public static int Run(int from, int to, IConsole console)
{
if (from < 0 || to < 0)
{
console.Error.WriteLine($"Error: { nameof(from) } and { nameof(to) } must be at least 0");
return(1);
}
// Display result
console.Out.Write($"Result: ");
int result;
if (from < to)
{
while (from <= to)
{
// Execute
result = NthFibonacci.FibonacciIterative(from);
// Display result
console.Out.Write($"{ result } ");
from++;
}
}
else
{
while (from >= to)
{
result = NthFibonacci.FibonacciIterative(from);
console.Out.Write($"{ result } ");
from--;
}
}
console.Out.WriteLine();
return(0);
}
public void FibonacciIterative_WhenNLessThanZero_ThrowsArgumentException()
{
Action actual = () => NthFibonacci.FibonacciIterative(-1);
Assert.Throws <ArgumentException>(actual);
}
public void FibonacciIterative_WhenNGreaterThanZero_ReturnsValidResult(int n, int expected)
{
var actual = NthFibonacci.FibonacciIterative(n);
Assert.Equal(expected, actual);
}