public void Generate_GeneratesUniqueIds_IfNormalSettings()
{
ShortIdGenerator sut = new ShortIdGenerator();
List <string> ids = new List <string>();
for (int i = 0; i < 1000; i++)
{
string id = sut.Generate();
ids.Add(id);
}
Assert.AreEqual(ids.Count, ids.Distinct().Count());
}
public async Task <string> GetOrCreateShortCodeAsync(string longUrl)
{
var shortCode = await _repository.GetShortCodeAsync(longUrl);
if (shortCode == null)
{
do
{
shortCode = ShortIdGenerator.CreateId();
}while ((await _repository.GetLongUrlAsync(shortCode)) != null);
await _repository.SetShortCodeAsync(longUrl, shortCode);
}
return(shortCode);
}
