test/chip: Implement

test/internal/fd: Implement

makefile: Fix code coverage stats

internal/fd: Make it possible to not own the original fd

internal/fd: Destructors cannot take exceptions

example/pulse: Don't core dump on error

Allowing the defult c++ error handler works to display the error but it
also throws a SIGABRT which triggers coredump logic on the machine
running the example.

src: Add missing mock sys interface

configure: Fix building with --disable-tests

example/pulse: Implement

Basic Functionality

Initial Commit