Simplify assertion.

Bug: None
Change-Id: I23830c5fe91af2e6ae736176c75b6d64270111d5
No-Try: True
Reviewed-on: https://webrtc-review.googlesource.com/96241
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24455}
diff --git a/tools_webrtc/gtest_parallel_wrapper_test.py b/tools_webrtc/gtest_parallel_wrapper_test.py
index e731d92..364fc89 100755
--- a/tools_webrtc/gtest_parallel_wrapper_test.py
+++ b/tools_webrtc/gtest_parallel_wrapper_test.py
@@ -70,8 +70,7 @@
                             '--test_artifacts_dir=' + exp_artifacts_dir])
       self.assertEqual(result.gtest_parallel_args, exp)
       self.assertEqual(result.output_dir, output_dir)
-      self.assertRegexpMatches(result.test_artifacts_dir,
-                               output_dir + '.test_artifacts')
+      self.assertEqual(result.test_artifacts_dir, exp_artifacts_dir)
 
   def testNoDirsSpecified(self):
     result = script.ParseArgs(['exec'])