public void ReuseDeletedFileSpace()
{
IntArrayList handles = new IntArrayList();
for (int i = 0; i < 10; ++i)
{
int handle;
using (BinaryWriter file = _bfs.AllocFile(out handle))
{
handles.Add(handle);
for (int j = 0; j < 50; ++j)
{
file.Write(handle.ToString());
}
}
using (BinaryWriter file = _bfs.AllocFile(out handle))
{
handles.Add(handle);
for (int j = 0; j < 200; ++j)
{
file.Write(handle.ToString());
}
}
}
for (int i = 0; i < 10; ++i)
{
_bfs.DeleteFile(handles[(i * 2) + 1]);
}
_bfs.Dispose();
long bsfLength = new FileInfo(_bfsFile).Length;
SetUp();
// file handles are reused in back order
for (int i = 10; i > 0; --i)
{
int handle;
using (BinaryWriter file = _bfs.AllocFile(out handle))
{
Assertion.AssertEquals(handles[(i * 2) - 1], handle);
for (int j = 0; j < 200; ++j)
{
file.Write(handle.ToString());
}
}
}
_bfs.Dispose();
Assert.AreEqual(bsfLength, new FileInfo(_bfsFile).Length);
}