public virtual void TestCloneSliceSafety()
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testCloneSliceSafety"));
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
io.WriteInt(1);
io.WriteInt(2);
io.Dispose();
IndexInputSlicer slicer = mmapDir.CreateSlicer("bytes", NewIOContext(Random()));
IndexInput one = slicer.OpenSlice("first int", 0, 4);
IndexInput two = slicer.OpenSlice("second int", 4, 4);
IndexInput three = (IndexInput)one.Clone(); // clone of clone
IndexInput four = (IndexInput)two.Clone(); // clone of clone
slicer.Dispose();
try
{
one.ReadInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
try
{
two.ReadInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
try
{
three.ReadInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
try
{
four.ReadInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
one.Dispose();
two.Dispose();
three.Dispose();
four.Dispose();
// test double-close of slicer:
slicer.Dispose();
mmapDir.Dispose();
}
public virtual void TestSlicedSeeking()
{
for (int i = 0; i < 10; i++)
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testSlicedSeeking"), null, 1 << i);
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
var bytes = new byte[1 << (i + 1)]; // make sure we switch buffers
Random().NextBytes(bytes);
io.WriteBytes(bytes, bytes.Length);
io.Dispose();
IndexInput ii = mmapDir.OpenInput("bytes", NewIOContext(Random()));
var actual = new byte[1 << (i + 1)]; // first read all bytes
ii.ReadBytes(actual, 0, actual.Length);
ii.Dispose();
Assert.AreEqual(new BytesRef(bytes), new BytesRef(actual));
IndexInputSlicer slicer = mmapDir.CreateSlicer("bytes", NewIOContext(Random()));
for (int sliceStart = 0; sliceStart < bytes.Length; sliceStart++)
{
for (int sliceLength = 0; sliceLength < bytes.Length - sliceStart; sliceLength++)
{
var slice = new byte[sliceLength];
IndexInput input = slicer.OpenSlice("bytesSlice", sliceStart, slice.Length);
input.ReadBytes(slice, 0, slice.Length);
input.Dispose();
Assert.AreEqual(new BytesRef(bytes, sliceStart, sliceLength), new BytesRef(slice));
}
}
slicer.Dispose();
mmapDir.Dispose();
}
}
public virtual void TestCloneSliceClose()
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testCloneSliceClose"));
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
io.WriteInt32(1);
io.WriteInt32(2);
io.Dispose();
IndexInputSlicer slicer = mmapDir.CreateSlicer("bytes", NewIOContext(Random()));
IndexInput one = slicer.OpenSlice("first int", 0, 4);
IndexInput two = slicer.OpenSlice("second int", 4, 4);
one.Dispose();
try
{
one.ReadInt32();
Assert.Fail("Must throw ObjectDisposedException");
}
#pragma warning disable 168
catch (ObjectDisposedException ignore)
#pragma warning restore 168
{
// pass
}
Assert.AreEqual(2, two.ReadInt32());
// reopen a new slice "one":
one = slicer.OpenSlice("first int", 0, 4);
Assert.AreEqual(1, one.ReadInt32());
one.Dispose();
two.Dispose();
slicer.Dispose();
mmapDir.Dispose();
}
public virtual void TestSeekSliceZero()
{
for (int i = 0; i < 31; i++)
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testSeekSliceZero"), null, 1 << i);
IndexOutput io = mmapDir.CreateOutput("zeroBytes", NewIOContext(Random()));
io.Dispose();
IndexInputSlicer slicer = mmapDir.CreateSlicer("zeroBytes", NewIOContext(Random()));
IndexInput ii = slicer.OpenSlice("zero-length slice", 0, 0);
ii.Seek(0L);
ii.Dispose();
slicer.Dispose();
mmapDir.Dispose();
}
}
public virtual void TestSeekSliceEnd()
{
for (int i = 0; i < 17; i++)
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testSeekSliceEnd"), null, 1 << i);
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
var bytes = new byte[1 << i];
Random().NextBytes(bytes);
io.WriteBytes(bytes, bytes.Length);
io.Dispose();
IndexInputSlicer slicer = mmapDir.CreateSlicer("bytes", NewIOContext(Random()));
IndexInput ii = slicer.OpenSlice("full slice", 0, bytes.Length);
var actual = new byte[1 << i];
ii.ReadBytes(actual, 0, actual.Length);
Assert.AreEqual(new BytesRef(bytes), new BytesRef(actual));
ii.Seek(1 << i);
ii.Dispose();
slicer.Dispose();
mmapDir.Dispose();
}
}
