public void FindNthRoot()
{
double x = Math.Round(WorkWithNumber.FindNthRoot(5, 1), 2);
Assert.AreEqual(x, 1);
x = Math.Round(WorkWithNumber.FindNthRoot(3, 8), 2);
Assert.AreEqual(x, 2);
x = Math.Round(WorkWithNumber.FindNthRoot(3, 0.001), 2);
Assert.AreEqual(x, 0.1, 0.01);
x = Math.Round(WorkWithNumber.FindNthRoot(4, 0.04100625), 2);
Assert.AreEqual(x, 0.45, 0.001);
x = Math.Round(WorkWithNumber.FindNthRoot(7, 0.0279936), 2);
Assert.AreEqual(x, 0.6, 0.001);
x = Math.Round(WorkWithNumber.FindNthRoot(4, 0.0081), 2);
Assert.AreEqual(x, 0.3, 0.001);
x = Math.Round(WorkWithNumber.FindNthRoot(3, -0.008), 2);
Assert.AreEqual(x, -0.2, 0.001);
x = Math.Round(WorkWithNumber.FindNthRoot(9, 0.004241979, 0.00000001), 3);
Assert.AreEqual(x, 0.545, 0.0001);
Assert.Catch(typeof(ArgumentException), () => WorkWithNumber.FindNthRoot(-2, 2));
}
public void FindNextBiggerNumber()
{
bool isEquals = false || WorkWithNumber.FindNextBiggerNumber(12) == 21;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(513) == 531;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(2017) == 2071;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(414) == 441;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(144) == 414;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(1234321) == 1241233;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(1234126) == 1234162;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(3456432) == 3462345;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(10) == -1;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.FindNextBiggerNumber(20) == -1;
Assert.IsTrue(isEquals);
}
public void FilterDigit()
{
List <int> list = WorkWithNumber.FilterDigit(new int[] { 7, 2, 34, 52, 70 }, 7);
Assert.AreEqual(list, new List <int>()
{
7, 70
});
Assert.Catch(typeof(NullReferenceException), () => WorkWithNumber.FilterDigit(null, 8));
}
public void InsertNum()
{
//Console.WriteLine(WorkWithNumber.InsertNumber(15, 15, 0, 0));
bool isEquals = false || WorkWithNumber.InsertNumber(15, 15, 0, 0) == 15;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.InsertNumber(8, 15, 0, 0) == 9;
Assert.IsTrue(isEquals);
isEquals = false || WorkWithNumber.InsertNumber(8, 15, 3, 8) == 120;
Assert.IsTrue(isEquals);
//Assert.Equals(WorkWithNumber.InsertNumber(8, 15, 0, 0), 9);
//Assert.Equals(WorkWithNumber.InsertNumber(8, 15, 3, 8), 120);
}
