[pitivi] tests_: validate: Handle testsuite loading failures

[Thibault Saunier <tsaunier src gnome org>]

commit 247900a88cc7fcbf76d5d67c99a6b12cf6c0d8e8
Author: Thibault Saunier <tsaunier gnome org>
Date:   Sat Jul 15 00:55:21 2017 -0400

    tests_: validate: Handle testsuite loading failures
    
    Avoiding backtrace when a testsuite file has synthax issue, and
    allowing use to know about the backtrace generated when loading
    that testsuite file.
    
    Reviewed-by: Alex Băluț <<alexandru balut gmail com>>
    Differential Revision: https://phabricator.freedesktop.org/D1782

 tests/ptv_testsuite.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/tests/ptv_testsuite.py b/tests/ptv_testsuite.py
index d53e568..ee3c236 100644
--- a/tests/ptv_testsuite.py
+++ b/tests/ptv_testsuite.py
@@ -49,6 +49,9 @@ def setup_tests(test_manager, options):
     testsuites = loader.discover(CDIR)
     for testsuite in testsuites:
         for _tests in testsuite:
+            if isinstance(_tests, unittest.loader._FailedTest):
+                print(_tests._exception)
+                continue
             for test in _tests:
                 test_manager.add_test(PitiviTest(
                     sys.executable,