diff options
Diffstat (limited to 'Lib/test/test_grammar.py')
| -rw-r--r-- | Lib/test/test_grammar.py | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py index ee41362..78918ae 100644 --- a/Lib/test/test_grammar.py +++ b/Lib/test/test_grammar.py @@ -100,6 +100,8 @@ INVALID_UNDERSCORE_LITERALS = [ class TokenTests(unittest.TestCase): + check_syntax_error = check_syntax_error + def test_backslash(self): # Backslash means line continuation: x = 1 \ @@ -184,6 +186,28 @@ class TokenTests(unittest.TestCase): # Sanity check: no literal begins with an underscore self.assertRaises(NameError, eval, "_0") + def test_bad_numerical_literals(self): + check = self.check_syntax_error + check("0b12", "invalid digit '2' in binary literal") + check("0b1_2", "invalid digit '2' in binary literal") + check("0b2", "invalid digit '2' in binary literal") + check("0b1_", "invalid binary literal") + check("0b", "invalid binary literal") + check("0o18", "invalid digit '8' in octal literal") + check("0o1_8", "invalid digit '8' in octal literal") + check("0o8", "invalid digit '8' in octal literal") + check("0o1_", "invalid octal literal") + check("0o", "invalid octal literal") + check("0x1_", "invalid hexadecimal literal") + check("0x", "invalid hexadecimal literal") + check("1_", "invalid decimal literal") + check("012", + "leading zeros in decimal integer literals are not permitted; " + "use an 0o prefix for octal integers") + check("1.2_", "invalid decimal literal") + check("1e2_", "invalid decimal literal") + check("1e+", "invalid decimal literal") + def test_string_literals(self): x = ''; y = ""; self.assertTrue(len(x) == 0 and x == y) x = '\''; y = "'"; self.assertTrue(len(x) == 1 and x == y and ord(x) == 39) |