArgumentException>(() => BigRational.RoundToInt(1, (MidpointRoundingMode)100));
}
public void RoundToIntAtMidPoint(string rational, MidpointRoundingMode mode, int rounded)
{
Assert.AreEqual(
BigRational.RoundToInt(BigRational.Parse(rational), mode),
new BigInteger(rounded));
}
