public void RandomTest()
{
var charset = Resources.TestCharSet;
var test = new StringBuilder(512);
var random = new Random();
ForegroundColor = ConsoleColor.Green;
Write(" Running Test: 0 %");
for (int cycle = 0; cycle < 10; cycle++)
{
for (int i = 0; i < 1000; i++)
{
test.Clear();
var length = random.Next(512);
while (length-- > 0)
{
test.Append(charset, random.Next(charset.Length), 1);
}
var compressed = Smaz.Compress(test.ToString());
var decompressed = Smaz.Decompress(compressed);
Assert.AreEqual(test.ToString(), decompressed, "Random failed for: '{0}'", test);
}
SetCursorPosition(19, CursorTop);
Write($"{(cycle + 1) * 10:###} %");
}
SetCursorPosition(0, CursorTop);
}
/// <summary>
/// Test SmazSharp Compression Performance, assume compliance (via other tests)
/// </summary>
public void CompressPerfTest(int Cycles, int Iterations)
{
ForegroundColor = ConsoleColor.Yellow;
WriteLine("------");
WriteLine("Testing Compression Performance");
ForegroundColor = ConsoleColor.Gray;
WriteLine($" Cycles: {Cycles:N0}");
WriteLine($" Iterations: {Iterations:N0}");
#if DEBUG
Assert.Inconclusive("Cannot run performance tests in Debug");
#endif
Assert.IsTrue(Cycles > 0, "The number of Cycles must be greater than 0");
Assert.IsTrue(Iterations > 0, "The number of Iterations must be greater than 0");
ForegroundColor = ConsoleColor.Green;
Write(" Running Tests: 0 %");
var testBytes = Resources.TestStrings.Select(s => Encoding.ASCII.GetBytes(s)).ToArray();
long[] results = new long[Cycles];
byte[] result;
// Warm Up
for (int i = 0; i < testBytes.Length; i++)
{
result = Smaz.Compress(testBytes[i]);
}
// Run Cycles
for (int cycle = 0; cycle < Cycles; cycle++)
{
// Run Iterations
Stopwatch sw = new Stopwatch();
sw.Start();
for (int iteration = 0; iteration < Iterations; iteration++)
{
Smaz.Decompress(testBytes[iteration % testBytes.Length]);
}
sw.Stop();
results[cycle] = sw.ElapsedTicks;
SetCursorPosition(17, CursorTop);
Write($"{(100 / (double)Cycles) * (cycle + 1):N0} %");
}
SetCursorPosition(0, CursorTop);
WriteLine(" Tests Complete ");
WriteLine($" Cycles (ms): {string.Join(", ", results.Select(r => (r / TimeSpan.TicksPerMillisecond).ToString("N1")))}");
WriteLine($" Cycle Average: {results.Average() / TimeSpan.TicksPerMillisecond:N2} milliseconds");
WriteLine($" Average: {results.Average() / Iterations:N5} ticks/operation");
ForegroundColor = ConsoleColor.Yellow;
WriteLine("Compression Performance Testing Complete");
WriteLine("------");
ForegroundColor = ConsoleColor.Gray;
WriteLine();
}
public void CompressTest()
{
for (int i = 0; i < Resources.TestStrings.Length; i++)
{
var test = Resources.TestStrings[i];
var compressedOk = Resources.TestStringsCompressed[i];
var compressedTest = Smaz.Compress(test);
// Compare Length
if (compressedOk.Length != compressedTest.Length)
{
Assert.Fail("Compression failed for: '{0}'", test);
}
// Compare Data
for (int c = 0; c < compressedOk.Length; c++)
{
if (compressedOk[c] != compressedTest[c])
{
Assert.Fail("Compression failed for: '{0}'", test);
}
}
}
}