Fix tests on Python 3.10.

.meta.toml

@@ -60,7 +60,7 @@ coverage-setenv = [
     ]
 
 [coverage]
-fail-under = 99.2
+fail-under = 98.9
 
 [manifest]
 additional-rules = [

src/RestrictedPython/_compat.py

@@ -10,6 +10,7 @@
 IS_PY36_OR_GREATER = _version.major == 3 and _version.minor >= 6
 IS_PY37_OR_GREATER = _version.major == 3 and _version.minor >= 7
 IS_PY38_OR_GREATER = _version.major == 3 and _version.minor >= 8
+IS_PY310_OR_GREATER = _version.major == 3 and _version.minor >= 10
 
 if IS_PY2:  # pragma: PY2
     basestring = basestring  # NOQA: F821  # Python 2 only built-in function

tests/test_compile.py

@@ -6,6 +6,7 @@
 from RestrictedPython._compat import IS_PY2
 from RestrictedPython._compat import IS_PY3
 from RestrictedPython._compat import IS_PY38_OR_GREATER
+from RestrictedPython._compat import IS_PY310_OR_GREATER
 from tests.helper import restricted_eval
 
 import platform
@@ -40,7 +41,9 @@ def test_compile__compile_restricted_invalid_mode_input():
 def test_compile__invalid_syntax():
     with pytest.raises(SyntaxError) as err:
         compile_restricted(INVALID_ASSINGMENT, '<string>', 'exec')
-    if IS_PY38_OR_GREATER:
+    if IS_PY310_OR_GREATER:
+        assert "SyntaxError: cannot assign to literal here." in str(err.value)
+    elif IS_PY38_OR_GREATER:
         assert "cannot assign to literal at statement:" in str(err.value)
     else:
         assert "can't assign to literal at statement:" in str(err.value)
@@ -120,9 +123,15 @@ def no_exec():
 def test_compile__compile_restricted_exec__10():  # pragma: PY3
     """It is a SyntaxError to use the `exec` statement. (Python 3 only)"""
     result = compile_restricted_exec(EXEC_STATEMENT)
-    assert (
-        'Line 2: SyntaxError: Missing parentheses in call to \'exec\' at '
-        'statement: "exec \'q = 1\'"',) == result.errors
+    if IS_PY310_OR_GREATER:
+        assert (
+            'Line 2: SyntaxError: Missing parentheses in call to \'exec\'. Did'
+            ' you mean exec(...)? at statement: "exec \'q = 1\'"',
+        ) == result.errors
+    else:
+        assert (
+            'Line 2: SyntaxError: Missing parentheses in call to \'exec\' at'
+            ' statement: "exec \'q = 1\'"',) == result.errors
 
 
 FUNCTION_DEF = """\

tests/test_compile_restricted_function.py

@@ -2,6 +2,7 @@
 from RestrictedPython import PrintCollector
 from RestrictedPython import safe_builtins
 from RestrictedPython._compat import IS_PY38_OR_GREATER
+from RestrictedPython._compat import IS_PY310_OR_GREATER
 from types import FunctionType
 
 
@@ -210,9 +211,15 @@ def test_compile_restricted_function_handle_SyntaxError():
     )
 
     assert result.code is None
-    assert result.errors == (
-        "Line 1: SyntaxError: unexpected EOF while parsing at statement: 'a('",
-    )
+    if IS_PY310_OR_GREATER:
+        assert result.errors == (
+            "Line 1: SyntaxError: '(' was never closed at statement: 'a('",
+        )
+    else:
+        assert result.errors == (
+            "Line 1: SyntaxError: unexpected EOF while parsing at statement:"
+            " 'a('",
+        )
 
 
 def test_compile_restricted_function_invalid_syntax():
@@ -230,7 +237,11 @@ def test_compile_restricted_function_invalid_syntax():
     assert len(result.errors) == 1
     error_msg = result.errors[0]
 
-    if IS_PY38_OR_GREATER:
+    if IS_PY310_OR_GREATER:
+        assert error_msg.startswith(
+            "Line 1: SyntaxError: cannot assign to literal here. Maybe "
+        )
+    elif IS_PY38_OR_GREATER:
         assert error_msg.startswith(
             "Line 1: SyntaxError: cannot assign to literal at statement:"
         )

tox.ini

@@ -92,7 +92,7 @@ commands =
     pytest --cov=src --cov=tests --cov-report= {posargs}
     coverage run -a -m sphinx -b doctest -d {envdir}/.cache/doctrees docs {envdir}/.cache/doctest
     coverage html
-    coverage report -m --fail-under=99.2
+    coverage report -m --fail-under=98.9
 
 [coverage:run]
 branch = True