Backport PR #13270: Add Xfail test on 3.9.8

IPython/core/tests/test_inputsplitter.py

@@ -14,6 +14,7 b' from IPython.core import inputsplitter as isp'
 from IPython.core.inputtransformer import InputTransformer
 from IPython.core.tests.test_inputtransformer import syntax, syntax_ml
 from IPython.testing import tools as tt
+from IPython.testing.decorators import skipif
 
 #-----------------------------------------------------------------------------
 # Semi-complete examples (also used as tests)
@@ -323,6 +324,7 b' class InputSplitterTestCase(unittest.TestCase):'
         self.isp.push(u'\xc3\xa9')
         self.isp.push(u"u'\xc3\xa9'")
 
+    @skipif(sys.version_info[:3] == (3, 9, 8))
     def test_line_continuation(self):
         """ Test issue #2108."""
         isp = self.isp

IPython/core/tests/test_inputtransformer2.py

@@ -6,11 +6,14 b' transformations.'
 """
 import nose.tools as nt
 import string
+import sys
+from textwrap import dedent
 
-from IPython.core import inputtransformer2 as ipt2
-from IPython.core.inputtransformer2 import make_tokens_by_line, _find_assign_op
+import pytest
 
-from textwrap import dedent
+from IPython.core import inputtransformer2 as ipt2
+from IPython.core.inputtransformer2 import _find_assign_op, make_tokens_by_line
+from IPython.testing.decorators import skip
 
 MULTILINE_MAGIC = ("""\
 a = f()
@@ -253,20 +256,38 b' def test_find_assign_op_dedent():'
     nt.assert_equal(_find_assign_op([Tk(s) for s in ('','a','=','b')]), 2)
     nt.assert_equal(_find_assign_op([Tk(s) for s in ('','(', 'a','=','b', ')', '=' ,'5')]), 6)
 
+examples = [
+    pytest.param("a = 1", "complete", None),
+    pytest.param("for a in range(5):", "incomplete", 4),
+    pytest.param("for a in range(5):\n    if a > 0:", "incomplete", 8),
+    pytest.param("raise = 2", "invalid", None),
+    pytest.param("a = [1,\n2,", "incomplete", 0),
+    pytest.param("(\n))", "incomplete", 0),
+    pytest.param("\\\r\n", "incomplete", 0),
+    pytest.param("a = '''\n   hi", "incomplete", 3),
+    pytest.param("def a():\n x=1\n global x", "invalid", None),
+    pytest.param(
+        "a \\ ",
+        "invalid",
+        None,
+        marks=pytest.mark.xfail(
+            reason="Bug in python 3.9.8 – bpo 45738",
+            condition=sys.version_info[:3] == (3, 9, 8),
+            raises=SystemError,
+            strict=True,
+        ),
+    ),  # Nothing allowed after backslash,
+    pytest.param("1\\\n+2", "complete", None),
+]
+
+
+@skip('Tested on master, skip only on iptest not available on 7.x')
[e-mail](
+    reason="Bug in python 3.9.8 – bpo 45738",
+    condition=sys.version_info[:3] == (3, 9, 8),
+)
 def test_check_complete():
     cc = ipt2.TransformerManager().check_complete
-    nt.assert_equal(cc("a = 1"), ('complete', None))
-    nt.assert_equal(cc("for a in range(5):"), ('incomplete', 4))
-    nt.assert_equal(cc("for a in range(5):\n    if a > 0:"), ('incomplete', 8))
-    nt.assert_equal(cc("raise = 2"), ('invalid', None))
-    nt.assert_equal(cc("a = [1,\n2,"), ('incomplete', 0))
-    nt.assert_equal(cc(")"), ('incomplete', 0))
-    nt.assert_equal(cc("\\\r\n"), ('incomplete', 0))
-    nt.assert_equal(cc("a = '''\n   hi"), ('incomplete', 3))
-    nt.assert_equal(cc("def a():\n x=1\n global x"), ('invalid', None))
-    nt.assert_equal(cc("a \\ "), ('invalid', None))  # Nothing allowed after backslash
-    nt.assert_equal(cc("1\\\n+2"), ('complete', None))
-    nt.assert_equal(cc("exit"), ('complete', None))
 
     example = dedent("""
         if True:

codecov.yml

@@ -1,9 +1,26 b''
 coverage:
   status:
+    patch: off
     project:
-      default:
+      default: false
+      library:
         target: auto
-        threshold: 10
-    patch:
-      default:
-        target: 0%
+        paths: ['!.*/tests/.*']
+        threshold: 0.1%
+      tests:
+        target: auto
+        paths: ['.*/tests/.*']
+codecov:
+  require_ci_to_pass: false
+
+ignore:
+  - IPython/kernel/*
+  - IPython/consoleapp.py
+  - IPython/core/inputsplitter.py
+  - IPython/lib/inputhook*.py
+  - IPython/lib/kernel.py
+  - IPython/utils/jsonutil.py
+  - IPython/utils/localinterfaces.py
+  - IPython/utils/log.py
+  - IPython/utils/signatures.py
+  - IPython/utils/traitlets.py