public void BsonBinaryReader_should_support_reading_more_than_2GB()
{
RequireEnvironment.Check().EnvironmentVariable("EXPLICIT");
var binaryData = new BsonBinaryData(new byte[1024 * 1024]);
var tempFileName = Path.GetTempFileName();
try
{
using (var stream = new FileStream(tempFileName, FileMode.Open))
{
using (var binaryWriter = new BsonBinaryWriter(stream))
{
while (stream.Position < (long)int.MaxValue * 4)
{
binaryWriter.WriteStartDocument();
binaryWriter.WriteName("x");
binaryWriter.WriteBinaryData(binaryData);
binaryWriter.WriteEndDocument();
}
}
var endOfFilePosition = stream.Position;
stream.Position = 0;
using (var binaryReader = new BsonBinaryReader(stream))
{
while (!binaryReader.IsAtEndOfFile())
{
binaryReader.ReadStartDocument();
var bookmark = binaryReader.GetBookmark();
binaryReader.ReadName("x");
binaryReader.ReturnToBookmark(bookmark);
binaryReader.ReadName("x");
var readBinaryData = binaryReader.ReadBinaryData();
Assert.Equal(binaryData.Bytes.Length, readBinaryData.Bytes.Length);
binaryReader.ReadEndDocument();
}
}
Assert.Equal(endOfFilePosition, stream.Position);
}
}
finally
{
try
{
File.Delete(tempFileName);
}
catch
{
// ignore exceptions
}
}
}
public void BackpatchSize_should_throw_when_size_is_larger_than_2GB()
{
using (var stream = new NullBsonStream())
using (var binaryWriter = new BsonBinaryWriter(stream))
{
var bytes = new byte[int.MaxValue / 2]; // 1GB
var binaryData = new BsonBinaryData(bytes);
binaryWriter.WriteStartDocument();
binaryWriter.WriteName("array");
binaryWriter.WriteStartArray();
binaryWriter.WriteBinaryData(binaryData);
binaryWriter.WriteBinaryData(binaryData);
Action action = () => binaryWriter.WriteEndArray(); // indirectly calls private BackpatchSize method
action.ShouldThrow <FormatException>();
}
}
public void BsonBinaryWriter_should_support_writing_more_than_2GB()
{
using (var stream = new NullBsonStream())
using (var binaryWriter = new BsonBinaryWriter(stream))
{
var bigBinaryData = new BsonBinaryData(new byte[int.MaxValue / 2 - 1000]);
for (var i = 0; i < 3; i++)
{
binaryWriter.WriteStartDocument();
binaryWriter.WriteName("x");
binaryWriter.WriteBinaryData(bigBinaryData);
binaryWriter.WriteEndDocument();
}
var smallBinaryData = new BsonBinaryData(new byte[2000]);
binaryWriter.WriteStartDocument();
binaryWriter.WriteName("x");
binaryWriter.WriteBinaryData(smallBinaryData);
binaryWriter.WriteEndDocument();
}
}