python
diff --git a/‎Lib/test/test_decimal.py
Lines changed: 1 addition & 47 deletions b/‎Lib/test/test_decimal.py
Lines changed: 1 addition & 47 deletions
diff --git a/‎Lib/test/test_io.py
Lines changed: 1 addition & 50 deletions b/‎Lib/test/test_io.py
Lines changed: 1 addition & 50 deletions
@@ -34,12 +34,10 @@
 import locale
 from test.support import (is_resource_enabled,
                           requires_IEEE_754, requires_docstrings,
-                          check_sanitizer,
                           check_disallow_instantiation)
 from test.support import (TestFailed,
                           run_with_locale, cpython_only,
-                          darwin_malloc_err_warning, is_emscripten,
-                          skip_on_s390x
8000
)
+                          darwin_malloc_err_warning)
 from test.support.import_helper import import_fresh_module
 from test.support import threading_helper
 from test.support import warnings_helper
@@ -5644,50 +5642,6 @@ def __abs__(self):
             self.assertEqual(Decimal.from_float(cls(101.1)),
                              Decimal.from_float(101.1))
 
-    # Issue 41540:
-    @unittest.skipIf(sys.platform.startswith("aix"),
-                     "AIX: default ulimit: test is flaky because of extreme over-allocation")
-    @unittest.skipIf(is_emscripten, "Test is unstable on Emscripten")
-    @unittest.skipIf(check_sanitizer(address=True, memory=True),
-                     "ASAN/MSAN sanitizer defaults to crashing "
-                     "instead of returning NULL for malloc failure.")
-    # gh-114331: The test allocates 784 271 641 GiB and mimalloc does not fail
-    # to allocate it when using mimalloc on s390x.
-    @skip_on_s390x
-    def test_maxcontext_exact_arith(self):
-
-        # Make sure that exact operations do not raise MemoryError due
-        # to huge intermediate values when the context precision is very
-        # large.
-
-        # The following functions fill the available precision and are
-        # therefore not suitable for large precisions (by design of the
-        # specification).
-        MaxContextSkip = ['logical_invert', 'next_minus', 'next_plus',
-                          'logical_and', 'logical_or', 'logical_xor',
-                          'next_toward', 'rotate', 'shift']
-
-        Decimal = C.Decimal
-        Context = C.Context
-        localcontext = C.localcontext
-
-        # Here only some functions that are likely candidates for triggering a
-        # MemoryError are tested.  deccheck.py has an exhaustive test.
-        maxcontext = Context(prec=C.MAX_PREC, Emin=C.MIN_EMIN, Emax=C.MAX_EMAX)
-        with localcontext(maxcontext):
-            self.assertEqual(Decimal(0).exp(), 1)
-            self.assertEqual(Decimal(1).ln(), 0)
-            self.assertEqual(Decimal(1).log10(), 0)
-            self.assertEqual(Decimal(10**2).log10(), 2)
-            self.assertEqual(Decimal(10**223).log10(), 223)
-            self.assertEqual(Decimal(10**19).logb(), 19)
-            self.assertEqual(Decimal(4).sqrt(), 2)
-            self.assertEqual(Decimal("40E9").sqrt(), Decimal('2.0E+5'))
-            self.assertEqual(divmod(Decimal(10), 3), (3, 1))
-            self.assertEqual(Decimal(10) // 3, 3)
-            self.assertEqual(Decimal(4) / 2, 2)
-            self.assertEqual(Decimal(400) ** -1, Decimal('0.0025'))
-
     def test_c_immutable_types(self):
         SignalDict = type(C.Context().flags)
         SignalDictMixin = SignalDict.__bases__[0]
 
@@ -40,8 +40,7 @@
 from test.support.script_helper import (
     assert_python_ok, assert_python_failure, run_python_until_end)
 from test.support import (
-    import_helper, is_apple, os_helper, skip_if_sanitizer, threading_helper, warnings_helper,
-    skip_on_s390x
+    import_helper, is_apple, os_helper, threading_helper, warnings_helper,
 )
 from test.support.os_helper import FakePath
 
@@ -1698,22 +1697,6 @@ def test_seek_character_device_file(self):
 class CBufferedReaderTest(BufferedReaderTest, SizeofTest):
     tp = io.BufferedReader
 
-    @skip_if_sanitizer(memory=True, address=True, thread=True,
-                       reason="sanitizer defaults to crashing "
-                       "instead of returning NULL for malloc failure.")
-    # gh-117755: The test allocates 9 223 372 036 854 775 807 bytes
-    # (0x7fffffffffffffff) and mimalloc fails with a division by zero on s390x.
-    @skip_on_s390x
-    def test_constructor(self):
-        BufferedReaderTest.test_constructor(self)
-        # The allocation can succeed on 32-bit builds, e.g. with more
-        # than 2 GiB RAM and a 64-bit kernel.
-        if sys.maxsize > 0x7FFFFFFF:
-            rawio = self.MockRawIO()
-            bufio = self.tp(rawio)
-            self.assertRaises((OverflowError, MemoryError, ValueError),
-                bufio.__init__, rawio, sys.maxsize)
-
     def test_initialization(self):
         rawio = self.MockRawIO([b"abc"])
         bufio = self.tp(rawio)
@@ -2069,22 +2052,6 @@ def test_slow_close_from_thread(self):
 class CBufferedWriterTest(BufferedWriterTest, SizeofTest):
     tp = io.BufferedWriter
 
-    @skip_if_sanitizer(memory=True, address=True, thread=True,
-                       reason="sanitizer defaults to crashing "
-                       "instead of returning NULL for malloc failure.")
-    # gh-117755: The test allocates 9 223 372 036 854 775 807 bytes
-    # (0x7fffffffffffffff) and mimalloc fails with a division by zero on s390x.
-    @skip_on_s390x
-    def test_constructor(self):
-        BufferedWriterTest.test_constructor(self)
-        # The allocation can succeed on 32-bit builds, e.g. with more
-        # than 2 GiB RAM and a 64-bit kernel.
-        if sys.maxsize > 0x7FFFFFFF:
-            rawio = self.MockRawIO()
-            bufio = self.tp(rawio)
-            self.assertRaises((OverflowError, MemoryError, ValueError),
-                bufio.__init__, rawio, sys.maxsize)
-
     def test_initialization(self):
         rawio = self.MockRawIO()
         bufio = self.tp(rawio)
@@ -2594,22 +2561,6 @@ def test_interleaved_readline_write(self):
 class CBufferedRandomTest(BufferedRandomTest, SizeofTest):
     tp = io.BufferedRandom
 
-    @skip_if_sanitizer(memory=True, address=True, thread=True,
-                       reason="sanitizer defaults to crashing "
-                       "instead of returning NULL for malloc failure.")
-    # gh-117755: The test allocates 9 223 372 036 854 775 807 bytes
-    # (0x7fffffffffffffff) and mimalloc fails with a division by zero on s390x.
-    @skip_on_s390x
-    def test_constructor(self):
-        BufferedRandomTest.test_constructor(self)
-        # The allocation can succeed on 32-bit builds, e.g. with more
-        # than 2 GiB RAM and a 64-bit kernel.
-        if sys.maxsize > 0x7FFFFFFF:
-            rawio = self.MockRawIO()
-            bufio = self.tp(rawio)
-            self.assertRaises((OverflowError, MemoryError, ValueError),
-                bufio.__init__, rawio, sys.maxsize)
-
     def test_garbage_collection(self):
         CBufferedReaderTest.test_garbage_collection(self)
         CBufferedWriterTest.test_garbage_collection(self)