public void GetFibonacciNumber_ShouldReturn_ValidNumber_FromSeries()
{
int[] fibonacci = new int[] { 0, 1, 1, 2, 3, 5, 8, 13 };
var result = _calculationsService.GetFibonacciNumber(4);
Assert.AreEqual(fibonacci[4], 3);
}
public void Fibonacci_ShouldReturn_CorrectIndex_FromSeries()
{
var expectedResult = 21;
_calculations.GetFibonacciNumber(Arg.Any <long>()).Returns(expectedResult);
var actionResult = _valuesController.Fibonacci(8);
var contentResult = actionResult as OkNegotiatedContentResult <string>;
Assert.IsNotNull(contentResult);
Assert.AreEqual(Convert.ToInt64(contentResult.Content), expectedResult);
}
public IHttpActionResult Fibonacci(long n)
{
if (n < 0)
{
return(BadRequest());
}
try
{
var result = _calculations.GetFibonacciNumber(n);
if (result < 0)
{
return(BadRequest());
}
return(Ok(result.ToString()));
}
catch (OverflowException)
{
return(BadRequest());
}
}
