FS-7820

C level unit testing and micro benchmarking framework, including one
example unit test.

tests/unit/README

@@ -0,0 +1,18 @@
+FreeSWITCH unit tests should be kept as shallow unit tests and micro
+benchmarks testing functionality exposed through libfreeswitch.
+
+Requirements for a new unit tests: 
+
+1. Tests must use TAP(Test Anything Protocol) output format, and must
+print to stderr the summary statistics of the test before exiting.
+
+2. Each test must return 0 on successful completion, or a non-zero
+result in case of a failure.
+
+3. Benchmarking stats should be output as a TAP note at the end of the
+test in a human and machine(regex) parsable format
+
+Use libtap from https://github.com/zorgnax/libtap
+cd /usr/local/src/
+git clone https://github.com/zorgnax/libtap.git
+make PREFIX=/usr install