public void CubeRoot_Test()
{
var calculator = new Calculator1();
Assert.AreEqual(5, calculator.Cube_Root(125));
Assert.AreEqual(-1, calculator.Cube_Root(-1));
Assert.AreEqual(4.25, calculator.Cube_Root(76.765625));
Assert.AreEqual(1, calculator.Cube_Root(1));
Assert.AreEqual(0, calculator.Cube_Root(0));
}