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Pytest discovery error with "]" char in pytest.mark.parametrize #17750

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RoPP opened this issue Oct 15, 2021 · 1 comment
Closed

Pytest discovery error with "]" char in pytest.mark.parametrize #17750

RoPP opened this issue Oct 15, 2021 · 1 comment
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bug Issue identified by VS Code Team member as probable bug

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@RoPP
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RoPP commented Oct 15, 2021

Environment data

  • VS Code version: 1.61.1
  • Extension version (available under the Extensions sidebar): v2021.10.1336267007
  • OS and version: Linux
  • Python version (& distribution if applicable, e.g. Anaconda): 3.9.5
  • Type of virtual environment used (N/A | venv | virtualenv | conda | ...): venv
  • Relevant/affected Python packages and their versions: XXX
  • Relevant/affected Python-related VS Code extensions and their versions: XXX
  • Value of the python.languageServer setting: pylance

[NOTE: If you suspect that your issue is related to the Microsoft Python Language Server (python.languageServer: 'Microsoft'), please download our new language server Pylance from the VS Code marketplace to see if that fixes your issue]

Expected behaviour

List tests in test explorer

Actual behaviour

image

Steps to reproduce:

[NOTE: Self-contained, minimal reproducing code samples are extremely helpful and will expedite addressing your issue]

  1. write a pytest
import pytest

@pytest.mark.parametrize("foo", (chr(93),))
def test_foo(self, foo):
  assert True

Peek 14-10-2021 11-56

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python) 

> ~/.virtualenvs/bug_vscode/bin/python ~/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/run_adapter.py discover pytest -- --rootdir ~/Code/xxx/bug_pytest_vscode -s --cache-clear
cwd: ~/Code/xxx/bug_pytest_vscode
Error 2021-10-15 13:44:06: Error discovering pytest tests:
 r [Error]: ============================= test session starts ==============================
platform linux -- Python 3.9.5, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
rootdir: /home/yyy/Code/xxx/bug_pytest_vscode
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: ./tests/test_plop.py::test_foo[]]

traceback:
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/run_adapter.py", line 22, in <module>
    main(tool, cmd, subargs, toolargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/__main__.py", line 100, in main
    parents, result = run(toolargs, **subargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 30, in discover
    ec = _pytest_main(pytestargs, [_plugin])
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/config/__init__.py", line 162, in main
    ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main(
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 316, in pytest_cmdline_main
    return wrap_session(config, _main)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 269, in wrap_session
    session.exitstatus = doit(config, session) or 0
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 322, in _main
    config.hook.pytest_collection(session=session)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 333, in pytest_collection
    session.perform_collect()
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 637, in perform_collect
    hook.pytest_collection_modifyitems(
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 92, in pytest_collection_modifyitems
    test, parents = self.parse_item(item)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 77, in parse_item
    return parse_item(item)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 161, in parse_item
    (nodeid, parents, fileid, testfunc, parameterized) = _parse_node_id(
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 144, in <lambda>
    _parse_node_id=(lambda *a: _parse_node_id(*a)),
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 382, in _parse_node_id
    testid, name, kind = next(nodes)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 479, in _iter_nodes
    raise should_never_reach_here(
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 132, in should_never_reach_here
    traceback.print_stack()
collected 1 item

<Module tests/test_plop.py>
  <Function test_foo[]]>
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: ./tests/test_plop.py::test_foo[]]

traceback:
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/run_adapter.py", line 22, in <module>
    main(tool, cmd, subargs, toolargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/__main__.py", line 100, in main
    parents, result = run(toolargs, **subargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 30, in discover
    ec = _pytest_main(pytestargs, [_plugin])
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/config/__init__.py", line 162, in main
    ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main(
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 316, in pytest_cmdline_main
    return wrap_session(config, _main)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 269, in wrap_session
    session.exitstatus = doit(config, session) or 0
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 322, in _main
    config.hook.pytest_collection(session=session)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 333, in pytest_collection
    session.perform_collect()
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 641, in perform_collect
    hook.pytest_collection_finish(session=self)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
    return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
    res = hook_impl.function(*args)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 107, in pytest_collection_finish
    test, parents = self.parse_item(item)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 77, in parse_item
    return parse_item(item)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 161, in parse_item
    (nodeid, parents, fileid, testfunc, parameterized) = _parse_node_id(
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 144, in <lambda>
    _parse_node_id=(lambda *a: _parse_node_id(*a)),
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 382, in _parse_node_id
    testid, name, kind = next(nodes)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 479, in _iter_nodes
    raise should_never_reach_here(
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 132, in should_never_reach_here
    traceback.print_stack()
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 637, in perform_collect
INTERNALERROR>     hook.pytest_collection_modifyitems(
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 92, in pytest_collection_modifyitems
INTERNALERROR>     test, parents = self.parse_item(item)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 77, in parse_item
INTERNALERROR>     return parse_item(item)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 161, in parse_item
INTERNALERROR>     (nodeid, parents, fileid, testfunc, parameterized) = _parse_node_id(
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 144, in <lambda>
INTERNALERROR>     _parse_node_id=(lambda *a: _parse_node_id(*a)),
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 382, in _parse_node_id
INTERNALERROR>     testid, name, kind = next(nodes)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 479, in _iter_nodes
INTERNALERROR>     raise should_never_reach_here(
INTERNALERROR> NotImplementedError: Unexpected pytest node (see printed output).
INTERNALERROR> 
INTERNALERROR> During handling of the above exception, another exception occurred:
INTERNALERROR> 
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 269, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 322, in _main
INTERNALERROR>     config.hook.pytest_collection(session=session)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 333, in pytest_collection
INTERNALERROR>     session.perform_collect()
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/_pytest/main.py", line 641, in perform_collect
INTERNALERROR>     hook.pytest_collection_finish(session=self)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/home/yyy/.virtualenvs/bug_vscode/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 107, in pytest_collection_finish
INTERNALERROR>     test, parents = self.parse_item(item)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 77, in parse_item
INTERNALERROR>     return parse_item(item)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 161, in parse_item
INTERNALERROR>     (nodeid, parents, fileid, testfunc, parameterized) = _parse_node_id(
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 144, in <lambda>
INTERNALERROR>     _parse_node_id=(lambda *a: _parse_node_id(*a)),
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 382, in _parse_node_id
INTERNALERROR>     testid, name, kind = next(nodes)
INTERNALERROR>   File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_pytest_item.py", line 479, in _iter_nodes
INTERNALERROR>     raise should_never_reach_here(
INTERNALERROR> NotImplementedError: Unexpected pytest node (see printed output).

========================== 1 test collected in 0.01s ===========================

Traceback (most recent call last):
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/run_adapter.py", line 22, in <module>
    main(tool, cmd, subargs, toolargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/__main__.py", line 100, in main
    parents, result = run(toolargs, **subargs)
  File "/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/pythonFiles/testing_tools/adapter/pytest/_discovery.py", line 44, in discover
    raise Exception("pytest discovery failed (exit code {})".format(ec))
Exception: pytest discovery failed (exit code 3)

    at ChildProcess.<anonymous> (/home/yyy/.vscode/extensions/ms-python.python-2021.10.1336267007/out/client/extension.js:17:37534)
    at Object.onceWrapper (events.js:422:26)
    at ChildProcess.emit (events.js:315:20)
    at maybeClose (internal/child_process.js:1048:16)
    at Socket.<anonymous> (internal/child_process.js:439:11)
    at Socket.emit (events.js:315:20)
    at Pipe.<anonymous> (net.js:673:12)

@RoPP RoPP added bug Issue identified by VS Code Team member as probable bug triage-needed Needs assignment to the proper sub-team labels Oct 15, 2021
@karthiknadig
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Duplicate of #17676

@karthiknadig karthiknadig marked this as a duplicate of #17676 Oct 15, 2021
@karthiknadig karthiknadig removed the triage-needed Needs assignment to the proper sub-team label Oct 18, 2021
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