public void PageIndex_AddEntryToPageIndexWithEntries()
{
using (target = new PageIndex(stream))
{
PageSummary summary1 = new PageSummary()
{
Allocated = true, DataFileOffset = 4096, Size = 1024, AddressSpaceId = id1, Used = 300
};
target.AddOrUpdateEntry(summary1);
Assert.AreEqual(3, target[id1].Count());
Assert.AreEqual(4096, target[id1][2].DataFileOffset);
Assert.AreEqual(1024, target[id1][2].Size);
Assert.IsTrue(target[id1][2].Allocated);
Assert.AreEqual(132, target[id1][2].PageFileIndex);
Assert.AreEqual(5120, target.EndOfPageIndex);
}
}
public void PageIndex_AddEntryToEmptyPageIndex()
{
stream = new MemoryStream();
using (target = new PageIndex(stream))
{
PageSummary summary1 = new PageSummary()
{
AddressSpaceId = id1, Allocated = true, DataFileOffset = 0, Size = 1024, Used = 1024
};
target.AddOrUpdateEntry(summary1);
Assert.AreEqual(0, target[id1][0].DataFileOffset);
Assert.AreEqual(1024, target[id1][0].Size);
Assert.AreEqual(1024, target[id1][0].Used);
Assert.IsTrue(target[id1][0].Allocated);
Assert.AreEqual(0, target[id1][0].PageFileIndex);
Assert.AreEqual(id1, target[id1][0].AddressSpaceId);
Assert.AreEqual(1024, target.EndOfPageIndex);
}
}
public void PageIndex_MoveSummaryFromEmptyToUsed()
{
target = new PageIndex(stream);
Assert.AreEqual(2, target[id1].Count);
Assert.AreEqual(1, target.EmptyPages.Count);
PageSummary summary = target.EmptyPages[0];
Assert.AreEqual(99, summary.PageFileIndex);
summary.AddressSpaceId = id1;
target.AddOrUpdateEntry(summary);
stream.Position = 0;
var newIndex = new PageIndex(stream);
Assert.AreEqual(3, target[id1].Count);
Assert.AreEqual(0, target.EmptyPages.Count);
PageSummary retrieved = target[id1][2];
Assert.AreEqual(99, retrieved.PageFileIndex);
}
public void PageIndex_UpdateEntryInPageIndex()
{
using (target = new PageIndex(stream))
{
Assert.IsNotNull(target);
var summary = target[id1][1];
summary.Used = 400;
target.AddOrUpdateEntry(summary);
Assert.AreEqual(2, target[id1].Count);
Assert.AreEqual(0, target[id1][0].DataFileOffset);
Assert.AreEqual(1024, target[id1][0].Size);
Assert.AreEqual(1024, target[id1][0].Used);
Assert.IsTrue(target[id1][0].Allocated);
Assert.AreEqual(0, target[id1][0].PageFileIndex);
Assert.AreEqual(1, target[id2].Count);
Assert.AreEqual(1024, target[id2][0].DataFileOffset);
Assert.AreEqual(1024, target[id2][0].Size);
Assert.AreEqual(100, target[id2][0].Used);
Assert.IsTrue(target[id2][0].Allocated);
Assert.AreEqual(33, target[id2][0].PageFileIndex);
Assert.AreEqual(2048, target[id1][1].DataFileOffset);
Assert.AreEqual(1024, target[id1][1].Size);
Assert.AreEqual(400, target[id1][1].Used);
Assert.IsTrue(target[id1][1].Allocated);
Assert.AreEqual(66, target[id1][1].PageFileIndex);
Assert.AreEqual(3072, target[Guid.Empty][0].DataFileOffset);
Assert.AreEqual(1024, target[Guid.Empty][0].Size);
Assert.AreEqual(0, target[Guid.Empty][0].Used);
Assert.IsFalse(target[Guid.Empty][0].Allocated);
Assert.AreEqual(99, target[Guid.Empty][0].PageFileIndex);
Assert.AreEqual(4096, target.EndOfPageIndex);
}
}