public void MultiSegmentPositionSlicing()
{
var array1 = new byte[] { 0, 1 };
var array2 = new byte[] { 2, 3 };
ReadOnlyBytes allBytes = ListHelper.CreateRob(array1, array2);
ReadOnlyBytes allBytesSlice1 = allBytes.Slice(1);
ReadOnlyBytes allBytesSlice2 = allBytes.Slice(2);
ReadOnlyBytes allBytesSlice3 = allBytes.Slice(3);
var positionOf3 = allBytes.PositionOf(3).GetValueOrDefault();
var positionOf1 = allBytes.PositionOf(1).GetValueOrDefault();
// all bytes
{
var slice = allBytes.Slice(positionOf3);
Assert.Equal(1, slice.Length);
Assert.Equal(3, slice.Memory.Span[0]);
}
{
var slice = allBytes.Slice(positionOf1);
Assert.Equal(3, slice.Length);
Assert.Equal(1, slice.Memory.Span[0]);
}
// allBytesSlice1
{
var slice = allBytesSlice1.Slice(positionOf3);
Assert.Equal(1, slice.Length);
Assert.Equal(3, slice.Memory.Span[0]);
}
{
var slice = allBytesSlice1.Slice(positionOf1);
Assert.Equal(3, slice.Length);
Assert.Equal(1, slice.Memory.Span[0]);
}
// allBytesSlice2
{
var slice = allBytesSlice2.Slice(positionOf3);
Assert.Equal(1, slice.Length);
Assert.Equal(3, slice.Memory.Span[0]);
}
{
var slice = allBytesSlice2.Slice(positionOf1);
Assert.Equal(3, slice.Length);
Assert.Equal(1, slice.Memory.Span[0]);
}
// allBytesSlice3
{
var slice = allBytesSlice3.Slice(positionOf3);
Assert.Equal(1, slice.Length);
Assert.Equal(3, slice.Memory.Span[0]);
}
{
var slice = allBytesSlice3.Slice(positionOf1);
Assert.Equal(3, slice.Length);
Assert.Equal(1, slice.Memory.Span[0]);
}
}
