public void ShouldThrowExceptionWhenTheresNoBytesToPeek()
{
var mockInput = IOExtensions.CreateMockStream(new byte[0]);
var reader = new PackStreamReader(mockInput.Object, BoltReader.StructHandlers);
var ex = Record.Exception(() => reader.PeekByte());
ex.Should().BeOfType <ProtocolException>();
mockInput.Verify(x => x.Length, Times.Once);
mockInput.Verify(x => x.Position, Times.Once);
mockInput.Verify(x => x.Seek(-1, SeekOrigin.Current), Times.Never);
}
public void ShouldPeekCorrectly()
{
const byte expected = 1;
var mockInput = IOExtensions.CreateMockStream(1, 2, 3);
var reader = new PackStreamReader(mockInput.Object, BoltReader.StructHandlers);
var real = reader.PeekByte();
real.Should().Be(expected);
mockInput.Verify(x => x.ReadByte(), Times.Once);
mockInput.Verify(x => x.Length, Times.Once);
mockInput.Verify(x => x.Position, Times.Once);
mockInput.Verify(x => x.Seek(-1, SeekOrigin.Current), Times.Once);
}