public virtual void TestOverflow() // memory hole
{
BaseDirectoryWrapper dir = NewFSDirectory(CreateTempDir("testOverflow"));
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).Throttling = MockDirectoryWrapper.Throttling_e.NEVER;
}
int blockBits = TestUtil.NextInt(Random(), 14, 28);
int blockSize = 1 << blockBits;
var arr = new byte[TestUtil.NextInt(Random(), blockSize / 2, blockSize * 2)];
for (int i = 0; i < arr.Length; ++i)
{
arr[i] = (byte)(sbyte)i;
}
long numBytes = (1L << 31) + TestUtil.NextInt(Random(), 1, blockSize * 3);
var p = new PagedBytes(blockBits);
var @out = dir.CreateOutput("foo", IOContext.DEFAULT);
for (long i = 0; i < numBytes;)
{
Assert.AreEqual(i, @out.FilePointer);
int len = (int)Math.Min(arr.Length, numBytes - i);
@out.WriteBytes(arr, len);
i += len;
}
Assert.AreEqual(numBytes, @out.FilePointer);
@out.Dispose();
IndexInput @in = dir.OpenInput("foo", IOContext.DEFAULT);
p.Copy(@in, numBytes);
PagedBytes.Reader reader = p.Freeze(Random().NextBoolean());
foreach (long offset in new long[] { 0L, int.MaxValue, numBytes - 1, TestUtil.NextLong(Random(), 1, numBytes - 2) })
{
BytesRef b = new BytesRef();
reader.FillSlice(b, offset, 1);
Assert.AreEqual(arr[(int)(offset % arr.Length)], b.Bytes[b.Offset]);
}
@in.Dispose();
dir.Dispose();
}