private static void BlockStreamWriterSizeTestRunner(IBlockTransformer transformer, [CanBeNull] IBlockCache cache)
{
BlockStreamWriterOnceTest(transformer, cache);
using var ms = new KeepOpenMemoryStream();
var items = 10_000;
using (var writer = new BlockRandomAccessStream(ms, transformer, cache: cache)) {
using (var binaryWriter = new BinaryWriter(writer, Encoding.ASCII, true)) {
for (var i = 0; i < items; ++i)
{
binaryWriter.Write(i);
}
}
Assert.AreEqual(writer.Position, writer.Length);
writer.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * items);
using var binaryReader = new BinaryReader(writer, Encoding.ASCII, true);
for (var i = 0; i < items; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
}
}
using (var writer = new BlockRandomAccessStream(ms, transformer, cache: cache)) {
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * items);
using (var binaryReader = new BinaryReader(writer, Encoding.ASCII, true)) {
for (var i = 0; i < items; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
}
}
Assert.AreEqual(writer.Position, writer.Length);
Assert.AreEqual(writer.Length, sizeof(int) * items);
if (transformer.MayChangeSize)
{
Assert.ThrowsException <IOException>(() => {
writer.Seek(sizeof(int), SeekOrigin.Begin);
using var binaryWriter = new BinaryWriter(writer, Encoding.ASCII, true);
for (var i = 0; i < items; ++i)
{
binaryWriter.Write(i);
}
});
Assert.AreEqual(sizeof(int), writer.Position);
}
writer.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * items);
using (var binaryReader = new BinaryReader(writer, Encoding.ASCII, true)) {
for (var i = 0; i < items; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
}
}
Assert.AreEqual(writer.Position, writer.Length);
writer.Seek(-4, SeekOrigin.End);
Assert.AreEqual(writer.Position + 4, writer.Length);
Assert.AreEqual(4, writer.Read(new byte[5]));
Assert.AreEqual(writer.Position, writer.Length);
Assert.AreEqual(0, writer.Read(new byte[5]));
writer.SetLength(0);
Assert.AreEqual(writer.Length, 0);
Assert.AreEqual(writer.Position, 0);
writer.Flush(true);
}
}
public void BlockStreamWriterNone2Test()
{
using var ms = new KeepOpenMemoryStream();
const int COUNT = 100_000;
using (var writer = new BlockRandomAccessStream(ms)) {
using (var binaryWriter = new BinaryWriter(writer, Encoding.ASCII, true)) {
for (var i = 0; i < COUNT; ++i)
{
binaryWriter.Write(i);
}
}
Assert.AreEqual(writer.Position, writer.Length);
writer.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * COUNT);
using var binaryReader = new BinaryReader(writer, Encoding.ASCII, true);
for (var i = 0; i < COUNT; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
}
}
using (var writer = new BlockRandomAccessStream(ms)) {
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * COUNT);
using (var binaryReader = new BinaryReader(writer, Encoding.ASCII, true)) {
for (var i = 0; i < COUNT; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
}
}
writer.Seek(sizeof(int), SeekOrigin.Begin);
using (var binaryWriter = new BinaryWriter(writer, Encoding.ASCII, true)) {
for (var i = 0; i < COUNT; ++i)
{
binaryWriter.Write(i);
}
}
Assert.AreEqual(writer.Position, writer.Length);
writer.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(writer.Position, 0);
Assert.AreEqual(writer.Length, sizeof(int) * (COUNT + 1));
using (var binaryReader = new BinaryReader(writer, Encoding.ASCII, false)) {
for (var i = 0; i < COUNT + 1; ++i)
{
Assert.AreEqual(Math.Max(i - 1, 0), binaryReader.ReadInt32());
}
}
Assert.AreEqual(writer.Position, writer.Length);
writer.Seek(-4, SeekOrigin.End);
Assert.AreEqual(writer.Position + 4, writer.Length);
Assert.AreEqual(4, writer.Read(new byte[5]));
Assert.AreEqual(writer.Position, writer.Length);
Assert.AreEqual(0, writer.Read(new byte[5]));
writer.SetLength(0);
Assert.AreEqual(writer.Length, 0);
Assert.AreEqual(writer.Position, 0);
}
}