python · serhiy-storchaka · Mar 19, 2017 · Mar 19, 2017 · Mar 19, 2017
diff --git a/Lib/ctypes/test/test_structures.py b/Lib/ctypes/test/test_structures.py
@@ -2,8 +2,8 @@
 from ctypes import *
 from ctypes.test import need_symbol
 from struct import calcsize
-import _testcapi
 import _ctypes_test
+import test.support

 class SubclassesTest(unittest.TestCase):
    def test_subclass(self):
@@ -202,7 +202,10 @@ class X(Structure):
             "_pack_": -1}
        self.assertRaises(ValueError, type(Structure), "X", (Structure,), d)

+    @test.support.cpython_only
+    def test_packed_c_limits(self):
        # Issue 15989
+        import _testcapi
        d = {"_fields_": [("a", c_byte)],
             "_pack_": _testcapi.INT_MAX + 1}
        self.assertRaises(ValueError, type(Structure), "X", (Structure,), d)

diff --git a/Lib/test/test_atexit.py b/Lib/test/test_atexit.py
@@ -143,6 +143,7 @@ def test_bound_methods(self):
        self.assertEqual(l, [5])


+@support.cpython_only
 class SubinterpreterTest(unittest.TestCase):

    def test_callbacks_leak(self):

diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
@@ -1772,6 +1772,7 @@ def wrap(gen):
            sys.set_coroutine_wrapper(None)


+@support.cpython_only
 class CAPITest(unittest.TestCase):

    def test_tp_await_1(self):

diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
@@ -876,6 +876,7 @@ def testNtoH(self):
            self.assertEqual(swapped & mask, mask)
            self.assertRaises(OverflowError, func, 1<<34)

+    @support.cpython_only
    def testNtoHErrors(self):
        good_values = [ 1, 2, 3, 1, 2, 3 ]
        bad_values = [ -1, -2, -3, -1, -2, -3 ]

diff --git a/Lib/test/test_tracemalloc.py b/Lib/test/test_tracemalloc.py
@@ -809,6 +809,7 @@ def test_sys_xoptions_invalid(self):
                                  b'number of frames',
                                  stderr)

+    @support.cpython_only
    def test_pymem_alloc0(self):
        # Issue #21639: Check that PyMem_Malloc(0) with tracemalloc enabled
        # does not crash.