public void ChainedRangeReadWriteTest()
{
var stream = new MemoryStream();
var chain = new ListChain <DocumentId>()
{
new RangePostingsList()
{
0, 1, 2
},
GetDocIds(10, 11),
new RangePostingsList()
{
12, 13, 14, 15, 100, 111
},
};
using var writer = new PostingsListWriter(stream);
writer.Write(chain);
stream.Seek(0, SeekOrigin.Begin);
using var reader = new PostingsListReader(stream, leaveOpen: false);
var count = reader.ReadCount(0);
var deserialized = reader.Read(0);
Assert.Equal(chain.Count, count);
Assert.True(deserialized is RangePostingsList);
Assert.Equal(chain, deserialized);
}
public void UncompressedReadWriteTest()
{
var stream = new MemoryStream();
var postings = GetDocIds(0, 1, 2, 10, 11, 12, 13, 14, 15, 100, 111);
using var writer = new PostingsListWriter(stream);
writer.Write(postings);
stream.Seek(0, SeekOrigin.Begin);
using var reader = new PostingsListReader(stream, leaveOpen: false);
var count = reader.ReadCount(0);
var deserialized = reader.Read(0);
Assert.Equal(postings.Length, count);
Assert.False(deserialized is RangePostingsList);
Assert.Equal(postings, deserialized);
}
public void VarintReadWriteTest()
{
var stream = new MemoryStream();
var postings = new VarintPostingsList()
{
0, 1, 2, 10, 11, 12, 13, 14, 15, 100, 111
};
using var writer = new PostingsListWriter(stream);
writer.Write(postings);
stream.Seek(0, SeekOrigin.Begin);
using var reader = new PostingsListReader(stream, leaveOpen: false);
var count = reader.ReadCount(0);
var deserialized = reader.Read(0);
Assert.Equal(postings.Count, count);
Assert.True(deserialized is VarintPostingsList);
Assert.Equal(postings, deserialized);
}
public ExternalIndex(IDictionary <T, long> offsets, Stream postingsStream)
{
Offsets = offsets;
PostingsStream = postingsStream;
reader = new PostingsListReader(postingsStream, leaveOpen: true);
}
