Pass --retag in mx python-retag-unittests

Author: msimacek

graalpython/com.oracle.graal.python.test/src/tests/test_tagged_unittests.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # The Universal Permissive License (UPL), Version 1.0
@@ -106,8 +106,8 @@ def fun(self):
     import re
 
     executable = sys.executable.split(" ") # HACK: our sys.executable on Java is a cmdline
-    re_success = re.compile("(test\S+) \(([^\s]+)\) \.\.\. ok$", re.MULTILINE)
-    re_failure = re.compile("(test\S+) \(([^\s]+)\) \.\.\. (?:ERROR|FAIL)$", re.MULTILINE)
+    re_success = re.compile(r"(test\S+) \(([^\s]+)\) \.\.\. ok$", re.MULTILINE)
+    re_failure = re.compile(r"(test\S+) \(([^\s]+)\) \.\.\. (?:ERROR|FAIL)$", re.MULTILINE)
     kwargs = {"stdout": subprocess.PIPE, "stderr": subprocess.PIPE, "text": True, "check": False}
 
     glob_pattern = os.path.join(os.path.dirname(test.__file__), "test_*.py")

mx.graalpython/mx_graalpython.py

@@ -221,7 +221,7 @@ def python3_unittests(args):
 def retag_unittests(args):
     """run the cPython stdlib unittests"""
     with set_env(ENABLE_CPYTHON_TAGGED_UNITTESTS="true"):
-        python(["graalpython/com.oracle.graal.python.test/src/tests/test_tagged_unittests.py"] + args)
+        python(["graalpython/com.oracle.graal.python.test/src/tests/test_tagged_unittests.py", '--retag'] + args)
 
 
 AOT_INCOMPATIBLE_TESTS = ["test_interop.py"]