public void ConstructorThrowsWhenArgIsNotReadOnly()
{
using (MemoryStream ms = new MemoryStream())
{
using (MockStream stream = new MockStream(ms, true, true, true))
{
long pageSize = BTreeNode <long, string> .GetRequiredPageSize(MockLongSerializer.CDataSize, MockStringSerializer.CDataSize, BTreeNode <long, string> .VeryMinKeyValuePairCapacity);
using (StreamingPageStorage storage = StreamingPageStorage.Create(stream, pageSize, 1, null, new CancellationToken(false), true))
{
MockBTree tree = new MockBTree(storage, new MockLongSerializer(), new MockStringSerializer());
Assert.ThrowsException <ArgumentException>(() => {
var reader = new BTreeReader <long, string>(tree);
});
}
}
}
}
public void ConstructorWorks(long count)
{
using (MemoryStream ms = new MemoryStream())
{
using (MockStream stream = new MockStream(ms, true, true, true))
{
long pageSize = BTreeNode <long, string> .GetRequiredPageSize(MockLongSerializer.CDataSize, MockStringSerializer.CDataSize, BTreeNode <long, string> .VeryMinKeyValuePairCapacity);
using (var storage = StreamingPageStorage.Create(stream, pageSize, 1, null, new CancellationToken(false), true))
{
var tree = new MockBTree(storage, new MockLongSerializer(), new MockStringSerializer());
//Initialize some data into the tree
for (long i = 0; i < count; i++)
{
Assert.IsTrue(tree.Insert(i, i.ToString(), false, out _));
}
}
//Load the tree as read-only
using (var storage = StreamingPageStorage.Load(stream, true, true, true))
{
var tree = new MockBTree(storage, new MockLongSerializer(), new MockStringSerializer());
BTreeReader <long, string> reader = new BTreeReader <long, string>(tree);
Assert.AreSame(tree, reader.BTree);
if (tree.Root != null)
{
Assert.AreEqual(tree.Root.PageIndex, reader.RootNode.PageIndex);
}
else
{
Assert.IsNull(reader.RootNode);
}
}
}
}
}
public MockPageStorage(Stream baseStream, long pageSize, long initialCapacity, bool isReadOnly, bool isCapacityFixed)
{
StreamingPageStorage.Create(baseStream, pageSize, initialCapacity, null, new CancellationToken(false), true).Dispose();
streamingPageStorage = StreamingPageStorage.Load(baseStream, isReadOnly, isCapacityFixed, false);
}