public void Test_get_GCD_with_valid_data_returns_expected()
{
// Arrange.
const int expected = 1;
const int numInput = 5;
var arrayInput = new[] { 2, 3, 4, 5, 6 };
// Act.
var result = _greatestCommonDivisor.generalizedGCD(numInput, arrayInput);
// Assert.
result.Should().Be(expected);
}
