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-rw-r--r--Lib/test/test_strop.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/Lib/test/test_strop.py b/Lib/test/test_strop.py
index de7a795..9130088 100644
--- a/Lib/test/test_strop.py
+++ b/Lib/test/test_strop.py
@@ -77,7 +77,9 @@ test('replace', 'one!two!three!', 'one@two!three!', '!', '@', 1)
test('replace', 'one!two!three!', 'one@two@three!', '!', '@', 2)
test('replace', 'one!two!three!', 'one@two@three@', '!', '@', 3)
test('replace', 'one!two!three!', 'one@two@three@', '!', '@', 4)
-test('replace', 'one!two!three!', 'one!two!three!', '!', '@', 0)
+# CAUTION: a replace count of 0 means infinity only to strop, not to the
+# string .replace() method or to the string.replace() function.
+test('replace', 'one!two!three!', 'one@two@three@', '!', '@', 0)
test('replace', 'one!two!three!', 'one@two@three@', '!', '@')
test('replace', 'one!two!three!', 'one!two!three!', 'x', '@')
test('replace', 'one!two!three!', 'one!two!three!', 'x', '@', 2)