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| -rw-r--r-- | Lib/unittest/case.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py index 0ad78571b2..6752e7a895 100644 --- a/Lib/unittest/case.py +++ b/Lib/unittest/case.py @@ -1121,6 +1121,7 @@ class TestCase(object): def assertRegex(self, text, expected_regex, msg=None): """Fail the test unless the text matches the regular expression.""" if isinstance(expected_regex, (str, bytes)): + assert expected_regex, "expected_regex must not be empty." expected_regex = re.compile(expected_regex) if not expected_regex.search(text): msg = msg or "Regex didn't match" |