# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2019-01-09 06:07:47
# Node ID 89d103fc9c196964fe4b623206ba5b3a0f086977
# Parent  92a5fb73b3d583fbe29768777093bd44cd926794

testrunner: avoid capturing a regex group we don't care about

Differential Revision: https://phab.mercurial-scm.org/D5536

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -2786,7 +2786,8 @@ class TestRunner(object):
                 expanded_args.append(arg)
         args = expanded_args
 
-        testcasepattern = re.compile(br'([\w-]+\.t|py)(#([a-zA-Z0-9_\-\.#]+))')
+        testcasepattern = re.compile(
+            br'([\w-]+\.t|py)(?:#([a-zA-Z0-9_\-\.#]+))')
         tests = []
         for t in args:
             case = []
@@ -2796,7 +2797,7 @@ class TestRunner(object):
 
                 m = testcasepattern.match(os.path.basename(t))
                 if m is not None:
-                    t_basename, _, casestr = m.groups()
+                    t_basename, casestr = m.groups()
                     t = os.path.join(os.path.dirname(t), t_basename)
                     if casestr:
                         case = casestr.split(b'#')