public void TestNumberSet(int[] input, int expected)
{
IHomework13 sut = new Homework13();
var actual = sut.Homework13(input);
actual.Should().Be(expected);
}
public void IsNineJointNine(int input, bool expected)
{
var sut = new Homework13();
var actual = sut.IsNineNineCheck(input);
actual.Should().Be(expected);
}
