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__pycache__	-	0755	-
__init__.py	3.17 KB	0644	Edit Rename Delete
_compat.py	18.37 KB	0644	Edit Rename Delete
_termui_impl.py	22.9 KB	0644	Edit Rename Delete
_textwrap.py	1.32 KB	0644	Edit Rename Delete
_unicodefun.py	3.13 KB	0644	Edit Rename Delete
_winconsole.py	7.68 KB	0644	Edit Rename Delete
core.py	108.87 KB	0644	Edit Rename Delete
decorators.py	14.52 KB	0644	Edit Rename Delete
exceptions.py	8.95 KB	0644	Edit Rename Delete
formatting.py	9.48 KB	0644	Edit Rename Delete
globals.py	1.94 KB	0644	Edit Rename Delete
parser.py	18.6 KB	0644	Edit Rename Delete
py.typed	0 B	0644	Edit Rename Delete
shell_completion.py	17.58 KB	0644	Edit Rename Delete
termui.py	28.33 KB	0644	Edit Rename Delete
testing.py	15.64 KB	0644	Edit Rename Delete
types.py	34.56 KB	0644	Edit Rename Delete
utils.py	18.32 KB	0644	Edit Rename Delete

Edit File:testing.py

import contextlib
import io
import os
import shlex
import shutil
import sys
import tempfile
import typing as t
from types import TracebackType

from . import formatting
from . import termui
from . import utils
from ._compat import _find_binary_reader

if t.TYPE_CHECKING:
    from .core import BaseCommand

class EchoingStdin:
    def __init__(self, input: t.BinaryIO, output: t.BinaryIO) -> None:
        self._input = input
        self._output = output
        self._paused = False

def __getattr__(self, x: str) -> t.Any:
        return getattr(self._input, x)

def _echo(self, rv: bytes) -> bytes:
        if not self._paused:
            self._output.write(rv)

return rv

def read(self, n: int = -1) -> bytes:
        return self._echo(self._input.read(n))

def read1(self, n: int = -1) -> bytes:
        return self._echo(self._input.read1(n))  # type: ignore

def readline(self, n: int = -1) -> bytes:
        return self._echo(self._input.readline(n))

def readlines(self) -> t.List[bytes]:
        return [self._echo(x) for x in self._input.readlines()]

def __iter__(self) -> t.Iterator[bytes]:
        return iter(self._echo(x) for x in self._input)

def __repr__(self) -> str:
        return repr(self._input)

@contextlib.contextmanager
def _pause_echo(stream: t.Optional[EchoingStdin]) -> t.Iterator[None]:
    if stream is None:
        yield
    else:
        stream._paused = True
        yield
        stream._paused = False

class _NamedTextIOWrapper(io.TextIOWrapper):
    def __init__(
        self, buffer: t.BinaryIO, name: str, mode: str, **kwargs: t.Any
    ) -> None:
        super().__init__(buffer, **kwargs)
        self._name = name
        self._mode = mode

@property
    def name(self) -> str:
        return self._name

@property
    def mode(self) -> str:
        return self._mode

def make_input_stream(
    input: t.Optional[t.Union[str, bytes, t.IO]], charset: str
) -> t.BinaryIO:
    # Is already an input stream.
    if hasattr(input, "read"):
        rv = _find_binary_reader(t.cast(t.IO, input))

if rv is not None:
            return rv

raise TypeError("Could not find binary reader for input stream.")

if input is None:
        input = b""
    elif isinstance(input, str):
        input = input.encode(charset)

return io.BytesIO(t.cast(bytes, input))

class Result:
    """Holds the captured result of an invoked CLI script."""

def __init__(
        self,
        runner: "CliRunner",
        stdout_bytes: bytes,
        stderr_bytes: t.Optional[bytes],
        return_value: t.Any,
        exit_code: int,
        exception: t.Optional[BaseException],
        exc_info: t.Optional[
            t.Tuple[t.Type[BaseException], BaseException, TracebackType]
        ] = None,
    ):
        #: The runner that created the result
        self.runner = runner
        #: The standard output as bytes.
        self.stdout_bytes = stdout_bytes
        #: The standard error as bytes, or None if not available
        self.stderr_bytes = stderr_bytes
        #: The value returned from the invoked command.
        #:
        #: .. versionadded:: 8.0
        self.return_value = return_value
        #: The exit code as integer.
        self.exit_code = exit_code
        #: The exception that happened if one did.
        self.exception = exception
        #: The traceback
        self.exc_info = exc_info

@property
    def output(self) -> str:
        """The (standard) output as unicode string."""
        return self.stdout

@property
    def stdout(self) -> str:
        """The standard output as unicode string."""
        return self.stdout_bytes.decode(self.runner.charset, "replace").replace(
            "\r\n", "\n"
        )

@property
    def stderr(self) -> str:
        """The standard error as unicode string."""
        if self.stderr_bytes is None:
            raise ValueError("stderr not separately captured")
        return self.stderr_bytes.decode(self.runner.charset, "replace").replace(
            "\r\n", "\n"
        )

def __repr__(self) -> str:
        exc_str = repr(self.exception) if self.exception else "okay"
        return f"<{type(self).__name__} {exc_str}>"

class CliRunner:
    """The CLI runner provides functionality to invoke a Click command line
    script for unittesting purposes in a isolated environment.  This only
    works in single-threaded systems without any concurrency as it changes the
    global interpreter state.

:param charset: the character set for the input and output data.
    :param env: a dictionary with environment variables for overriding.
    :param echo_stdin: if this is set to `True`, then reading from stdin writes
                       to stdout.  This is useful for showing examples in
                       some circumstances.  Note that regular prompts
                       will automatically echo the input.
    :param mix_stderr: if this is set to `False`, then stdout and stderr are
                       preserved as independent streams.  This is useful for
                       Unix-philosophy apps that have predictable stdout and
                       noisy stderr, such that each may be measured
                       independently
    """

def __init__(
        self,
        charset: str = "utf-8",
        env: t.Optional[t.Mapping[str, t.Optional[str]]] = None,
        echo_stdin: bool = False,
        mix_stderr: bool = True,
    ) -> None:
        self.charset = charset
        self.env = env or {}
        self.echo_stdin = echo_stdin
        self.mix_stderr = mix_stderr

def get_default_prog_name(self, cli: "BaseCommand") -> str:
        """Given a command object it will return the default program name
        for it.  The default is the `name` attribute or ``"root"`` if not
        set.
        """
        return cli.name or "root"

def make_env(
        self, overrides: t.Optional[t.Mapping[str, t.Optional[str]]] = None
    ) -> t.Mapping[str, t.Optional[str]]:
        """Returns the environment overrides for invoking a script."""
        rv = dict(self.env)
        if overrides:
            rv.update(overrides)
        return rv

@contextlib.contextmanager
    def isolation(
        self,
        input: t.Optional[t.Union[str, bytes, t.IO]] = None,
        env: t.Optional[t.Mapping[str, t.Optional[str]]] = None,
        color: bool = False,
    ) -> t.Iterator[t.Tuple[io.BytesIO, t.Optional[io.BytesIO]]]:
        """A context manager that sets up the isolation for invoking of a
        command line tool.  This sets up stdin with the given input data
        and `os.environ` with the overrides from the given dictionary.
        This also rebinds some internals in Click to be mocked (like the
        prompt functionality).

This is automatically done in the :meth:`invoke` method.

:param input: the input stream to put into sys.stdin.
        :param env: the environment overrides as dictionary.
        :param color: whether the output should contain color codes. The
                      application can still override this explicitly.

.. versionchanged:: 8.0
            ``stderr`` is opened with ``errors="backslashreplace"``
            instead of the default ``"strict"``.

.. versionchanged:: 4.0
            Added the ``color`` parameter.
        """
        bytes_input = make_input_stream(input, self.charset)
        echo_input = None

old_stdin = sys.stdin
        old_stdout = sys.stdout
        old_stderr = sys.stderr
        old_forced_width = formatting.FORCED_WIDTH
        formatting.FORCED_WIDTH = 80

env = self.make_env(env)

bytes_output = io.BytesIO()

if self.echo_stdin:
            bytes_input = echo_input = t.cast(
                t.BinaryIO, EchoingStdin(bytes_input, bytes_output)
            )

sys.stdin = text_input = _NamedTextIOWrapper(
            bytes_input, encoding=self.charset, name="<stdin>", mode="r"
        )

if self.echo_stdin:
            # Force unbuffered reads, otherwise TextIOWrapper reads a
            # large chunk which is echoed early.
            text_input._CHUNK_SIZE = 1  # type: ignore

sys.stdout = _NamedTextIOWrapper(
            bytes_output, encoding=self.charset, name="<stdout>", mode="w"
        )

bytes_error = None
        if self.mix_stderr:
            sys.stderr = sys.stdout
        else:
            bytes_error = io.BytesIO()
            sys.stderr = _NamedTextIOWrapper(
                bytes_error,
                encoding=self.charset,
                name="<stderr>",
                mode="w",
                errors="backslashreplace",
            )

@_pause_echo(echo_input)  # type: ignore
        def visible_input(prompt: t.Optional[str] = None) -> str:
            sys.stdout.write(prompt or "")
            val = text_input.readline().rstrip("\r\n")
            sys.stdout.write(f"{val}\n")
            sys.stdout.flush()
            return val

@_pause_echo(echo_input)  # type: ignore
        def hidden_input(prompt: t.Optional[str] = None) -> str:
            sys.stdout.write(f"{prompt or ''}\n")
            sys.stdout.flush()
            return text_input.readline().rstrip("\r\n")

@_pause_echo(echo_input)  # type: ignore
        def _getchar(echo: bool) -> str:
            char = sys.stdin.read(1)

if echo:
                sys.stdout.write(char)

sys.stdout.flush()
            return char

default_color = color

def should_strip_ansi(
            stream: t.Optional[t.IO] = None, color: t.Optional[bool] = None
        ) -> bool:
            if color is None:
                return not default_color
            return not color

old_visible_prompt_func = termui.visible_prompt_func
        old_hidden_prompt_func = termui.hidden_prompt_func
        old__getchar_func = termui._getchar
        old_should_strip_ansi = utils.should_strip_ansi  # type: ignore
        termui.visible_prompt_func = visible_input
        termui.hidden_prompt_func = hidden_input
        termui._getchar = _getchar
        utils.should_strip_ansi = should_strip_ansi  # type: ignore

old_env = {}
        try:
            for key, value in env.items():
                old_env[key] = os.environ.get(key)
                if value is None:
                    try:
                        del os.environ[key]
                    except Exception:
                        pass
                else:
                    os.environ[key] = value
            yield (bytes_output, bytes_error)
        finally:
            for key, value in old_env.items():
                if value is None:
                    try:
                        del os.environ[key]
                    except Exception:
                        pass
                else:
                    os.environ[key] = value
            sys.stdout = old_stdout
            sys.stderr = old_stderr
            sys.stdin = old_stdin
            termui.visible_prompt_func = old_visible_prompt_func
            termui.hidden_prompt_func = old_hidden_prompt_func
            termui._getchar = old__getchar_func
            utils.should_strip_ansi = old_should_strip_ansi  # type: ignore
            formatting.FORCED_WIDTH = old_forced_width

def invoke(
        self,
        cli: "BaseCommand",
        args: t.Optional[t.Union[str, t.Sequence[str]]] = None,
        input: t.Optional[t.Union[str, bytes, t.IO]] = None,
        env: t.Optional[t.Mapping[str, t.Optional[str]]] = None,
        catch_exceptions: bool = True,
        color: bool = False,
        **extra: t.Any,
    ) -> Result:
        """Invokes a command in an isolated environment.  The arguments are
        forwarded directly to the command line script, the `extra` keyword
        arguments are passed to the :meth:`~clickpkg.Command.main` function of
        the command.

This returns a :class:`Result` object.

:param cli: the command to invoke
        :param args: the arguments to invoke. It may be given as an iterable
                     or a string. When given as string it will be interpreted
                     as a Unix shell command. More details at
                     :func:`shlex.split`.
        :param input: the input data for `sys.stdin`.
        :param env: the environment overrides.
        :param catch_exceptions: Whether to catch any other exceptions than
                                 ``SystemExit``.
        :param extra: the keyword arguments to pass to :meth:`main`.
        :param color: whether the output should contain color codes. The
                      application can still override this explicitly.

.. versionchanged:: 8.0
            The result object has the ``return_value`` attribute with
            the value returned from the invoked command.

.. versionchanged:: 4.0
            Added the ``color`` parameter.

.. versionchanged:: 3.0
            Added the ``catch_exceptions`` parameter.

.. versionchanged:: 3.0
            The result object has the ``exc_info`` attribute with the
            traceback if available.
        """
        exc_info = None
        with self.isolation(input=input, env=env, color=color) as outstreams:
            return_value = None
            exception: t.Optional[BaseException] = None
            exit_code = 0

if isinstance(args, str):
                args = shlex.split(args)

try:
                prog_name = extra.pop("prog_name")
            except KeyError:
                prog_name = self.get_default_prog_name(cli)

try:
                return_value = cli.main(args=args or (), prog_name=prog_name, **extra)
            except SystemExit as e:
                exc_info = sys.exc_info()
                e_code = t.cast(t.Optional[t.Union[int, t.Any]], e.code)

if e_code is None:
                    e_code = 0

if e_code != 0:
                    exception = e

if not isinstance(e_code, int):
                    sys.stdout.write(str(e_code))
                    sys.stdout.write("\n")
                    e_code = 1

exit_code = e_code

except Exception as e:
                if not catch_exceptions:
                    raise
                exception = e
                exit_code = 1
                exc_info = sys.exc_info()
            finally:
                sys.stdout.flush()
                stdout = outstreams[0].getvalue()
                if self.mix_stderr:
                    stderr = None
                else:
                    stderr = outstreams[1].getvalue()  # type: ignore

return Result(
            runner=self,
            stdout_bytes=stdout,
            stderr_bytes=stderr,
            return_value=return_value,
            exit_code=exit_code,
            exception=exception,
            exc_info=exc_info,  # type: ignore
        )

@contextlib.contextmanager
    def isolated_filesystem(
        self, temp_dir: t.Optional[t.Union[str, os.PathLike]] = None
    ) -> t.Iterator[str]:
        """A context manager that creates a temporary directory and
        changes the current working directory to it. This isolates tests
        that affect the contents of the CWD to prevent them from
        interfering with each other.

:param temp_dir: Create the temporary directory under this
            directory. If given, the created directory is not removed
            when exiting.

.. versionchanged:: 8.0
            Added the ``temp_dir`` parameter.
        """
        cwd = os.getcwd()
        t = tempfile.mkdtemp(dir=temp_dir)
        os.chdir(t)

try:
            yield t
        finally:
            os.chdir(cwd)

if temp_dir is None:
                try:
                    shutil.rmtree(t)
                except OSError:  # noqa: B014
                    pass

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