public void TryGetModInverseTest()
{
var testData = new List <Tuple <BigInteger, BigInteger, bool, BigInteger> >()
{
Tuple.Create((BigInteger)2, (BigInteger)3, true, (BigInteger)2),
Tuple.Create((BigInteger)(-1), (BigInteger)3, true, (BigInteger)2),
Tuple.Create(BigInteger.Zero, (BigInteger)3, false, BigInteger.Zero),
Tuple.Create((BigInteger)3, (BigInteger)3, false, BigInteger.Zero),
Tuple.Create((BigInteger)16, (BigInteger)24, false, BigInteger.Zero),
Tuple.Create((BigInteger)7, (BigInteger)25, true, (BigInteger)18),
};
foreach (var testExample in testData)
{
var isInvertible = ModHelper.TryGetModInverse(testExample.Item1, testExample.Item2, out BigInteger result);
Assert.Equal(testExample.Item3, isInvertible);
if (isInvertible)
{
Assert.Equal(testExample.Item4, result);
}
}
}
