diff --git a/01OS/poetry.lock b/01OS/poetry.lock
index e29c468..748742c 100644
--- a/01OS/poetry.lock
+++ b/01OS/poetry.lock
@@ -1667,6 +1667,17 @@ zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
 docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
 testing = ["jaraco.collections", "pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy", "pytest-ruff (>=0.2.1)", "zipp (>=3.17)"]
 
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
 [[package]]
 name = "inquirer"
 version = "3.2.4"
@@ -3291,6 +3302,21 @@ files = [
 docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
 test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
 
+[[package]]
+name = "pluggy"
+version = "1.4.0"
+description = "plugin and hook calling mechanisms for python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pluggy-1.4.0-py3-none-any.whl", hash = "sha256:7db9f7b503d67d1c5b95f59773ebb58a8c1c288129a88665838012cfb07b8981"},
+    {file = "pluggy-1.4.0.tar.gz", hash = "sha256:8c85c2876142a764e5b7548e7d9a0e0ddb46f5185161049a79b7e974454223be"},
+]
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
 [[package]]
 name = "plyer"
 version = "2.1.0"
@@ -6617,6 +6643,28 @@ files = [
 packaging = ">=21.3"
 Pillow = ">=8.0.0"
 
+[[package]]
+name = "pytest"
+version = "8.1.1"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pytest-8.1.1-py3-none-any.whl", hash = "sha256:2a8386cfc11fa9d2c50ee7b2a57e7d898ef90470a7a34c4b949ff59662bb78b7"},
+    {file = "pytest-8.1.1.tar.gz", hash = "sha256:ac978141a75948948817d360297b7aae0fcb9d6ff6bc9ec6d514b85d5a65c044"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=1.4,<2.0"
+tomli = {version = ">=1", markers = "python_version < \"3.11\""}
+
+[package.extras]
+testing = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -8417,4 +8465,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.9,<3.12"
-content-hash = "6aa948d6a556517941cd0f399e509be40e273665886b5e2cd6479884a91076ad"
+content-hash = "8be29df37abd9cbe801a8ef165d05db22311f58a6119d5676d8d6a706e155a1a"
diff --git a/01OS/pyproject.toml b/01OS/pyproject.toml
index 593f1b9..2ba825b 100644
--- a/01OS/pyproject.toml
+++ b/01OS/pyproject.toml
@@ -41,6 +41,7 @@ build-backend = "poetry.core.masonry.api"
 black = "^23.10.1"
 isort = "^5.12.0"
 pre-commit = "^3.6.2"
+pytest = "^8.1.1"
 
 [tool.black]
 target-version = ['py311']
diff --git a/01OS/tests/__init__.py b/01OS/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/01OS/tests/sample_test.py b/01OS/tests/sample_test.py
new file mode 100644
index 0000000..0cd45d5
--- /dev/null
+++ b/01OS/tests/sample_test.py
@@ -0,0 +1,7 @@
+def hello_world():
+    return "Hello, World!"
+
+
+# A test function to assert that hello_world() returns the expected string
+def test_hello_world():
+    assert hello_world() == "Hello, World!"