[tor-commits] [stem/master] Print full stacktrace when a test fails to import

[atagar at torproject.org]

commit b005d31362ddf6ba0d87d26482a596cf4a3dd475
Author: Damian Johnson <atagar at torproject.org>
Date:   Sun Feb 25 16:16:16 2018 -0800

    Print full stacktrace when a test fails to import
    
    Our tests preemptively import test modules so asynchronous tasks can register
    themselves. However, an import raises an exception then we only printed the
    error message, not the stacktrace complicating troubleshooting.
---
 test/task.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/task.py b/test/task.py
index 20841be5..b28833bd 100644
--- a/test/task.py
+++ b/test/task.py
@@ -26,6 +26,7 @@ import os
 import re
 import sys
 import time
+import traceback
 
 import stem
 import stem.prereq
@@ -92,7 +93,10 @@ def _import_tests():
     return
 
   for module in (CONFIG['test.unit_tests'].splitlines() + CONFIG['test.integ_tests'].splitlines()):
-    importlib.import_module(module.rsplit('.', 1)[0])
+    try:
+      importlib.import_module(module.rsplit('.', 1)[0])
+    except Exception as exc:
+      raise ImportError(traceback.format_exc())
 
 
 def _check_for_unused_tests(paths):