public static IServiceCollection AddShortCodeGenerator <TGenerator>(
this IServiceCollection services,
Action <ShortCodeOptions> options = null)
where TGenerator : class, IShortCodeGenerator
{
ShortCodeOptions scOptions = new ShortCodeOptions();
options?.Invoke(scOptions);
services.AddSingleton(scOptions);
services.AddSingleton <IEncoder>(p => new Encoder(scOptions.CharacterSpace));
services.AddSingleton <IShortCodeGenerator, TGenerator>();
services.AddSingleton <IShortCodeFactory, ShortCodeFactory>();
return(services);
}
public void Ctor_LogsWarning_WhenOptionsAreInconsistent()
{
var logger = new TestCaptureLogger <ShortCodeFactory>();
var options = new ShortCodeOptions
{
CharacterSpace = Encoder.LettersAndDigits,
FixedLength = 20,
};
var encoder = new Encoder(options.CharacterSpace);
_ = new ShortCodeFactory(new Mock <IShortCodeGenerator>().Object, encoder, options, logger);
logger.Logs.Count.ShouldBe(1);
Console.WriteLine(logger.Logs[0].FormattedMessage);
logger.Logs[0].LogLevel.ShouldBe(LogLevel.Warning);
logger.Logs[0].FormattedMessage.ShouldStartWith("The Short Code generator will always produce codes with padding");
}
public void GetCodes_ShouldReturnRequiredNumberOfCodes(int numberOfCodes)
{
var options = new ShortCodeOptions
{
CharacterSpace = Encoder.LettersAndDigits,
FixedLength = 5,
};
var factory = new ShortCodeFactory(
new GuidCodeGenerator(),
new Encoder(Encoder.ReducedAmbiguity),
options,
new NullLogger <ShortCodeFactory>());
var result = factory.GetCodes(numberOfCodes).ToArray();
result.Length.ShouldBe(numberOfCodes);
result.Distinct().Count().ShouldBe(numberOfCodes);
}
public void GetNextCode_ShouldReturnCode()
{
var options = new ShortCodeOptions
{
CharacterSpace = Encoder.LettersAndDigits,
FixedLength = 5,
};
var factory = new ShortCodeFactory(
new GuidCodeGenerator(),
new Encoder(Encoder.ReducedAmbiguity),
options,
new NullLogger <ShortCodeFactory>());
var result = factory.GetNextCode();
Console.WriteLine(result);
result.Length.ShouldBe(5);
}