Pytest fail to discover test case when the python string contain unmatched parenthess

[liaoya]

Environment data

• VS Code version: 1.61.2
• Extension version (available under the Extensions sidebar): v2021.10.1365161279
• OS and version: Windows 10 21H1
• Python version (& distribution if applicable, e.g. Anaconda): Python 3.10.0
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): virtualenv
• Value of the python.languageServer setting: Pylance v2021.10.3

Expected behaviour

Can discover python test case

Actual behaviour

Fail to discover python test case

Steps to reproduce:

The python code validparentheses.py

class ReplaceSolution:
    def isValid(self, s: str) -> bool:
        length = len(s)
        while True:
            s = s.replace("()", "").replace("{}", "").replace("[]", "")
            if len(s) == length:
                break
            length = len(s)
        return not s

The test code

import pytest

from validparentheses import ReplaceSolution

@pytest.mark.parametrize("s,expect", [("()", True), ("()[]{}", True), ("(]", False), ("([)]", False), ("{[]}", True)])
def test_validparentheses(s: str, expect: bool):
    assert ReplaceSolution().isValid(s) == expect

Logs

The Python extension has run into an unexpected situation while processing a pytest node during test discovery. Please Please open an issue at: https://github.com/microsoft/vscode-python/issues and paste the following output there.

nodeid: ./problem/20/test_validparentheses.py::test_validparentheses[(]-False]

traceback:
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/run_adapter.py", line 22, in
main(tool, cmd, subargs, toolargs)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/main.py", line 100, in main
parents, result = run(toolargs, **subargs)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 30, in discover
ec = _pytest_main(pytestargs, [_plugin])
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/config/init.py", line 162, in main
ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main(
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in call
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/main.py", line 316, in pytest_cmdline_main
return wrap_session(config, _main)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/main.py", line 269, in wrap_session
session.exitstatus = doit(config, session) or 0
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/main.py", line 322, in _main
config.hook.pytest_collection(session=session)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in call
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/main.py", line 333, in pytest_collection
session.perform_collect()
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/_pytest/main.py", line 641, in perform_collect
hook.pytest_collection_finish(session=self)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in call
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File "/opt/pyenv/versions/leetcode/lib/python3.10/site-packages/pluggy/_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 107, in pytest_collection_finish
test, parents = self.parse_item(item)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 77, in parse_item
return parse_item(item)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 161, in parse_item
(nodeid, parents, fileid, testfunc, parameterized) = _parse_node_id(
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 144, in
_parse_node_id=(lambda *a: _parse_node_id(*a)),
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 382, in _parse_node_id
testid, name, kind = next(nodes)
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 479, in _iter_nodes
raise should_never_reach_here(
File "/home/yaekee/.vscode-server/extensions/ms-python.python-2021.10.1365161279/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 132, in should_never_reach_here
traceback.print_stack()

[karthiknadig]

Duplicate of #17676