public void NegativeValueTest()
{
var x = -5;
var solver = new SquareRoot();
Assert.Throws <ArgumentOutOfRangeException>(() => solver.FindSqrt(x));
}
public void NormalBehaviourMultiTest(double x)
{
//AAA
var solver = new SquareRoot();
var result = solver.FindSqrt(x);
Assert.AreEqual(result, Math.Sqrt(x), 0.0000001);
}