public void AccessBackingBytes_should_return_expected_result_when_there_are_zero_chunks() { var mockChunkSource = new Mock<IBsonChunkSource>(); var subject = new MultiChunkBuffer(mockChunkSource.Object); var result = subject.AccessBackingBytes(0); result.Array.Should().HaveCount(0); result.Offset.Should().Be(0); result.Count.Should().Be(0); }