public void Corrupt_Volume_Read(string compress, int pgsz, int cnt)
{
var ms = new MemoryStream();
var meta = VolumeMetadataBuilder.Make("String archive", StringArchiveAppender.CONTENT_TYPE_STRING)
.SetVersion(1, 0)
.SetDescription("Testing string messages")
.SetChannel(Atom.Encode("dvop"))
.SetCompressionScheme(compress);
var volume = new DefaultVolume(NOPApplication.Instance.SecurityManager.Cryptography, meta, ms)
{
PageSizeBytes = pgsz
};
using (var appender = new StringArchiveAppender(volume, NOPApplication.Instance.TimeSource, new Atom(65), "*****@*****.**"))
{
for (var i = 0; i < cnt; i++)
{
appender.Append("string-data--------------------------------------------------------" + i.ToString());
}
}
"Volume size is {0:n0} bytes".SeeArgs(ms.Length);
var reader = new StringArchiveReader(volume);
var allCount = reader.All.Count();
Aver.AreEqual(cnt, allCount);
reader.All.ForEach((s, i) => Aver.IsTrue(s.EndsWith("---" + i.ToString())));
var pageCount = reader.GetPagesStartingAt(0).Count();
Aver.IsTrue(pageCount > 0);
"Before corruption: there are {0:n0} total records in {1:n0} pages".SeeArgs(allCount, pageCount);
var midPoint = ms.Length / 2;
ms.Position = midPoint;
for (var j = 0; j < pgsz * 2; j++)
{
ms.WriteByte(0x00); //corruption
}
"-------------- corrupted {0:n0} bytes of {1:n0} total at {2:n0} position ----------- ".SeeArgs(pgsz * 2, ms.Length, midPoint);
var allCount2 = reader.GetEntriesStartingAt(new Bookmark(), skipCorruptPages: true).Count();
Aver.IsTrue(allCount > allCount2);
var pageCount2 = reader.GetPagesStartingAt(0, skipCorruptPages: true).Count();
Aver.IsTrue(pageCount > pageCount2);
"After corruption: there are {0:n0} total records in {1:n0} pages".SeeArgs(allCount2, pageCount2);
volume.Dispose();
}
public void Write_Read_Compare_Strings(bool ascii, int pgsize, string compress, int count, int min, int max)
{
var expected = ascii ? FakeLogMessage.BuildRandomASCIIStringArr(count, min, max) : FakeLogMessage.BuildRandomUnicodeStringArr(count, min, max);
var ms = new MemoryStream();
var meta = VolumeMetadataBuilder.Make("String archive", StringArchiveAppender.CONTENT_TYPE_STRING)
.SetVersion(1, 0)
.SetDescription("Testing string messages")
.SetChannel(Atom.Encode("dvop"));
if (compress.IsNotNullOrWhiteSpace())
{
meta.SetCompressionScheme(compress);
}
var volume = new DefaultVolume(NOPApplication.Instance.SecurityManager.Cryptography, meta, ms);
volume.PageSizeBytes = pgsize;
using (var appender = new StringArchiveAppender(volume,
NOPApplication.Instance.TimeSource,
NOPApplication.Instance.AppId, "dima@zhaba"))
{
for (var i = 0; i < count; i++)
{
appender.Append(expected[i]);
}
}
"Volume data stream is {0:n0} bytes".SeeArgs(ms.Length);
var reader = new StringArchiveReader(volume);
var got = reader.GetEntriesStartingAt(new Bookmark()).ToArray();
Aver.AreEqual(expected.Length, got.Length);
for (int i = 0; i < count; i++)
{
Aver.AreEqual(expected[i], got[i]);
}
volume.Dispose();
}
