Unittest - Enhanced support for testing hooks (wip)

* It is now possible to test:
  * Hook Input/Output on STDIN/STDOUT channels
  * Exit code of hook script
  * Execution count (how many times the hook was executed)
  * Timestamp execution (when was the hook executed - milisec resolution)

test/basetest/taskd.py

@@ -8,7 +8,7 @@ import atexit
 from time import sleep
 from subprocess import Popen
 from .utils import (find_unused_port, release_port, port_used, run_cmd_wait,
-                    which, parse_datafile, CURRENT_DIR, binary_location)
+                    which, parse_datafile, DEFAULT_CERT_PATH, binary_location)
 from .exceptions import CommandError
 
 try:
@@ -16,11 +16,6 @@ try:
 except ImportError:
     DEVNULL = open(os.devnull, 'w')
 
-# Directory relative to basetest module location
-DEFAULT_CERT_PATH = os.path.abspath(
-    os.path.join(CURRENT_DIR, "..", "test_certs")
-)
-
 
 class Taskd(object):
     """Manage a taskd instance