public async Task <string> FindSuitableShortLinkAsync(int maximimAttemptsCount = 5)
{
for (var attempt = 0; attempt < maximimAttemptsCount; attempt++)
{
var shortLink = _shortLinkGenerator.CreateShortLink(7);
if (await _checkExistenceFunction(shortLink))
{
continue;
}
return(shortLink);
}
throw new MaximumAttemptsReachedException(maximimAttemptsCount);
}
public void GenerateShortLink(string inputLink)
{
var actual = _generator.CreateShortLink(7);
actual.Should().MatchRegex("[A-Z0-9]{7}");
}
