diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
new file mode 100644
index 0000000..34a3083
--- /dev/null
+++ b/.github/workflows/unit-tests.yml
@@ -0,0 +1,39 @@
+name: Unit tests
+
+on: [push, pull_request]
+
+jobs:
+  unit_tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.12']
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Setup PDM
+        uses: pdm-project/setup-pdm@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: true
+
+      - name: Install dependencies
+        run: make install
+
+      - name: Run unit tests
+        run: pdm run unit-test
+
+      - name: Generate coverage report
+        run: pdm run coverage
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/Makefile b/Makefile
index 5286207..50bf33b 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@ unit-test: ## Unit test Command Line Assistant
 	@echo "Tests completed."
 
 coverage: ## Generate coverage report from unit-tests
-	coverage xml
+	@coverage xml
 
 help: ## Show available make commands
 	@echo 'Usage: make <OPTIONS> ... <TARGETS>'
@@ -37,3 +37,4 @@ clean: ## Clean project files
 	@find . -name '*.pyc' -exec rm -f {} +
 	@find . -name '*.pyo' -exec rm -f {} +
 	@rm -rf .pdm-build .ruff_cache .coverage .pdm-python dist
+	@coverage erase
diff --git a/pdm.lock b/pdm.lock
index da21d2d..7359d90 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,22 +5,11 @@
 groups = ["default", "dev"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:a45c66cfbf86f0eb3410f07bf675a51fdf3427c58e851a1cae6e827d6456ec31"
+content_hash = "sha256:02a81a774fa78f23aa778237d3b3b3c9ace68940fb80630a584395f49e56fbd3"
 
 [[metadata.targets]]
 requires_python = ">=3.9"
 
-[[package]]
-name = "cachetools"
-version = "5.5.0"
-requires_python = ">=3.7"
-summary = "Extensible memoizing collections and decorators"
-groups = ["dev"]
-files = [
-    {file = "cachetools-5.5.0-py3-none-any.whl", hash = "sha256:02134e8439cdc2ffb62023ce1debca2944c3f289d66bb17ead3ab3dede74b292"},
-    {file = "cachetools-5.5.0.tar.gz", hash = "sha256:2cc24fb4cbe39633fb7badd9db9ca6295d766d9c2995f245725a46715d050f2a"},
-]
-
 [[package]]
 name = "certifi"
 version = "2024.8.30"
@@ -32,17 +21,6 @@ files = [
     {file = "certifi-2024.8.30.tar.gz", hash = "sha256:bec941d2aa8195e248a60b31ff9f0558284cf01a52591ceda73ea9afffd69fd9"},
 ]
 
-[[package]]
-name = "chardet"
-version = "5.2.0"
-requires_python = ">=3.7"
-summary = "Universal encoding detector for Python 3"
-groups = ["dev"]
-files = [
-    {file = "chardet-5.2.0-py3-none-any.whl", hash = "sha256:e1cf59446890a00105fe7b7912492ea04b6e6f06d4b742b2c788469e34c82970"},
-    {file = "chardet-5.2.0.tar.gz", hash = "sha256:1b3b6ff479a8c414bc3fa2c0852995695c4a026dcd6d0633b2dd092ca39c1cf7"},
-]
-
 [[package]]
 name = "charset-normalizer"
 version = "3.4.0"
@@ -135,6 +113,7 @@ version = "0.4.6"
 requires_python = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 summary = "Cross-platform colored terminal text."
 groups = ["dev"]
+marker = "sys_platform == \"win32\""
 files = [
     {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
@@ -287,16 +266,6 @@ files = [
     {file = "coverage-7.6.4.tar.gz", hash = "sha256:29fc0f17b1d3fea332f8001d4558f8214af7f1d87a345f3a133c901d60347c73"},
 ]
 
-[[package]]
-name = "distlib"
-version = "0.3.9"
-summary = "Distribution utilities"
-groups = ["dev"]
-files = [
-    {file = "distlib-0.3.9-py2.py3-none-any.whl", hash = "sha256:47f8c22fd27c27e25a65601af709b38e4f0a45ea4fc2e710f65755fa8caaaf87"},
-    {file = "distlib-0.3.9.tar.gz", hash = "sha256:a60f20dea646b8a33f3e7772f74dc0b2d0772d2837ee1342a00645c81edf9403"},
-]
-
 [[package]]
 name = "exceptiongroup"
 version = "1.2.2"
@@ -309,17 +278,6 @@ files = [
     {file = "exceptiongroup-1.2.2.tar.gz", hash = "sha256:47c2edf7c6738fafb49fd34290706d1a1a2f4d1c6df275526b62cbb4aa5393cc"},
 ]
 
-[[package]]
-name = "filelock"
-version = "3.16.1"
-requires_python = ">=3.8"
-summary = "A platform independent file lock."
-groups = ["dev"]
-files = [
-    {file = "filelock-3.16.1-py3-none-any.whl", hash = "sha256:2082e5703d51fbf98ea75855d9d5527e33d8ff23099bec374a134febee6946b0"},
-    {file = "filelock-3.16.1.tar.gz", hash = "sha256:c249fbfcd5db47e5e2d6d62198e565475ee65e4831e2561c8e313fa7eb961435"},
-]
-
 [[package]]
 name = "idna"
 version = "3.10"
@@ -394,17 +352,6 @@ files = [
     {file = "packaging-24.1.tar.gz", hash = "sha256:026ed72c8ed3fcce5bf8950572258698927fd1dbda10a5e981cdf0ac37f4f002"},
 ]
 
-[[package]]
-name = "platformdirs"
-version = "4.3.6"
-requires_python = ">=3.8"
-summary = "A small Python package for determining appropriate platform-specific dirs, e.g. a `user data dir`."
-groups = ["dev"]
-files = [
-    {file = "platformdirs-4.3.6-py3-none-any.whl", hash = "sha256:73e575e1408ab8103900836b97580d5307456908a03e92031bab39e4554cc3fb"},
-    {file = "platformdirs-4.3.6.tar.gz", hash = "sha256:357fb2acbc885b0419afd3ce3ed34564c13c9b95c89360cd9563f73aa5e2b907"},
-]
-
 [[package]]
 name = "pluggy"
 version = "1.5.0"
@@ -437,21 +384,6 @@ files = [
     {file = "pygments-2.18.0.tar.gz", hash = "sha256:786ff802f32e91311bff3889f6e9a86e81505fe99f2735bb6d60ae0c5004f199"},
 ]
 
-[[package]]
-name = "pyproject-api"
-version = "1.8.0"
-requires_python = ">=3.8"
-summary = "API to interact with the python pyproject.toml based projects"
-groups = ["dev"]
-dependencies = [
-    "packaging>=24.1",
-    "tomli>=2.0.1; python_version < \"3.11\"",
-]
-files = [
-    {file = "pyproject_api-1.8.0-py3-none-any.whl", hash = "sha256:3d7d347a047afe796fd5d1885b1e391ba29be7169bd2f102fcd378f04273d228"},
-    {file = "pyproject_api-1.8.0.tar.gz", hash = "sha256:77b8049f2feb5d33eefcc21b57f1e279636277a8ac8ad6b5871037b243778496"},
-]
-
 [[package]]
 name = "pytest"
 version = "8.3.3"
@@ -587,30 +519,6 @@ files = [
     {file = "tomli-2.0.2.tar.gz", hash = "sha256:d46d457a85337051c36524bc5349dd91b1877838e2979ac5ced3e710ed8a60ed"},
 ]
 
-[[package]]
-name = "tox"
-version = "4.23.2"
-requires_python = ">=3.8"
-summary = "tox is a generic virtualenv management and test command line tool"
-groups = ["dev"]
-dependencies = [
-    "cachetools>=5.5",
-    "chardet>=5.2",
-    "colorama>=0.4.6",
-    "filelock>=3.16.1",
-    "packaging>=24.1",
-    "platformdirs>=4.3.6",
-    "pluggy>=1.5",
-    "pyproject-api>=1.8",
-    "tomli>=2.0.1; python_version < \"3.11\"",
-    "typing-extensions>=4.12.2; python_version < \"3.11\"",
-    "virtualenv>=20.26.6",
-]
-files = [
-    {file = "tox-4.23.2-py3-none-any.whl", hash = "sha256:452bc32bb031f2282881a2118923176445bac783ab97c874b8770ab4c3b76c38"},
-    {file = "tox-4.23.2.tar.gz", hash = "sha256:86075e00e555df6e82e74cfc333917f91ecb47ffbc868dcafbd2672e332f4a2c"},
-]
-
 [[package]]
 name = "typing-extensions"
 version = "4.12.2"
@@ -634,23 +542,6 @@ files = [
     {file = "urllib3-2.2.3.tar.gz", hash = "sha256:e7d814a81dad81e6caf2ec9fdedb284ecc9c73076b62654547cc64ccdcae26e9"},
 ]
 
-[[package]]
-name = "virtualenv"
-version = "20.27.1"
-requires_python = ">=3.8"
-summary = "Virtual Python Environment builder"
-groups = ["dev"]
-dependencies = [
-    "distlib<1,>=0.3.7",
-    "filelock<4,>=3.12.2",
-    "importlib-metadata>=6.6; python_version < \"3.8\"",
-    "platformdirs<5,>=3.9.1",
-]
-files = [
-    {file = "virtualenv-20.27.1-py3-none-any.whl", hash = "sha256:f11f1b8a29525562925f745563bfd48b189450f61fb34c4f9cc79dd5aa32a1f4"},
-    {file = "virtualenv-20.27.1.tar.gz", hash = "sha256:142c6be10212543b32c6c45d3d3893dff89112cc588b7d0879ae5a1ec03a47ba"},
-]
-
 [[package]]
 name = "zipp"
 version = "3.20.2"
diff --git a/pyproject.toml b/pyproject.toml
index 426339c..9d6678d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,15 +56,19 @@ distribution = true
 
 [tool.pdm.dev-dependencies]
 dev = [
-    "pytest>=8.3.3",
-    "tox>=4.23.2",
-    "pytest-cov>=6.0.0",
-    "pytest-randomly>=3.16.0",
-    "coverage>=7.6.4",
-    "pytest-sugar>=1.0.0",
-    "pytest-clarity>=1.0.1",
+    "pytest==8.3.3",
+    "pytest-cov==6.0.0",
+    "pytest-randomly==3.16.0",
+    "coverage==7.6.4",
+    "pytest-sugar==1.0.0",
+    "pytest-clarity==1.0.1",
 ]
 
+[tool.pdm.scripts]
+unit-test = "pdm run make unit-test"
+coverage = "pdm run make coverage"
+
+
 [tool.pytest.init_options]
 testpaths = ["tests"]
 addopts = ["--cov-report=term-missing", "--cov-report=html"]
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index dea316e..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[tox]
-skipsdist = true
-envlist = py{39,312}
-
-[gh-actions]
-python =
-    3.9: py39
-    3.12: py312
-
-[testenv]
-passenv = PYTHON_VERSION
-allowlist_externals = make
-commands =
-    make unit-test
-
-[testenv:coverage]
-passenv = PYTHON_VERSION
-allowlist_externals = make
-commands =
-    make coverage