ConstantStream

A collection of fake streams for testing purposes.

Types

The library have three fake stream types:

• ConstantByteStream: A fake stream that generate a finite set of the same bytes.
• ConstantStrideStream: A fake stream that generate a byte stride in a loop.
• TimedStream: A fake constant byte stream that waits in determined positions.

Utility streams:

• SubStream: a substream is a small window to the base stream.
• CountedStream: record all the bytes readed.

For example:

// The constant byte stream var cbs = ConstantByteStream(5, (byte) 'A'); // Should return "AAAAA" string text = (new StreamReader(cbs)).ReadToEnd() ; // The constant stride stream // Should read as "ABCABCABCA" ConstantStrideStream(10, Encoding.UTF8.GetBytes("ABC")); // The TimedStream: just like a constant byte stream var timedStream = new TimedStream(1024, (byte)'c'); // add a wait in position 0 of 200 ms timedStream.Delays.Add(0, TimeSpan.FromMilliseconds(200)); // add a wait in position 15 of 250 ms timedStream.Delays.Add(15, TimeSpan.FromMilliseconds(250)); // add a wait in position 1000 of 1 min timedStream.Delays.Add(1000, TimeSpan.FromMinutes(1)); // the timedStream should take about 1 minute + 450 ms + reading overhead(ms) to read in total

Usage

using ConstantStream; // Creates a 1 Mb stream of zeroes. var zeroesStream = new ConstantByteStream(1024*1024, (byte)0); // Creates a 1 Gb stream full of 's'. var sStream = new ConstantByteStream(1024*1024*1024, (byte)'s'); // Handy factory methods (From*) for ConstantByteStream // 1 Mb of zeroes var zeroesStreamEasy = ConstantByteStream.FromZeroes(1024*1024); // 1 Kb of ones var onesStreamEasy = ConstantByteStream.FromOnes(1024); // 42 bytes of 'a' var onesStreamEasy = ConstantByteStream.FromFromA(42); // Handy factory methods (From*) for ConstantStrideStream // 01234567890123456... numbers from 0 to 9 in a loop var zeroesStreamEasy = ConstantStrideStream.FromNumbers(1024*1024); // abcdefghijkl.... alphabet in a loop var zeroesStreamEasy = ConstantStrideStream.FromAlphabet(1024);