diff options
Diffstat (limited to 'sources/shiboken2/tests/minimalbinding/brace_pattern_test.py')
-rw-r--r-- | sources/shiboken2/tests/minimalbinding/brace_pattern_test.py | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sources/shiboken2/tests/minimalbinding/brace_pattern_test.py b/sources/shiboken2/tests/minimalbinding/brace_pattern_test.py new file mode 100644 index 000000000..89df998e8 --- /dev/null +++ b/sources/shiboken2/tests/minimalbinding/brace_pattern_test.py @@ -0,0 +1,121 @@ +############################################################################# +## +## Copyright (C) 2019 The Qt Company Ltd. +## Contact: https://www.qt.io/licensing/ +## +## This file is part of Qt for Python. +## +## $QT_BEGIN_LICENSE:LGPL$ +## Commercial License Usage +## Licensees holding valid commercial Qt licenses may use this file in +## accordance with the commercial license agreement provided with the +## Software or, alternatively, in accordance with the terms contained in +## a written agreement between you and The Qt Company. For licensing terms +## and conditions see https://www.qt.io/terms-conditions. For further +## information use the contact form at https://www.qt.io/contact-us. +## +## GNU Lesser General Public License Usage +## Alternatively, this file may be used under the terms of the GNU Lesser +## General Public License version 3 as published by the Free Software +## Foundation and appearing in the file LICENSE.LGPL3 included in the +## packaging of this file. Please review the following information to +## ensure the GNU Lesser General Public License version 3 requirements +## will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +## +## GNU General Public License Usage +## Alternatively, this file may be used under the terms of the GNU +## General Public License version 2.0 or (at your option) the GNU General +## Public license version 3 or any later version approved by the KDE Free +## Qt Foundation. The licenses are as published by the Free Software +## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +## included in the packaging of this file. Please review the following +## information to ensure the GNU General Public License requirements will +## be met: https://www.gnu.org/licenses/gpl-2.0.html and +## https://www.gnu.org/licenses/gpl-3.0.html. +## +## $QT_END_LICENSE$ +## +############################################################################# + +from __future__ import absolute_import, print_function + +import re +import sys +import os + +import shiboken2 +type.__signature__ # trigger bootstrap + +from shibokensupport.signature.lib.tool import build_brace_pattern +import unittest + +""" +This test tests the brace pattern from signature.lib.tool +against a slower reference implementation. +The pattern is crucial, because it is used heavily in signature.parser . +""" + +# A slow reference parser for braces and strings +def check(s): + open, close = "[{(<", "]})>" + escape, quote = "\\", '"' + instring = blind = False + stack = [] + for c in s: + if instring: + if blind: + blind = False + elif c == escape: + blind = True + elif c == quote: + instring = False + stack.pop() + continue + if c in open: + stack.append(c) + elif c in close: + pos = close.index(c) + if ((len(stack) > 0) and + (open[pos] == stack[len(stack)-1])): + stack.pop() + else: + return False + elif c == escape: + return False + elif c == quote: + instring = True + stack.append(c) + return len(stack) == 0 + + +class TestBracePattern(unittest.TestCase): + tests = [ + (r'{[]{()}}', True), + (r'[{}{})(]', False), + (r'[{}{} ")(" ]', True), + (r'[{}{} ")(\" ]', False), + (r'[{}{} ")(\" ]"]', True), + (r'a < b ( c [ d { "} \"\"}" } ] ) >', True), + (r'a < b ( c [ d { } ] ) >', True), + (r'a < b ( c [ d { "huh" } ] ) >', True), + (r'a < b ( c [ d { "huh\" \" \\\"" } ] ) >', True), + ] + + def test_checkfunc(self): + for test, result in self.tests: + if result: + self.assertTrue(check(test)) + else: + self.assertFalse(check(test)) + + def test_the_brace_pattern(self): + func = re.compile(build_brace_pattern(5) + "$", re.VERBOSE).match + for test, result in self.tests: + if result: + self.assertTrue(func(test)) + else: + self.assertFalse(func(test)) + + +if __name__ == '__main__': + unittest.main() |