diff options
Diffstat (limited to 'Lib/test/test_parser.py')
| -rw-r--r-- | Lib/test/test_parser.py | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/Lib/test/test_parser.py b/Lib/test/test_parser.py index 9ab4171..020acd5 100644 --- a/Lib/test/test_parser.py +++ b/Lib/test/test_parser.py @@ -1,5 +1,4 @@ import parser -import os import unittest import sys import operator @@ -34,7 +33,7 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase): code = suite.compile() scope = {} exec(code, {}, scope) - self.assertTrue(isinstance(scope["x"], str)) + self.assertIsInstance(scope["x"], str) def check_suite(self, s): self.roundtrip(parser.suite, s) @@ -227,7 +226,7 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase): def test_position(self): # An absolutely minimal test of position information. Better # tests would be a big project. - code = "def f(x):\n return x + 1\n" + code = "def f(x):\n return x + 1" st1 = parser.suite(code) st2 = st1.totuple(line_info=1, col_info=1) @@ -261,6 +260,12 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase): (0, '', 2, -1)], terminals) + def test_extended_unpacking(self): + self.check_suite("*a = y") + self.check_suite("x, *b, = m") + self.check_suite("[*a, *b] = y") + self.check_suite("for [*x, b] in x: pass") + # # Second, we take *invalid* trees and make sure we get ParserError @@ -512,6 +517,16 @@ class CompileTestCase(unittest.TestCase): st = parser.suite('a = "\\u1"') self.assertRaises(SyntaxError, parser.compilest, st) + def test_issue_9011(self): + # Issue 9011: compilation of an unary minus expression changed + # the meaning of the ST, so that a second compilation produced + # incorrect results. + st = parser.expr('-3') + code1 = parser.compilest(st) + self.assertEqual(eval(code1), -3) + code2 = parser.compilest(st) + self.assertEqual(eval(code2), -3) + class ParserStackLimitTestCase(unittest.TestCase): """try to push the parser to/over its limits. see http://bugs.python.org/issue1881 for a discussion @@ -529,6 +544,7 @@ class ParserStackLimitTestCase(unittest.TestCase): e = self._nested_expression(100) print("Expecting 's_push: parser stack overflow' in next line", file=sys.stderr) + sys.stderr.flush() self.assertRaises(MemoryError, parser.expr, e) class STObjectTestCase(unittest.TestCase): |