diff options
Diffstat (limited to 'Lib/test/test_grammar.py')
| -rw-r--r-- | Lib/test/test_grammar.py | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py index ced9000..ee105a3 100644 --- a/Lib/test/test_grammar.py +++ b/Lib/test/test_grammar.py @@ -236,12 +236,9 @@ class TokenTests(unittest.TestCase): check(f"[{num}for x in ()]") check(f"{num}spam", error=True) + with self.assertWarnsRegex(SyntaxWarning, r'invalid \w+ literal'): + compile(f"{num}is x", "<testcase>", "eval") with warnings.catch_warnings(): - warnings.filterwarnings('ignore', '"is" with a literal', - SyntaxWarning) - with self.assertWarnsRegex(SyntaxWarning, - r'invalid \w+ literal'): - compile(f"{num}is x", "<testcase>", "eval") warnings.simplefilter('error', SyntaxWarning) with self.assertRaisesRegex(SyntaxError, r'invalid \w+ literal'): @@ -1467,14 +1464,22 @@ class GrammarTests(unittest.TestCase): if 1 < 1 > 1 == 1 >= 1 <= 1 != 1 in 1 not in x is x is not x: pass def test_comparison_is_literal(self): - def check(test, msg='"is" with a literal'): + def check(test, msg): self.check_syntax_warning(test, msg) - check('x is 1') - check('x is "thing"') - check('1 is x') - check('x is y is 1') - check('x is not 1', '"is not" with a literal') + check('x is 1', '"is" with \'int\' literal') + check('x is "thing"', '"is" with \'str\' literal') + check('1 is x', '"is" with \'int\' literal') + check('x is y is 1', '"is" with \'int\' literal') + check('x is not 1', '"is not" with \'int\' literal') + check('x is not (1, 2)', '"is not" with \'tuple\' literal') + check('(1, 2) is not x', '"is not" with \'tuple\' literal') + + check('None is 1', '"is" with \'int\' literal') + check('1 is None', '"is" with \'int\' literal') + + check('x == 3 is y', '"is" with \'int\' literal') + check('x == "thing" is y', '"is" with \'str\' literal') with warnings.catch_warnings(): warnings.simplefilter('error', SyntaxWarning) @@ -1482,6 +1487,10 @@ class GrammarTests(unittest.TestCase): compile('x is False', '<testcase>', 'exec') compile('x is True', '<testcase>', 'exec') compile('x is ...', '<testcase>', 'exec') + compile('None is x', '<testcase>', 'exec') + compile('False is x', '<testcase>', 'exec') + compile('True is x', '<testcase>', 'exec') + compile('... is x', '<testcase>', 'exec') def test_warn_missed_comma(self): def check(test): |