diff --git a/.gitignore b/.gitignore
index eb30af4..ef06f00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,11 @@ __pycache__
 /.pdm-build/
 /.pdm-python
 
+# test coverage
+/.coverage
+/htmlcov/
+/coverage.xml
+
 # Eclipse
 /.project
 /.pydevproject
diff --git a/pdm.lock b/pdm.lock
index f87d10d..68ec7a8 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,7 @@
 groups = ["default", "dev"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:7e90ada86c2ad683a8838af9850b487288afe4345d642016e58e0125c934e467"
+content_hash = "sha256:cf10c346cfa438b268bfb7d8ca5e9e89da483ad09800148dceafa07b9f8ccfa9"
 
 [[metadata.targets]]
 requires_python = ">=3.10,<3.14"
@@ -122,6 +122,133 @@ files = [
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
 ]
 
+[[package]]
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+summary = "Code coverage measurement for Python"
+groups = ["dev"]
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+    {file = "coverage-7.6.10-cp313-cp313t-win_amd64.whl", hash = "sha256:54a5f0f43950a36312155dae55c505a76cd7f2b12d26abeebbe7a0b36dbc868d"},
+    {file = "coverage-7.6.10-pp39.pp310-none-any.whl", hash = "sha256:fd34e7b3405f0cc7ab03d54a334c17a9e802897580d964bd8c2001f4b9fd488f"},
+    {file = "coverage-7.6.10.tar.gz", hash = "sha256:7fb105327c8f8f0682e29843e2ff96af9dcbe5bab8eeb4b398c6a33a16d80a23"},
+]
+
 [[package]]
 name = "deprecated"
 version = "1.2.18"
@@ -575,6 +702,21 @@ files = [
     {file = "pytest-8.3.4.tar.gz", hash = "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"},
 ]
 
+[[package]]
+name = "pytest-cov"
+version = "6.0.0"
+requires_python = ">=3.9"
+summary = "Pytest plugin for measuring coverage."
+groups = ["dev"]
+dependencies = [
+    "coverage[toml]>=7.5",
+    "pytest>=4.6",
+]
+files = [
+    {file = "pytest-cov-6.0.0.tar.gz", hash = "sha256:fde0b595ca248bb8e2d76f020b465f3b107c9632e6a1d1705f17834c89dcadc0"},
+    {file = "pytest_cov-6.0.0-py3-none-any.whl", hash = "sha256:eee6f1b9e61008bd34975a4d5bab25801eb31898b032dd55addc93e96fcaaa35"},
+]
+
 [[package]]
 name = "pytest-rerunfailures"
 version = "15.0"
diff --git a/pyproject.toml b/pyproject.toml
index 9242f82..e6cd6ca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,20 +60,6 @@ getter = "version:get_version"  # uses get_version() of <project_root>/version.p
 write_to = "kleinanzeigen_bot/_version.py"
 write_template = "__version__ = '{}'\n"
 
-[tool.pdm.dev-dependencies]
-dev = [
-  "autopep8",
-  "bandit",
-  "toml", # required by bandit
-  "tomli", # required by bandit
-  "pytest",
-  "pytest-rerunfailures",
-  "pyinstaller",
-  "pylint",
-  "mypy",
-  "pyright",
-]
-
 [tool.pdm.scripts]  # https://pdm-project.org/latest/usage/scripts/
 app   = "python -m kleinanzeigen_bot"
 compile.cmd = "python -O -m PyInstaller pyinstaller.spec --clean"
@@ -234,7 +220,22 @@ max-positional-arguments = 6  # max. number of positional args for function / me
 #####################
 [tool.pytest.ini_options]
 # https://docs.pytest.org/en/stable/reference.html#confval-addopts
-addopts = "--strict-markers -p no:cacheprovider --doctest-modules --ignore=kleinanzeigen_bot/__main__.py"
+addopts = "--strict-markers -p no:cacheprovider --doctest-modules --cov=kleinanzeigen_bot --cov-report=term-missing --ignore=kleinanzeigen_bot/__main__.py"
 markers = [
   "itest: marks a test as an integration test (i.e. a test with external dependencies)"
 ]
+
+[dependency-groups]
+dev = [
+    "autopep8",
+    "bandit",
+    "toml",
+    "tomli",
+    "pytest",
+    "pytest-rerunfailures",
+    "pyinstaller",
+    "pylint",
+    "mypy",
+    "pyright",
+    "pytest-cov>=6.0.0",
+]
diff --git a/tests/__init__.py b/tests/__init__.py
deleted file mode 100644
index 4f752ed..0000000
--- a/tests/__init__.py
+++ /dev/null
@@ -1,14 +0,0 @@
-"""
-SPDX-FileCopyrightText: © Sebastian Thomschke and contributors
-SPDX-License-Identifier: AGPL-3.0-or-later
-SPDX-ArtifactOfProjectHomePage: https://github.com/Second-Hand-Friends/kleinanzeigen-bot/
-"""
-import logging
-from typing import Final
-
-from kleinanzeigen_bot import utils
-
-utils.configure_console_logging()
-
-LOG:Final[logging.Logger] = logging.getLogger("kleinanzeigen_bot")
-LOG.setLevel(logging.DEBUG)
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..46cc86e
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,63 @@
+"""
+SPDX-FileCopyrightText: © Sebastian Thomschke and contributors
+SPDX-License-Identifier: AGPL-3.0-or-later
+SPDX-ArtifactOfProjectHomePage: https://github.com/Second-Hand-Friends/kleinanzeigen-bot/
+"""
+import logging
+from typing import Any, Final
+
+import pytest
+
+from kleinanzeigen_bot import utils
+from kleinanzeigen_bot.i18n import get_translating_logger
+
+utils.configure_console_logging()
+
+LOG:Final[logging.Logger] = get_translating_logger("kleinanzeigen_bot")
+LOG.setLevel(logging.DEBUG)
+
+
+@pytest.fixture
+def sample_config() -> dict[str, Any]:
+    return {
+        "login": {
+            "username": "test_user",
+            "password": "test_password"
+        },
+        "browser": {
+            "arguments": [],
+            "binary_location": None,
+            "extensions": [],
+            "use_private_window": True,
+            "user_data_dir": None,
+            "profile_name": None
+        },
+        "ad_defaults": {
+            "description": {
+                "prefix": "",
+                "suffix": ""
+            }
+        },
+        "ad_files": ["ads/*.yaml"]
+    }
+
+
+@pytest.fixture
+def sample_ad_config() -> dict[str, Any]:
+    return {
+        "title": "Test Item",
+        "description": "Test Description",
+        "price": "100",
+        "price_type": "FIXED",
+        "shipping_type": "PICKUP",
+        "active": True,
+        "contact": {
+            "name": "Test User",
+            "zipcode": "12345"
+        },
+        "images": [],
+        "id": None,
+        "created_on": None,
+        "updated_on": None,
+        "republication_interval": 30
+    }
diff --git a/tests/test_web_scraping_mixin.py b/tests/integration/test_web_scraping_mixin.py
similarity index 100%
rename from tests/test_web_scraping_mixin.py
rename to tests/integration/test_web_scraping_mixin.py
diff --git a/tests/unit/test_bot.py b/tests/unit/test_bot.py
new file mode 100644
index 0000000..2eb6fb0
--- /dev/null
+++ b/tests/unit/test_bot.py
@@ -0,0 +1,33 @@
+"""
+SPDX-FileCopyrightText: © Sebastian Thomschke and contributors
+SPDX-License-Identifier: AGPL-3.0-or-later
+SPDX-ArtifactOfProjectHomePage: https://github.com/Second-Hand-Friends/kleinanzeigen-bot/
+"""
+import pytest
+from kleinanzeigen_bot import KleinanzeigenBot
+
+
+class TestKleinanzeigenBot:
+    @pytest.fixture
+    def bot(self) -> KleinanzeigenBot:
+        return KleinanzeigenBot()
+
+    def test_parse_args_help(self, bot: KleinanzeigenBot) -> None:
+        """Test parsing of help command"""
+        bot.parse_args(["app", "help"])
+        assert bot.command == "help"
+        assert bot.ads_selector == "due"
+        assert not bot.keep_old_ads
+
+    def test_parse_args_publish(self, bot: KleinanzeigenBot) -> None:
+        """Test parsing of publish command with options"""
+        bot.parse_args(["app", "publish", "--ads=all", "--keep-old"])
+        assert bot.command == "publish"
+        assert bot.ads_selector == "all"
+        assert bot.keep_old_ads
+
+    def test_get_version(self, bot: KleinanzeigenBot) -> None:
+        """Test version retrieval"""
+        version = bot.get_version()
+        assert isinstance(version, str)
+        assert len(version) > 0
diff --git a/tests/test_i18n.py b/tests/unit/test_i18n.py
similarity index 100%
rename from tests/test_i18n.py
rename to tests/unit/test_i18n.py
diff --git a/tests/test_utils.py b/tests/unit/test_utils.py
similarity index 100%
rename from tests/test_utils.py
rename to tests/unit/test_utils.py