public void FindNextBiggerNumber_TimeSpanIsValid()
{
var timer = System.Diagnostics.Stopwatch.StartNew();
var expectedNumber = 1241233;
var actualNumber = NextBiggerNumberFinder.FindNextBiggerNumber(1234321, out TimeSpan actualTime);
timer.Stop();
Assert.That(actualTime > TimeSpan.Zero && actualTime <= timer.Elapsed);
Assert.AreEqual(expectedNumber, actualNumber);
}
public void FindNextBiggerNumberAndTimeElapsed_TimeSpanIsValid()
{
var timer = System.Diagnostics.Stopwatch.StartNew();
var expectedNumber = 1241233;
(int number, TimeSpan timeElapsed)actualResult =
NextBiggerNumberFinder.FindNextBiggerNumberAndTimeElapsed(1234321);
timer.Stop();
Assert.That(actualResult.timeElapsed >= TimeSpan.Zero &&
actualResult.timeElapsed <= timer.Elapsed);
Assert.AreEqual(expectedNumber, actualResult.number);
}
public void FindNextBiggerNumber_NegativeNumber_ArgumentException() => Assert.Throws <ArgumentException>(() => NextBiggerNumberFinder.FindNextBiggerNumber(-1));
public int FindNextBiggerNumber_BiggerNotExist(int number) => NextBiggerNumberFinder.FindNextBiggerNumber(number);
