tests versuch 2

venv/lib/python3.11/site-packages/_pytest/config/argparsing.py

@@ -0,0 +1,551 @@
+import argparse
+import os
+import sys
+import warnings
+from gettext import gettext
+from typing import Any
+from typing import Callable
+from typing import cast
+from typing import Dict
+from typing import List
+from typing import Mapping
+from typing import NoReturn
+from typing import Optional
+from typing import Sequence
+from typing import Tuple
+from typing import TYPE_CHECKING
+from typing import Union
+
+import _pytest._io
+from _pytest.compat import final
+from _pytest.config.exceptions import UsageError
+from _pytest.deprecated import ARGUMENT_PERCENT_DEFAULT
+from _pytest.deprecated import ARGUMENT_TYPE_STR
+from _pytest.deprecated import ARGUMENT_TYPE_STR_CHOICE
+from _pytest.deprecated import check_ispytest
+
+if TYPE_CHECKING:
+    from typing_extensions import Literal
+
+FILE_OR_DIR = "file_or_dir"
+
+
+@final
+class Parser:
+    """Parser for command line arguments and ini-file values.
+
+    :ivar extra_info: Dict of generic param -> value to display in case
+        there's an error processing the command line arguments.
+    """
+
+    prog: Optional[str] = None
+
+    def __init__(
+        self,
+        usage: Optional[str] = None,
+        processopt: Optional[Callable[["Argument"], None]] = None,
+        *,
+        _ispytest: bool = False,
+    ) -> None:
+        check_ispytest(_ispytest)
+        self._anonymous = OptionGroup("Custom options", parser=self, _ispytest=True)
+        self._groups: List[OptionGroup] = []
+        self._processopt = processopt
+        self._usage = usage
+        self._inidict: Dict[str, Tuple[str, Optional[str], Any]] = {}
+        self._ininames: List[str] = []
+        self.extra_info: Dict[str, Any] = {}
+
+    def processoption(self, option: "Argument") -> None:
+        if self._processopt:
+            if option.dest:
+                self._processopt(option)
+
+    def getgroup(
+        self, name: str, description: str = "", after: Optional[str] = None
+    ) -> "OptionGroup":
+        """Get (or create) a named option Group.
+
+        :param name: Name of the option group.
+        :param description: Long description for --help output.
+        :param after: Name of another group, used for ordering --help output.
+        :returns: The option group.
+
+        The returned group object has an ``addoption`` method with the same
+        signature as :func:`parser.addoption <pytest.Parser.addoption>` but
+        will be shown in the respective group in the output of
+        ``pytest --help``.
+        """
+        for group in self._groups:
+            if group.name == name:
+                return group
+        group = OptionGroup(name, description, parser=self, _ispytest=True)
+        i = 0
+        for i, grp in enumerate(self._groups):
+            if grp.name == after:
+                break
+        self._groups.insert(i + 1, group)
+        return group
+
+    def addoption(self, *opts: str, **attrs: Any) -> None:
+        """Register a command line option.
+
+        :param opts:
+            Option names, can be short or long options.
+        :param attrs:
+            Same attributes as the argparse library's :py:func:`add_argument()
+            <argparse.ArgumentParser.add_argument>` function accepts.
+
+        After command line parsing, options are available on the pytest config
+        object via ``config.option.NAME`` where ``NAME`` is usually set
+        by passing a ``dest`` attribute, for example
+        ``addoption("--long", dest="NAME", ...)``.
+        """
+        self._anonymous.addoption(*opts, **attrs)
+
+    def parse(
+        self,
+        args: Sequence[Union[str, "os.PathLike[str]"]],
+        namespace: Optional[argparse.Namespace] = None,
+    ) -> argparse.Namespace:
+        from _pytest._argcomplete import try_argcomplete
+
+        self.optparser = self._getparser()
+        try_argcomplete(self.optparser)
+        strargs = [os.fspath(x) for x in args]
+        return self.optparser.parse_args(strargs, namespace=namespace)
+
+    def _getparser(self) -> "MyOptionParser":
+        from _pytest._argcomplete import filescompleter
+
+        optparser = MyOptionParser(self, self.extra_info, prog=self.prog)
+        groups = self._groups + [self._anonymous]
+        for group in groups:
+            if group.options:
+                desc = group.description or group.name
+                arggroup = optparser.add_argument_group(desc)
+                for option in group.options:
+                    n = option.names()
+                    a = option.attrs()
+                    arggroup.add_argument(*n, **a)
+        file_or_dir_arg = optparser.add_argument(FILE_OR_DIR, nargs="*")
+        # bash like autocompletion for dirs (appending '/')
+        # Type ignored because typeshed doesn't know about argcomplete.
+        file_or_dir_arg.completer = filescompleter  # type: ignore
+        return optparser
+
+    def parse_setoption(
+        self,
+        args: Sequence[Union[str, "os.PathLike[str]"]],
+        option: argparse.Namespace,
+        namespace: Optional[argparse.Namespace] = None,
+    ) -> List[str]:
+        parsedoption = self.parse(args, namespace=namespace)
+        for name, value in parsedoption.__dict__.items():
+            setattr(option, name, value)
+        return cast(List[str], getattr(parsedoption, FILE_OR_DIR))
+
+    def parse_known_args(
+        self,
+        args: Sequence[Union[str, "os.PathLike[str]"]],
+        namespace: Optional[argparse.Namespace] = None,
+    ) -> argparse.Namespace:
+        """Parse the known arguments at this point.
+
+        :returns: An argparse namespace object.
+        """
+        return self.parse_known_and_unknown_args(args, namespace=namespace)[0]
+
+    def parse_known_and_unknown_args(
+        self,
+        args: Sequence[Union[str, "os.PathLike[str]"]],
+        namespace: Optional[argparse.Namespace] = None,
+    ) -> Tuple[argparse.Namespace, List[str]]:
+        """Parse the known arguments at this point, and also return the
+        remaining unknown arguments.
+
+        :returns:
+            A tuple containing an argparse namespace object for the known
+            arguments, and a list of the unknown arguments.
+        """
+        optparser = self._getparser()
+        strargs = [os.fspath(x) for x in args]
+        return optparser.parse_known_args(strargs, namespace=namespace)
+
+    def addini(
+        self,
+        name: str,
+        help: str,
+        type: Optional[
+            "Literal['string', 'paths', 'pathlist', 'args', 'linelist', 'bool']"
+        ] = None,
+        default: Any = None,
+    ) -> None:
+        """Register an ini-file option.
+
+        :param name:
+            Name of the ini-variable.
+        :param type:
+            Type of the variable. Can be:
+
+                * ``string``: a string
+                * ``bool``: a boolean
+                * ``args``: a list of strings, separated as in a shell
+                * ``linelist``: a list of strings, separated by line breaks
+                * ``paths``: a list of :class:`pathlib.Path`, separated as in a shell
+                * ``pathlist``: a list of ``py.path``, separated as in a shell
+
+            .. versionadded:: 7.0
+                The ``paths`` variable type.
+
+            Defaults to ``string`` if ``None`` or not passed.
+        :param default:
+            Default value if no ini-file option exists but is queried.
+
+        The value of ini-variables can be retrieved via a call to
+        :py:func:`config.getini(name) <pytest.Config.getini>`.
+        """
+        assert type in (None, "string", "paths", "pathlist", "args", "linelist", "bool")
+        self._inidict[name] = (help, type, default)
+        self._ininames.append(name)
+
+
+class ArgumentError(Exception):
+    """Raised if an Argument instance is created with invalid or
+    inconsistent arguments."""
+
+    def __init__(self, msg: str, option: Union["Argument", str]) -> None:
+        self.msg = msg
+        self.option_id = str(option)
+
+    def __str__(self) -> str:
+        if self.option_id:
+            return f"option {self.option_id}: {self.msg}"
+        else:
+            return self.msg
+
+
+class Argument:
+    """Class that mimics the necessary behaviour of optparse.Option.
+
+    It's currently a least effort implementation and ignoring choices
+    and integer prefixes.
+
+    https://docs.python.org/3/library/optparse.html#optparse-standard-option-types
+    """
+
+    _typ_map = {"int": int, "string": str, "float": float, "complex": complex}
+
+    def __init__(self, *names: str, **attrs: Any) -> None:
+        """Store params in private vars for use in add_argument."""
+        self._attrs = attrs
+        self._short_opts: List[str] = []
+        self._long_opts: List[str] = []
+        if "%default" in (attrs.get("help") or ""):
+            warnings.warn(ARGUMENT_PERCENT_DEFAULT, stacklevel=3)
+        try:
+            typ = attrs["type"]
+        except KeyError:
+            pass
+        else:
+            # This might raise a keyerror as well, don't want to catch that.
+            if isinstance(typ, str):
+                if typ == "choice":
+                    warnings.warn(
+                        ARGUMENT_TYPE_STR_CHOICE.format(typ=typ, names=names),
+                        stacklevel=4,
+                    )
+                    # argparse expects a type here take it from
+                    # the type of the first element
+                    attrs["type"] = type(attrs["choices"][0])
+                else:
+                    warnings.warn(
+                        ARGUMENT_TYPE_STR.format(typ=typ, names=names), stacklevel=4
+                    )
+                    attrs["type"] = Argument._typ_map[typ]
+                # Used in test_parseopt -> test_parse_defaultgetter.
+                self.type = attrs["type"]
+            else:
+                self.type = typ
+        try:
+            # Attribute existence is tested in Config._processopt.
+            self.default = attrs["default"]
+        except KeyError:
+            pass
+        self._set_opt_strings(names)
+        dest: Optional[str] = attrs.get("dest")
+        if dest:
+            self.dest = dest
+        elif self._long_opts:
+            self.dest = self._long_opts[0][2:].replace("-", "_")
+        else:
+            try:
+                self.dest = self._short_opts[0][1:]
+            except IndexError as e:
+                self.dest = "???"  # Needed for the error repr.
+                raise ArgumentError("need a long or short option", self) from e
+
+    def names(self) -> List[str]:
+        return self._short_opts + self._long_opts
+
+    def attrs(self) -> Mapping[str, Any]:
+        # Update any attributes set by processopt.
+        attrs = "default dest help".split()
+        attrs.append(self.dest)
+        for attr in attrs:
+            try:
+                self._attrs[attr] = getattr(self, attr)
+            except AttributeError:
+                pass
+        if self._attrs.get("help"):
+            a = self._attrs["help"]
+            a = a.replace("%default", "%(default)s")
+            # a = a.replace('%prog', '%(prog)s')
+            self._attrs["help"] = a
+        return self._attrs
+
+    def _set_opt_strings(self, opts: Sequence[str]) -> None:
+        """Directly from optparse.
+
+        Might not be necessary as this is passed to argparse later on.
+        """
+        for opt in opts:
+            if len(opt) < 2:
+                raise ArgumentError(
+                    "invalid option string %r: "
+                    "must be at least two characters long" % opt,
+                    self,
+                )
+            elif len(opt) == 2:
+                if not (opt[0] == "-" and opt[1] != "-"):
+                    raise ArgumentError(
+                        "invalid short option string %r: "
+                        "must be of the form -x, (x any non-dash char)" % opt,
+                        self,
+                    )
+                self._short_opts.append(opt)
+            else:
+                if not (opt[0:2] == "--" and opt[2] != "-"):
+                    raise ArgumentError(
+                        "invalid long option string %r: "
+                        "must start with --, followed by non-dash" % opt,
+                        self,
+                    )
+                self._long_opts.append(opt)
+
+    def __repr__(self) -> str:
+        args: List[str] = []
+        if self._short_opts:
+            args += ["_short_opts: " + repr(self._short_opts)]
+        if self._long_opts:
+            args += ["_long_opts: " + repr(self._long_opts)]
+        args += ["dest: " + repr(self.dest)]
+        if hasattr(self, "type"):
+            args += ["type: " + repr(self.type)]
+        if hasattr(self, "default"):
+            args += ["default: " + repr(self.default)]
+        return "Argument({})".format(", ".join(args))
+
+
+class OptionGroup:
+    """A group of options shown in its own section."""
+
+    def __init__(
+        self,
+        name: str,
+        description: str = "",
+        parser: Optional[Parser] = None,
+        *,
+        _ispytest: bool = False,
+    ) -> None:
+        check_ispytest(_ispytest)
+        self.name = name
+        self.description = description
+        self.options: List[Argument] = []
+        self.parser = parser
+
+    def addoption(self, *opts: str, **attrs: Any) -> None:
+        """Add an option to this group.
+
+        If a shortened version of a long option is specified, it will
+        be suppressed in the help. ``addoption('--twowords', '--two-words')``
+        results in help showing ``--two-words`` only, but ``--twowords`` gets
+        accepted **and** the automatic destination is in ``args.twowords``.
+
+        :param opts:
+            Option names, can be short or long options.
+        :param attrs:
+            Same attributes as the argparse library's :py:func:`add_argument()
+            <argparse.ArgumentParser.add_argument>` function accepts.
+        """
+        conflict = set(opts).intersection(
+            name for opt in self.options for name in opt.names()
+        )
+        if conflict:
+            raise ValueError("option names %s already added" % conflict)
+        option = Argument(*opts, **attrs)
+        self._addoption_instance(option, shortupper=False)
+
+    def _addoption(self, *opts: str, **attrs: Any) -> None:
+        option = Argument(*opts, **attrs)
+        self._addoption_instance(option, shortupper=True)
+
+    def _addoption_instance(self, option: "Argument", shortupper: bool = False) -> None:
+        if not shortupper:
+            for opt in option._short_opts:
+                if opt[0] == "-" and opt[1].islower():
+                    raise ValueError("lowercase shortoptions reserved")
+        if self.parser:
+            self.parser.processoption(option)
+        self.options.append(option)
+
+
+class MyOptionParser(argparse.ArgumentParser):
+    def __init__(
+        self,
+        parser: Parser,
+        extra_info: Optional[Dict[str, Any]] = None,
+        prog: Optional[str] = None,
+    ) -> None:
+        self._parser = parser
+        super().__init__(
+            prog=prog,
+            usage=parser._usage,
+            add_help=False,
+            formatter_class=DropShorterLongHelpFormatter,
+            allow_abbrev=False,
+        )
+        # extra_info is a dict of (param -> value) to display if there's
+        # an usage error to provide more contextual information to the user.
+        self.extra_info = extra_info if extra_info else {}
+
+    def error(self, message: str) -> NoReturn:
+        """Transform argparse error message into UsageError."""
+        msg = f"{self.prog}: error: {message}"
+
+        if hasattr(self._parser, "_config_source_hint"):
+            # Type ignored because the attribute is set dynamically.
+            msg = f"{msg} ({self._parser._config_source_hint})"  # type: ignore
+
+        raise UsageError(self.format_usage() + msg)
+
+    # Type ignored because typeshed has a very complex type in the superclass.
+    def parse_args(  # type: ignore
+        self,
+        args: Optional[Sequence[str]] = None,
+        namespace: Optional[argparse.Namespace] = None,
+    ) -> argparse.Namespace:
+        """Allow splitting of positional arguments."""
+        parsed, unrecognized = self.parse_known_args(args, namespace)
+        if unrecognized:
+            for arg in unrecognized:
+                if arg and arg[0] == "-":
+                    lines = ["unrecognized arguments: %s" % (" ".join(unrecognized))]
+                    for k, v in sorted(self.extra_info.items()):
+                        lines.append(f"  {k}: {v}")
+                    self.error("\n".join(lines))
+            getattr(parsed, FILE_OR_DIR).extend(unrecognized)
+        return parsed
+
+    if sys.version_info[:2] < (3, 9):  # pragma: no cover
+        # Backport of https://github.com/python/cpython/pull/14316 so we can
+        # disable long --argument abbreviations without breaking short flags.
+        def _parse_optional(
+            self, arg_string: str
+        ) -> Optional[Tuple[Optional[argparse.Action], str, Optional[str]]]:
+            if not arg_string:
+                return None
+            if not arg_string[0] in self.prefix_chars:
+                return None
+            if arg_string in self._option_string_actions:
+                action = self._option_string_actions[arg_string]
+                return action, arg_string, None
+            if len(arg_string) == 1:
+                return None
+            if "=" in arg_string:
+                option_string, explicit_arg = arg_string.split("=", 1)
+                if option_string in self._option_string_actions:
+                    action = self._option_string_actions[option_string]
+                    return action, option_string, explicit_arg
+            if self.allow_abbrev or not arg_string.startswith("--"):
+                option_tuples = self._get_option_tuples(arg_string)
+                if len(option_tuples) > 1:
+                    msg = gettext(
+                        "ambiguous option: %(option)s could match %(matches)s"
+                    )
+                    options = ", ".join(option for _, option, _ in option_tuples)
+                    self.error(msg % {"option": arg_string, "matches": options})
+                elif len(option_tuples) == 1:
+                    (option_tuple,) = option_tuples
+                    return option_tuple
+            if self._negative_number_matcher.match(arg_string):
+                if not self._has_negative_number_optionals:
+                    return None
+            if " " in arg_string:
+                return None
+            return None, arg_string, None
+
+
+class DropShorterLongHelpFormatter(argparse.HelpFormatter):
+    """Shorten help for long options that differ only in extra hyphens.
+
+    - Collapse **long** options that are the same except for extra hyphens.
+    - Shortcut if there are only two options and one of them is a short one.
+    - Cache result on the action object as this is called at least 2 times.
+    """
+
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        # Use more accurate terminal width.
+        if "width" not in kwargs:
+            kwargs["width"] = _pytest._io.get_terminal_width()
+        super().__init__(*args, **kwargs)
+
+    def _format_action_invocation(self, action: argparse.Action) -> str:
+        orgstr = super()._format_action_invocation(action)
+        if orgstr and orgstr[0] != "-":  # only optional arguments
+            return orgstr
+        res: Optional[str] = getattr(action, "_formatted_action_invocation", None)
+        if res:
+            return res
+        options = orgstr.split(", ")
+        if len(options) == 2 and (len(options[0]) == 2 or len(options[1]) == 2):
+            # a shortcut for '-h, --help' or '--abc', '-a'
+            action._formatted_action_invocation = orgstr  # type: ignore
+            return orgstr
+        return_list = []
+        short_long: Dict[str, str] = {}
+        for option in options:
+            if len(option) == 2 or option[2] == " ":
+                continue
+            if not option.startswith("--"):
+                raise ArgumentError(
+                    'long optional argument without "--": [%s]' % (option), option
+                )
+            xxoption = option[2:]
+            shortened = xxoption.replace("-", "")
+            if shortened not in short_long or len(short_long[shortened]) < len(
+                xxoption
+            ):
+                short_long[shortened] = xxoption
+        # now short_long has been filled out to the longest with dashes
+        # **and** we keep the right option ordering from add_argument
+        for option in options:
+            if len(option) == 2 or option[2] == " ":
+                return_list.append(option)
+            if option[2:] == short_long.get(option.replace("-", "")):
+                return_list.append(option.replace(" ", "=", 1))
+        formatted_action_invocation = ", ".join(return_list)
+        action._formatted_action_invocation = formatted_action_invocation  # type: ignore
+        return formatted_action_invocation
+
+    def _split_lines(self, text, width):
+        """Wrap lines after splitting on original newlines.
+
+        This allows to have explicit line breaks in the help text.
+        """
+        import textwrap
+
+        lines = []
+        for line in text.splitlines():
+            lines.extend(textwrap.wrap(line.strip(), width))
+        return lines

venv/lib/python3.11/site-packages/_pytest/config/compat.py

@@ -0,0 +1,70 @@
+import functools
+import warnings
+from pathlib import Path
+from typing import Optional
+
+from ..compat import LEGACY_PATH
+from ..compat import legacy_path
+from ..deprecated import HOOK_LEGACY_PATH_ARG
+from _pytest.nodes import _check_path
+
+# hookname: (Path, LEGACY_PATH)
+imply_paths_hooks = {
+    "pytest_ignore_collect": ("collection_path", "path"),
+    "pytest_collect_file": ("file_path", "path"),
+    "pytest_pycollect_makemodule": ("module_path", "path"),
+    "pytest_report_header": ("start_path", "startdir"),
+    "pytest_report_collectionfinish": ("start_path", "startdir"),
+}
+
+
+class PathAwareHookProxy:
+    """
+    this helper wraps around hook callers
+    until pluggy supports fixingcalls, this one will do
+
+    it currently doesn't return full hook caller proxies for fixed hooks,
+    this may have to be changed later depending on bugs
+    """
+
+    def __init__(self, hook_caller):
+        self.__hook_caller = hook_caller
+
+    def __dir__(self):
+        return dir(self.__hook_caller)
+
+    def __getattr__(self, key, _wraps=functools.wraps):
+        hook = getattr(self.__hook_caller, key)
+        if key not in imply_paths_hooks:
+            self.__dict__[key] = hook
+            return hook
+        else:
+            path_var, fspath_var = imply_paths_hooks[key]
+
+            @_wraps(hook)
+            def fixed_hook(**kw):
+                path_value: Optional[Path] = kw.pop(path_var, None)
+                fspath_value: Optional[LEGACY_PATH] = kw.pop(fspath_var, None)
+                if fspath_value is not None:
+                    warnings.warn(
+                        HOOK_LEGACY_PATH_ARG.format(
+                            pylib_path_arg=fspath_var, pathlib_path_arg=path_var
+                        ),
+                        stacklevel=2,
+                    )
+                if path_value is not None:
+                    if fspath_value is not None:
+                        _check_path(path_value, fspath_value)
+                    else:
+                        fspath_value = legacy_path(path_value)
+                else:
+                    assert fspath_value is not None
+                    path_value = Path(fspath_value)
+
+                kw[path_var] = path_value
+                kw[fspath_var] = fspath_value
+                return hook(**kw)
+
+            fixed_hook.__name__ = key
+            self.__dict__[key] = fixed_hook
+            return fixed_hook

venv/lib/python3.11/site-packages/_pytest/config/exceptions.py

@@ -0,0 +1,11 @@
+from _pytest.compat import final
+
+
+@final
+class UsageError(Exception):
+    """Error in pytest usage or invocation."""
+
+
+class PrintHelp(Exception):
+    """Raised when pytest should print its help to skip the rest of the
+    argument parsing and validation."""

venv/lib/python3.11/site-packages/_pytest/config/findpaths.py

@@ -0,0 +1,225 @@
+import os
+import sys
+from pathlib import Path
+from typing import Dict
+from typing import Iterable
+from typing import List
+from typing import Optional
+from typing import Sequence
+from typing import Tuple
+from typing import TYPE_CHECKING
+from typing import Union
+
+import iniconfig
+
+from .exceptions import UsageError
+from _pytest.outcomes import fail
+from _pytest.pathlib import absolutepath
+from _pytest.pathlib import commonpath
+
+if TYPE_CHECKING:
+    from . import Config
+
+
+def _parse_ini_config(path: Path) -> iniconfig.IniConfig:
+    """Parse the given generic '.ini' file using legacy IniConfig parser, returning
+    the parsed object.
+
+    Raise UsageError if the file cannot be parsed.
+    """
+    try:
+        return iniconfig.IniConfig(str(path))
+    except iniconfig.ParseError as exc:
+        raise UsageError(str(exc)) from exc
+
+
+def load_config_dict_from_file(
+    filepath: Path,
+) -> Optional[Dict[str, Union[str, List[str]]]]:
+    """Load pytest configuration from the given file path, if supported.
+
+    Return None if the file does not contain valid pytest configuration.
+    """
+
+    # Configuration from ini files are obtained from the [pytest] section, if present.
+    if filepath.suffix == ".ini":
+        iniconfig = _parse_ini_config(filepath)
+
+        if "pytest" in iniconfig:
+            return dict(iniconfig["pytest"].items())
+        else:
+            # "pytest.ini" files are always the source of configuration, even if empty.
+            if filepath.name == "pytest.ini":
+                return {}
+
+    # '.cfg' files are considered if they contain a "[tool:pytest]" section.
+    elif filepath.suffix == ".cfg":
+        iniconfig = _parse_ini_config(filepath)
+
+        if "tool:pytest" in iniconfig.sections:
+            return dict(iniconfig["tool:pytest"].items())
+        elif "pytest" in iniconfig.sections:
+            # If a setup.cfg contains a "[pytest]" section, we raise a failure to indicate users that
+            # plain "[pytest]" sections in setup.cfg files is no longer supported (#3086).
+            fail(CFG_PYTEST_SECTION.format(filename="setup.cfg"), pytrace=False)
+
+    # '.toml' files are considered if they contain a [tool.pytest.ini_options] table.
+    elif filepath.suffix == ".toml":
+        if sys.version_info >= (3, 11):
+            import tomllib
+        else:
+            import tomli as tomllib
+
+        toml_text = filepath.read_text(encoding="utf-8")
+        try:
+            config = tomllib.loads(toml_text)
+        except tomllib.TOMLDecodeError as exc:
+            raise UsageError(f"{filepath}: {exc}") from exc
+
+        result = config.get("tool", {}).get("pytest", {}).get("ini_options", None)
+        if result is not None:
+            # TOML supports richer data types than ini files (strings, arrays, floats, ints, etc),
+            # however we need to convert all scalar values to str for compatibility with the rest
+            # of the configuration system, which expects strings only.
+            def make_scalar(v: object) -> Union[str, List[str]]:
+                return v if isinstance(v, list) else str(v)
+
+            return {k: make_scalar(v) for k, v in result.items()}
+
+    return None
+
+
+def locate_config(
+    args: Iterable[Path],
+) -> Tuple[Optional[Path], Optional[Path], Dict[str, Union[str, List[str]]]]:
+    """Search in the list of arguments for a valid ini-file for pytest,
+    and return a tuple of (rootdir, inifile, cfg-dict)."""
+    config_names = [
+        "pytest.ini",
+        ".pytest.ini",
+        "pyproject.toml",
+        "tox.ini",
+        "setup.cfg",
+    ]
+    args = [x for x in args if not str(x).startswith("-")]
+    if not args:
+        args = [Path.cwd()]
+    for arg in args:
+        argpath = absolutepath(arg)
+        for base in (argpath, *argpath.parents):
+            for config_name in config_names:
+                p = base / config_name
+                if p.is_file():
+                    ini_config = load_config_dict_from_file(p)
+                    if ini_config is not None:
+                        return base, p, ini_config
+    return None, None, {}
+
+
+def get_common_ancestor(paths: Iterable[Path]) -> Path:
+    common_ancestor: Optional[Path] = None
+    for path in paths:
+        if not path.exists():
+            continue
+        if common_ancestor is None:
+            common_ancestor = path
+        else:
+            if common_ancestor in path.parents or path == common_ancestor:
+                continue
+            elif path in common_ancestor.parents:
+                common_ancestor = path
+            else:
+                shared = commonpath(path, common_ancestor)
+                if shared is not None:
+                    common_ancestor = shared
+    if common_ancestor is None:
+        common_ancestor = Path.cwd()
+    elif common_ancestor.is_file():
+        common_ancestor = common_ancestor.parent
+    return common_ancestor
+
+
+def get_dirs_from_args(args: Iterable[str]) -> List[Path]:
+    def is_option(x: str) -> bool:
+        return x.startswith("-")
+
+    def get_file_part_from_node_id(x: str) -> str:
+        return x.split("::")[0]
+
+    def get_dir_from_path(path: Path) -> Path:
+        if path.is_dir():
+            return path
+        return path.parent
+
+    def safe_exists(path: Path) -> bool:
+        # This can throw on paths that contain characters unrepresentable at the OS level,
+        # or with invalid syntax on Windows (https://bugs.python.org/issue35306)
+        try:
+            return path.exists()
+        except OSError:
+            return False
+
+    # These look like paths but may not exist
+    possible_paths = (
+        absolutepath(get_file_part_from_node_id(arg))
+        for arg in args
+        if not is_option(arg)
+    )
+
+    return [get_dir_from_path(path) for path in possible_paths if safe_exists(path)]
+
+
+CFG_PYTEST_SECTION = "[pytest] section in {filename} files is no longer supported, change to [tool:pytest] instead."
+
+
+def determine_setup(
+    inifile: Optional[str],
+    args: Sequence[str],
+    rootdir_cmd_arg: Optional[str] = None,
+    config: Optional["Config"] = None,
+) -> Tuple[Path, Optional[Path], Dict[str, Union[str, List[str]]]]:
+    rootdir = None
+    dirs = get_dirs_from_args(args)
+    if inifile:
+        inipath_ = absolutepath(inifile)
+        inipath: Optional[Path] = inipath_
+        inicfg = load_config_dict_from_file(inipath_) or {}
+        if rootdir_cmd_arg is None:
+            rootdir = inipath_.parent
+    else:
+        ancestor = get_common_ancestor(dirs)
+        rootdir, inipath, inicfg = locate_config([ancestor])
+        if rootdir is None and rootdir_cmd_arg is None:
+            for possible_rootdir in (ancestor, *ancestor.parents):
+                if (possible_rootdir / "setup.py").is_file():
+                    rootdir = possible_rootdir
+                    break
+            else:
+                if dirs != [ancestor]:
+                    rootdir, inipath, inicfg = locate_config(dirs)
+                if rootdir is None:
+                    if config is not None:
+                        cwd = config.invocation_params.dir
+                    else:
+                        cwd = Path.cwd()
+                    rootdir = get_common_ancestor([cwd, ancestor])
+                    if is_fs_root(rootdir):
+                        rootdir = ancestor
+    if rootdir_cmd_arg:
+        rootdir = absolutepath(os.path.expandvars(rootdir_cmd_arg))
+        if not rootdir.is_dir():
+            raise UsageError(
+                "Directory '{}' not found. Check your '--rootdir' option.".format(
+                    rootdir
+                )
+            )
+    assert rootdir is not None
+    return rootdir, inipath, inicfg or {}
+
+
+def is_fs_root(p: Path) -> bool:
+    r"""
+    Return True if the given path is pointing to the root of the
+    file system ("/" on Unix and "C:\\" on Windows for example).
+    """
+    return os.path.splitdrive(str(p))[1] == os.sep