public virtual void TestStatistics()
{
URI fsUri = GetFsUri();
FileSystem.Statistics stats = FileContext.GetStatistics(fsUri);
Assert.Equal(0, stats.GetBytesRead());
Path filePath = fileContextTestHelper.GetTestRootPath(fc, "file1");
FileContextTestHelper.CreateFile(fc, filePath, numBlocks, blockSize);
Assert.Equal(0, stats.GetBytesRead());
VerifyWrittenBytes(stats);
FSDataInputStream fstr = fc.Open(filePath);
byte[] buf = new byte[blockSize];
int bytesRead = fstr.Read(buf, 0, blockSize);
fstr.Read(0, buf, 0, blockSize);
Assert.Equal(blockSize, bytesRead);
VerifyReadBytes(stats);
VerifyWrittenBytes(stats);
VerifyReadBytes(FileContext.GetStatistics(GetFsUri()));
IDictionary <URI, FileSystem.Statistics> statsMap = FileContext.GetAllStatistics();
URI exactUri = GetSchemeAuthorityUri();
VerifyWrittenBytes(statsMap[exactUri]);
fc.Delete(filePath, true);
}
