CSIT-1139: Implement parallel test execution

The implementation of parallel test execution in VPP Test Framework.
- VPPTestCase test methods are grouped together
- tests are running in separate processes
- VPP instances spawned by tests are assigned to different cores
- output from these processes is redirected through pipes and printed
out testcase by testcase
- TEST_JOBS env var is used to specify the number of parallel processes
- improved test summary
- a bit of code cleanup

Change-Id: I9ca93904d9fe2c3daf980500c64a8611838ae28c
Signed-off-by: juraj.linkes <juraj.linkes@pantheon.tech>

1 files changed, 5 insertions, 5 deletions

diff --git a/test/hook.py b/test/hook.py
index 0e94dcde135..d7bfef6c101 100644
--- a/test/hook.py
+++ b/test/hook.py
@@ -176,19 +176,19 @@ class StepHook(PollHook):
             print('%02d.\t%s\t%s:%d\t[%s]' % (counter, e[2], e[0], e[1], e[3]))
             counter += 1
         print(single_line_delim)
-        print("You can enter a number of stack frame chosen from above")
+        print("You may enter a number of stack frame chosen from above")
         print("Calls in/below that stack frame will be not be stepped anymore")
         print(single_line_delim)
         while True:
-            choice = sys.stdin.readline(
-                "Enter your choice, if any, and press ENTER to continue "
-                "running the testcase...")
+            print("Enter your choice, if any, and press ENTER to continue "
+                  "running the testcase...")
+            choice = sys.stdin.readline()
             if choice == "":
                 choice = None
             try:
                 if choice is not None:
                     num = int(choice)
-            except TypeError:
+            except ValueError:
                 print("Invalid input")
                 continue
             if choice is not None and (num < 0 or num >= len(stack)):