public void GetFirstFreeIdIfNoFileIsPresent()
{
idProvider = new FileIdProvider();
var @out = idProvider.GetId(path, ".png");
Assert.Equal("0", @out);
}
public void ThrowExeptionIfGivenDirectoryDoesntExists()
{
var nPath = "notExistingDir/";
if (Directory.Exists(nPath))
{
Directory.Delete(nPath);
}
idProvider = new FileIdProvider();
Assert.Throws <DirectoryNotFoundException>(() => idProvider.GetId(nPath, ".png"));
}
public void ReturnCharacterIfAllNubersAreTaken()
{
idProvider = new FileIdProvider();
for (int i = 0; i < 10; i++)
{
File.Create(path + i + ".png").Close();
}
var @out = idProvider.GetId(path, ".png");
Assert.Equal("A", @out);
for (int i = 0; i < 10; i++)
{
File.Delete(path + i + ".png");
}
}
public void AddNextCharacterIfAllPossibleIdCombitaionTaken()
{
idProvider = new FileIdProvider();
for (int i = 48; i < 91; i++)
{
if (Char.IsLetterOrDigit((char)i))
{
File.Create(path + (char)i + ".png").Close();
}
}
var @out = idProvider.GetId(path, ".png");
Assert.Equal("00", @out);
for (int i = 48; i < 91; i++)
{
if (Char.IsLetterOrDigit((char)i))
{
File.Delete(path + (char)i + ".png");
}
}
}