public static void MemoryBufferStream_AsyncPatternRead_SmallBuffer()
{
var truth = BufferComparerTests.GenerateSegment(13, 203, 1).AsReadOnlyMemory();
var buffer = new byte[100];
using (var sut = new MemoryBufferStream(truth))
{
Assert.Equal(50, sut.SyncAsyncRead(buffer, 0, 50));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 50), truth.Slice(0, 50), BufferComparer.Memory);
Assert.Equal(100, sut.SyncAsyncRead(buffer, 0, 100));
Assert.Equal(buffer.AsReadOnlyMemory(), truth.Slice(50, 100), BufferComparer.Memory);
Assert.Equal(53, sut.SyncAsyncRead(buffer, 0, 100));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
// Ensure nothing was copied.
Assert.Equal(0, sut.SyncAsyncRead(buffer, 0, 100));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
Assert.Equal(0, sut.SyncAsyncRead(buffer, 0, 100));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
}
}
public static async Task MemoryBufferStream_ReadAsync_SmallBuffer()
{
var truth = BufferComparerTests.GenerateSegment(13, 203, 1).AsReadOnlyMemory();
var buffer = new byte[100];
using (var sut = new MemoryBufferStream(truth))
{
Assert.Equal(50, await sut.ReadAsync(buffer, 0, 50));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 50), truth.Slice(0, 50), BufferComparer.Memory);
Assert.Equal(100, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory(), truth.Slice(50, 100), BufferComparer.Memory);
Assert.Equal(53, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
// Ensure nothing was copied.
Assert.Equal(0, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
Assert.Equal(0, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 53), truth.Slice(150, 53), BufferComparer.Memory);
}
}
public static void MemoryBufferStream_CopyAsync()
{
var truth = BufferComparerTests.GenerateSegment(13, 99834, 1).AsReadOnlyMemory();
using (var sut = new MemoryBufferStream(truth))
using (var ms = new MemoryStream())
{
sut.CopyToAsync(ms, 500);
var buf = ms.ToArray();
Assert.Equal(truth, buf.AsReadOnlyMemory(), BufferComparer.Memory);
Assert.Equal(truth.Length, sut.Position);
}
}
public static void MemoryBufferStream_ReadByte()
{
var truth = BufferComparerTests.GenerateSegment(13, 107, 1).AsReadOnlyMemory();
using (var sut = new MemoryBufferStream(truth))
{
for (var i = 0; i < truth.Length; i++)
{
Assert.Equal(truth.Span[i], sut.ReadByte());
}
Assert.Equal(-1, sut.ReadByte());
Assert.Equal(-1, sut.ReadByte());
}
}
public static void StreamExtensions_Write()
{
var buffer = BufferComparerTests.GenerateSegment(0, 64, 1);
var memory = new ReadOnlyMemory <byte>(buffer.Array, buffer.Offset, buffer.Count);
using (var specimen = new MemoryStream())
{
specimen.Write(memory);
Assert.Equal((IEnumerable <byte>)buffer, specimen.ToArray());
}
using (var specimen = new MemoryStream())
{
specimen.Write(memory, 13);
Assert.Equal((IEnumerable <byte>)buffer, specimen.ToArray());
}
}
public static void MemoryBufferStream_AsyncPatternRead_BigBuffer()
{
var truth = BufferComparerTests.GenerateSegment(13, 107, 1).AsReadOnlyMemory();
var buffer = new byte[1024];
using (var sut = new MemoryBufferStream(truth))
{
Assert.Equal(107, sut.SyncAsyncRead(buffer, 0, 1024));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 107), truth, BufferComparer.Memory);
for (var i = 107; i < 1024; i++)
{
Assert.Equal(0, buffer[i]);
}
Assert.Equal(0, sut.SyncAsyncRead(buffer, 0, 1024));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 107), truth, BufferComparer.Memory);
}
}
public static async Task MemoryBufferStream_ReadAsync_BigBuffer()
{
var truth = BufferComparerTests.GenerateSegment(13, 107, 1).AsReadOnlyMemory();
var buffer = new byte[1024];
using (var sut = new MemoryBufferStream(truth))
{
Assert.Equal(107, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 107), truth, BufferComparer.Memory);
for (var i = 107; i < 1024; i++)
{
Assert.Equal(0, buffer[i]);
}
Assert.Equal(0, await sut.ReadAsync(buffer));
Assert.Equal(buffer.AsReadOnlyMemory().Slice(0, 107), truth, BufferComparer.Memory);
}
}
