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-rw-r--r--contrib/python/wcwidth/py3/tests/test_core.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/contrib/python/wcwidth/py3/tests/test_core.py b/contrib/python/wcwidth/py3/tests/test_core.py
index 882b2eafc32..9d5007571b1 100644
--- a/contrib/python/wcwidth/py3/tests/test_core.py
+++ b/contrib/python/wcwidth/py3/tests/test_core.py
@@ -497,6 +497,12 @@ def test_zwj_at_end_of_string():
assert wcwidth.wcswidth('a\u200D') == 1
+def test_wcswidth_n_exceeds_length():
+ """Verify wcswidth() with n > len(string) does not raise IndexError."""
+ assert wcwidth.wcswidth('hello', n=999) == 5
+ assert wcwidth.wcswidth('\u30B3\u30F3', n=999) == 4
+
+
def test_soft_hyphen():
# Test SOFT HYPHEN, category 'Cf' usually are zero-width, but most
# implementations agree to draw it was '1' cell, visually