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-rw-r--r--Lib/test/test_bytes.py18
1 files changed, 16 insertions, 2 deletions
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
index 8c9d17f..8b19732 100644
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -126,8 +126,8 @@ class BaseBytesTest:
a = self.type2test(b"\x01\x02\x03")
self.assertEqual(a, b"\x01\x02\x03")
- # http://bugs.python.org/issue29159
- # Fallback when __index__ raises exception other than OverflowError
+ # Issues #29159 and #34974.
+ # Fallback when __index__ raises a TypeError
class B(bytes):
def __index__(self):
raise TypeError
@@ -184,6 +184,20 @@ class BaseBytesTest:
except (OverflowError, MemoryError):
pass
+ def test_constructor_exceptions(self):
+ # Issue #34974: bytes and bytearray constructors replace unexpected
+ # exceptions.
+ class BadInt:
+ def __index__(self):
+ 1/0
+ self.assertRaises(ZeroDivisionError, self.type2test, BadInt())
+ self.assertRaises(ZeroDivisionError, self.type2test, [BadInt()])
+
+ class BadIterable:
+ def __iter__(self):
+ 1/0
+ self.assertRaises(ZeroDivisionError, self.type2test, BadIterable())
+
def test_compare(self):
b1 = self.type2test([1, 2, 3])
b2 = self.type2test([1, 2, 3])