Merge pull request RustPython#3827 from deantvv/test-io-3-10

test: update test_io.py to 3.10

Author: youknowone

Lib/test/test_io.py

@@ -28,6 +28,7 @@
 import random
 import signal
 import sys
+import sysconfig
 import textwrap
 import threading
 import time
@@ -43,7 +44,6 @@
 from test.support import os_helper
 from test.support import threading_helper
 from test.support import warnings_helper
-from test.support import skip_if_sanitizer
 from test.support.os_helper import FakePath
 
 import codecs
@@ -66,6 +66,17 @@ def byteslike(*pos, **kw):
     class EmptyStruct(ctypes.Structure):
         pass
 
+_cflags = sysconfig.get_config_var('CFLAGS') or ''
+_config_args = sysconfig.get_config_var('CONFIG_ARGS') or ''
+MEMORY_SANITIZER = (
+    '-fsanitize=memory' in _cflags or
+    '--with-memory-sanitizer' in _config_args
+)
+
+ADDRESS_SANITIZER = (
+    '-fsanitize=address' in _cflags
+)
+
 # Does io.IOBase finalizer log the exception if the close() method fails?
 # The exception is ignored silently by default in release build.
 IOBASE_EMITS_UNRAISABLE = (hasattr(sys, "gettotalrefcount") or sys.flags.dev_mode)
@@ -1549,7 +1560,7 @@ class CBufferedReaderTest(BufferedReaderTest, SizeofTest):
     tp = io.BufferedReader
 
     @unittest.skip("TODO: RUSTPYTHON, fallible allocation")
-    @skip_if_sanitizer(memory=True, address=True, reason= "sanitizer defaults to crashing "
+    @unittest.skipIf(MEMORY_SANITIZER or ADDRESS_SANITIZER, "sanitizer defaults to crashing "
                      "instead of returning NULL for malloc failure.")
     def test_constructor(self):
         BufferedReaderTest.test_constructor(self)
@@ -1931,7 +1942,7 @@ class CBufferedWriterTest(BufferedWriterTest, SizeofTest):
     tp = io.BufferedWriter
 
     @unittest.skip("TODO: RUSTPYTHON, fallible allocation")
-    @skip_if_sanitizer(memory=True, address=True, reason= "sanitizer defaults to crashing "
+    @unittest.skipIf(MEMORY_SANITIZER or ADDRESS_SANITIZER, "sanitizer defaults to crashing "
                      "instead of returning NULL for malloc failure.")
     def test_constructor(self):
         BufferedWriterTest.test_constructor(self)
@@ -2438,7 +2449,7 @@ class CBufferedRandomTest(BufferedRandomTest, SizeofTest):
     tp = io.BufferedRandom
 
     @unittest.skip("TODO: RUSTPYTHON, fallible allocation")
-    @skip_if_sanitizer(memory=True, address=True, reason= "sanitizer defaults to crashing "
+    @unittest.skipIf(MEMORY_SANITIZER or ADDRESS_SANITIZER, "sanitizer defaults to crashing "
                      "instead of returning NULL for malloc failure.")
     def test_constructor(self):
         BufferedRandomTest.test_constructor(self)