public void Length(Int32 expectedBitLength, Byte bitOffset, Int32 bytesCount)
{
Span <Byte> bytes = stackalloc Byte[bytesCount];
var bitSpan = new BitSpan(bytes, bitOffset);
Assert.Equal(expectedBitLength, bitSpan.Length);
}
public void LengthThrows(Byte bitOffset, Int32 bytesCount)
{
Assert.Throws <ArgumentOutOfRangeException>(() => {
Span <Byte> bytes = stackalloc Byte[bytesCount];
var bitSpan = new BitSpan(bytes, bitOffset);
var length = bitSpan.Length;
});
}
public void ToString_(Byte bitOffset)
{
Span <Byte> bytes = stackalloc Byte[] { 0b0000_0001, 0b0000_0000, 0b0000_0000, 0b0100_0000 };
var integer = MemoryMarshal.Read <UInt32>(bytes);
var expected = Convert.ToString(integer, 2).PadRight(32, '0').Substring(bitOffset);
var bitSpan = new BitSpan(bytes, bitOffset);
var actual = bitSpan.ToString();
Assert.Equal(expected, actual);
}
public void IsEmpty()
{
var bitSpan = BitSpan.Empty;
Assert.True(bitSpan.IsEmpty);
bitSpan = new BitSpan();
Assert.True(bitSpan.IsEmpty);
bitSpan = default;
Assert.True(bitSpan.IsEmpty);
Assert.Throws <ArgumentException>(() => {
Span <Byte> bytes = stackalloc Byte[1];
var bitSpan2 = new BitSpan(bytes, 0);
});
}
