public void PeekReturnsMinuOneByteInTheEnd()
{
var reader = new ReadOnlyBufferReader(Factory.CreateWithContent(new byte[] { 1, 2 }));
Assert.Equal(1, reader.Take());
Assert.Equal(2, reader.Take());
Assert.Equal(-1, reader.Peek());
}
public void CursorIsCorrectAtEnd()
{
var reader = new ReadOnlyBufferReader(Factory.CreateWithContent(new byte[] { 1, 2 }));
reader.Take();
reader.Take();
Assert.True(reader.End);
}
public void TakeTraversesSegments()
{
var buffer = Factory.CreateWithContent(new byte[] { 1, 2, 3 });
var reader = new ReadOnlyBufferReader(buffer);
Assert.Equal(1, reader.Take());
Assert.Equal(2, reader.Take());
Assert.Equal(3, reader.Take());
Assert.Equal(-1, reader.Take());
}
public void TakeReturnsByteAndMoves()
{
var reader = new ReadOnlyBufferReader(Factory.CreateWithContent(new byte[] { 1, 2 }));
Assert.Equal(0, reader.Index);
Assert.Equal(1, reader.Span[reader.Index]);
Assert.Equal(1, reader.Take());
Assert.Equal(1, reader.Index);
Assert.Equal(2, reader.Span[reader.Index]);
Assert.Equal(2, reader.Take());
Assert.Equal(-1, reader.Take());
}
public void PeekWorkesWithEmptySegments()
{
var buffer = Factory.CreateWithContent(new byte[] { 1 });
var reader = new ReadOnlyBufferReader(buffer);
Assert.Equal(0, reader.Index);
Assert.Equal(1, reader.Span.Length);
Assert.Equal(1, reader.Peek());
Assert.Equal(1, reader.Take());
Assert.Equal(-1, reader.Peek());
Assert.Equal(-1, reader.Take());
}
public void PeekTraversesSegments()
{
var buffer = Factory.CreateWithContent(new byte[] { 1, 2 });
var reader = new ReadOnlyBufferReader(buffer);
Assert.Equal(1, reader.Span[reader.Index]);
Assert.Equal(1, reader.Take());
Assert.Equal(2, reader.Span[reader.Index]);
Assert.Equal(2, reader.Peek());
Assert.Equal(2, reader.Take());
Assert.Equal(-1, reader.Peek());
Assert.Equal(-1, reader.Take());
}
public void WorkesWithEmptyBuffer()
{
var reader = new ReadOnlyBufferReader(Factory.CreateWithContent(new byte[] { }));
Assert.Equal(0, reader.Index);
Assert.Equal(0, reader.Span.Length);
Assert.Equal(-1, reader.Peek());
Assert.Equal(-1, reader.Take());
}
public void SkipTraversesSegments()
{
var buffer = Factory.CreateWithContent(new byte[] { 1, 2, 3 });
var reader = new ReadOnlyBufferReader(buffer);
reader.Skip(2);
Assert.Equal(3, reader.Span[reader.Index]);
Assert.Equal(3, reader.Take());
}
public void ReturnsCorrectCursor(int takes, bool end)
{
var readableBuffer = Factory.CreateWithContent(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 });
var reader = new ReadOnlyBufferReader(readableBuffer);
for (int i = 0; i < takes; i++)
{
reader.Take();
}
var expected = end ? new byte[] {} : readableBuffer.Slice(takes).ToArray();
Assert.Equal(expected, readableBuffer.Slice(reader.Cursor).ToArray());
}
public void CursorIsCorrectWithEmptyLastBlock()
{
var last = new BufferSegment();
last.SetMemory(new OwnedArray <byte>(new byte[4]), 0, 4);
var first = new BufferSegment();
first.SetMemory(new OwnedArray <byte>(new byte[] { 1, 2 }), 0, 2);
first.SetNext(last);
var start = new Position(first, first.Start);
var end = new Position(last, last.Start);
var reader = new ReadOnlyBufferReader(new ReadOnlyBuffer(start, end));
reader.Take();
reader.Take();
reader.Take();
Assert.Same(last, reader.Cursor.Segment);
Assert.Equal(0, reader.Cursor.Index);
Assert.True(reader.End);
}
