Hydrilla

# SPDX-License-Identifier: CC0-1.0

# Copyright (C) 2022 Wojtek Kosior <koszko@koszko.org>

#

# Available under the terms of Creative Commons Zero v1.0 Universal.

import re

variable_word_re = re.compile(r'^<(.+)>$')

def process_command(command, expected_command):

    """Validate the command line and extract its variable parts (if any)."""

    assert len(command) == len(expected_command)

    extracted = {}

    for word, expected_word in zip(command, expected_command):

        match = variable_word_re.match(expected_word)

        if match:

            extracted[match.group(1)] = word

        else:

            assert word == expected_word

    return extracted

def run_missing_executable(command, **kwargs):

    """

    Instead of running a command, raise FileNotFoundError as if its executable

    was missing.

    """

    raise FileNotFoundError('dummy')

class MockedCompletedProcess:

    """

    Object with some fields similar to those of subprocess.CompletedProcess.

    """

    def __init__(self, args, returncode=0,

                 stdout='some output', stderr='some error output',

                 text_output=True):

        """

        Initialize MockedCompletedProcess. Convert strings to bytes if needed.

        """

        self.args       = args

        self.returncode = returncode

        if type(stdout) is str and not text_output:

            stdout = stdout.encode()

        if type(stderr) is str and not text_output:

            stderr = stderr.encode()

        self.stdout = stdout

        self.stderr = stderr