commit 50721026aec325dbba12f8df65e8f2be9ac432fe
author Kuang-che Wu <kcwu@chromium.org> Thu Aug 22 17:38:32 2019 +0800
committer chrome-bot <chrome-bot@chromium.org> Thu Aug 22 05:11:36 2019 -0700
tree 4397f680478afacf55c7538da2b16e8f60662bad
parent 6ecc5658656546f1c18bc997ea2fca53510aeb12

bisect-kit: add assertion message when analyzing commit history failed

BUG=None
TEST=None

Change-Id: If32bc84f4575ec983201c88705041ae9d20f10f3
Reviewed-on: https://chromium-review.googlesource.com/1765268
Tested-by: Kuang-che Wu <kcwu@chromium.org>
Commit-Ready: Chi-Ngai Wan <cnwan@google.com>
Commit-Ready: Kuang-che Wu <kcwu@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Chi-Ngai Wan <cnwan@google.com>

bisect_kit/codechange.py

diff --git a/bisect_kit/codechange.py b/bisect_kit/codechange.py
index 80dbc0d..b70f0a2 100644
--- a/bisect_kit/codechange.py
+++ b/bisect_kit/codechange.py
@@ -809,7 +809,7 @@
       if matched_index is None:
         if i in (0, len(fixed_specs) - 1):
           logger.error('essential spec mismatch, unable to continue')
-          assert 0
+          assert 0, 'Bisector cannot deal with this version range.'
         else:
           logger.warning('%s do not match, skip', fixed_spec.name)
         continue