Решение контрольной работы. Семенский Роман Николаевич Б-42

.gitignore

@@ -0,0 +1,176 @@
+# Created by https://www.toptal.com/developers/gitignore/api/python
+# Edit at https://www.toptal.com/developers/gitignore?templates=python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+### Python Patch ###
+# Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration
+poetry.toml
+
+# ruff
+.ruff_cache/
+
+# LSP config files
+pyrightconfig.json
+
+# End of https://www.toptal.com/developers/gitignore/api/python

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 rmnsmnsk
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -2,6 +2,8 @@
 
 Темы: Git и GitHub, стандарты оформления кода, хорошие практики, тестирование.
 
+Работу выполнил Семенский Роман Николаевич из группы Б-42.
+
 ## Этапы выполнения работы
 
 - Сделать **fork** этого репозитория

src/bin_search.py

@@ -1,6 +1,21 @@
-def binSearch(xs: list[int], x: int):
+def bin_search(xs: list[int], x: int):
+
+    if not isinstance(xs, list) or not xs:
+        return -1
+
+    if not isinstance(x, int):
+        return -1
+
+    for i in xs:
+        if not isinstance(i, int):
+            return -1
+
+    if xs != sorted(xs):
+        return -1
+
     left, right = 0, len(xs) - 1
-    while left < right:
+
+    while left <= right:
         mid = (left + right) // 2
         if xs[mid] == x:
             return mid

src/checksum.py

@@ -1,14 +1,35 @@
-def modulo11Checksum(ISBNNumber: str):
+def modulo11_checksum(isbn_number: str):
 
-    digits = [int(char) for char in ISBNNumber if char.isdigit()]
+    if not isinstance(isbn_number, str):
+        return False
 
-    checkDigit = digits[-1]
+    digits = [int(char) for char in isbn_number if char.isdigit()]
 
+    if len(digits) != 10:
+        return False
+
+    check_digit = digits[-1]
     total = 0
+
     for i in range(len(digits) - 1):
-        weight = 10
+        weight = 10 - i
         digit = digits[i]
         total += digit * weight
 
-    checksum = total + checkDigit
-    return checksum % 11 == 0
+    total += check_digit
+    return total % 11 == 0
+
+if __name__ == "__main__":
+    print("Проверка ISBN-10. Для выхода введите -1")
+
+    while True:
+        isbn = input("Введите ISBN: ")
+
+        if isbn == "-1":
+            print("Выход")
+            break
+
+        if modulo11_checksum(isbn):
+            print("correct")
+        else:
+            print("incorrect")

test/test_bin_searh.py

@@ -1,13 +1,33 @@
-from src.bin_search import binSearch
+from src.bin_search import bin_search
 
 
 def test_middle():
-    assert binSearch([1, 2, 3, 4, 5], 4) == 3
+    assert bin_search([1, 2, 3, 4, 5], 4) == 3
 
 
 def test_start():
-    assert binSearch([1, 2, 3, 4], 2) == 1
+    assert bin_search([1, 2, 3, 4], 2) == 1
 
 
 def test_not_in_list():
-    assert binSearch([1, 2, 3, 4], 5) == -1
+    assert bin_search([1, 2, 3, 4], 5) == -1
+
+def test_single():
+    assert bin_search([6], 6) == 0
+    assert bin_search([2], 3) == -1
+
+def test_empty():
+    assert bin_search([], 8) == -1
+
+def test_first():
+    assert bin_search([1, 2, 3, 4], 1) == 0
+
+def test_last():
+    assert bin_search([1, 2, 3, 8], 8) == 3
+
+def test_invaild_input():
+     assert bin_search(None, 5) == -1
+     assert bin_search([1, 2, "с"], 5) == -1
+
+def test_unsorted_array():
+    assert bin_search([3, 1, 2], 2) == -1

test/test_checksum.py

@@ -1,9 +1,19 @@
-from src.checksum import modulo11Checksum
+from src.checksum import modulo11_checksum
 
 
 def test_good():
-    assert modulo11Checksum("2-266-11156-8")
+    assert modulo11_checksum("2-266-11156-6")
 
+def test_only_digits():
+    assert modulo11_checksum("2266111566")
+
+def test_wrong_length():
+    assert not modulo11_checksum("12323")
+    assert not modulo11_checksum("1234123215678901234")
 
 def test_bad():
-    assert not modulo11Checksum("2-266-11156-3")
+    assert not modulo11_checksum("2-266-11156-3")
+
+def test_invaild_input():
+    assert not modulo11_checksum(None)
+    assert not modulo11_checksum("")