Add test pipeline step and a basic test

.gitignore

@@ -1,3 +1,11 @@
+# Locally specific files
 .env
 .idea/
-.idea/vcs.xml
+
+# Cache
+__pycache__/
+*.pyc
+
+# Tests and Coverage
+.pytest_cache/
+.coverage*

.gitlab-ci.yml

@@ -1,5 +1,6 @@
 stages:
   - lint
+  - test
   - build
   - deploy
 
@@ -11,17 +12,24 @@ stages:
 
 .base:
     image: python:3.11.2
+    only:
+      changes:
+        - "/poetry.lock"
+        - "/pyproject.toml"
+        - "/app/*"
+
+.test:
+    extends: .base
+    stage: test
+    before_script:
+        - *install-deps
 
 .lint:
     extends: .base
     stage: lint
     before_script:
         - *install-deps
-    only:
-      changes:
-        - "/poetry.lock"
-        - "/pyproject.toml"
-        - "/app/*"
+
 ######################################
 #                                    #
 #             LINT STEPS             #
@@ -38,6 +46,18 @@ isort:
     script:
         - poetry run isort --check .
 
+######################################
+#                                    #
+#             TEST STEPS             #
+#                                    #
+######################################
+
+test:
+    extends: .test
+    coverage: '/TOTAL.*\s+(\d+\%)/'
+    script:
+        - poetry run pytest --cov -v
+
 ######################################
 #                                    #
 #            BUILD STEPS             #

Dockerfile

@@ -12,4 +12,4 @@ RUN curl -sSL https://install.python-poetry.org | python3 -
 ENV PATH=/root/.local/bin:$PATH
 RUN poetry install
 
-CMD ["poetry", "run", "python", "app/main.py"]
+CMD ["poetry", "run", "python", "-m" , "app.main"]

app/discord_client.py

@@ -2,7 +2,7 @@ import os
 
 import requests
 from loguru import logger
-from twitch_client import StreamInformation
+from app.twitch_client import StreamInformation
 
 
 class DiscordClient:

app/main.py

@@ -1,10 +1,10 @@
 import os
 import time
 
-from discord_client import DiscordClient
+from app.discord_client import DiscordClient
+from app.twitch_client import StreamInformation, TwitchClient
 from loguru import logger
 from requests import HTTPError
-from twitch_client import StreamInformation, TwitchClient
 
 
 class Main:

app/tests/conftest.py

@@ -0,0 +1,16 @@
+from collections import namedtuple
+from unittest import mock
+
+import pytest
+
+
+@pytest.fixture
+def mock_loggers():
+    with (
+        mock.patch("loguru.logger.info") as info_logger,
+        mock.patch("loguru.logger.error") as error_logger,
+    ):
+        mocked_loggers = namedtuple(
+            "mocked_loggers", ["info_logger", "error_logger"]
+        )
+        yield mocked_loggers(info_logger, error_logger)

app/tests/test_discord_client.py

@@ -0,0 +1,44 @@
+import os
+from unittest import mock
+
+import pytest
+import requests_mock
+from requests import HTTPError
+
+from app.discord_client import DiscordClient
+from app.twitch_client import StreamInformation
+
+
+def test_require_webhook_url():
+    with pytest.raises(KeyError):
+        DiscordClient()
+
+
+def test_send_information_to_discord_fails(mock_loggers):
+    stream = StreamInformation(
+        user_id="",
+        user_name="",
+        user_login="",
+        game_name="",
+        started_at="",
+        title="",
+        viewer_count=0,
+        _thumbnail_url=""
+    )
+
+    with (
+        mock.patch.dict(os.environ, {"DISCORD_WEBHOOK_URL": "https://test"}),
+        requests_mock.Mocker() as requests_mocker,
+    ):
+        requests_mocker.post(url="https://test", status_code=400)
+
+        discord_client = DiscordClient()
+        with pytest.raises(HTTPError):
+            discord_client.send_information_to_discord(
+                stream=stream, profile_image=""
+            )
+
+    assert len(mock_loggers.info_logger.call_args_list) == 1
+    assert mock_loggers.info_logger.call_args.args[0] == (
+        "Sending a message with an embed to the webhook..."
+    )

poetry.lock

@@ -1,3 +1,19 @@
+[[package]]
+name = "attrs"
+version = "22.2.0"
+description = "Classes Without Boilerplate"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+cov = ["attrs", "coverage-enable-subprocess", "coverage[toml] (>=5.3)"]
+dev = ["attrs"]
+docs = ["furo", "sphinx", "myst-parser", "zope.interface", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier"]
+tests = ["attrs", "zope.interface"]
+tests-no-zope = ["hypothesis", "pympler", "pytest (>=4.3.0)", "pytest-xdist", "cloudpickle", "mypy (>=0.971,<0.990)", "pytest-mypy-plugins"]
+tests_no_zope = ["hypothesis", "pympler", "pytest (>=4.3.0)", "pytest-xdist", "cloudpickle", "mypy (>=0.971,<0.990)", "pytest-mypy-plugins"]
+
 [[package]]
 name = "black"
 version = "23.1.0"
@@ -54,6 +70,17 @@ category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 
+[[package]]
+name = "coverage"
+version = "7.2.1"
+description = "Code coverage measurement for Python"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+toml = ["tomli"]
+
 [[package]]
 name = "idna"
 version = "3.4"
@@ -62,6 +89,14 @@ category = "main"
 optional = false
 python-versions = ">=3.5"
 
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
 [[package]]
 name = "isort"
 version = "5.12.0"
@@ -127,6 +162,73 @@ python-versions = ">=3.7"
 docs = ["furo (>=2022.12.7)", "proselint (>=0.13)", "sphinx-autodoc-typehints (>=1.22,!=1.23.4)", "sphinx (>=6.1.3)"]
 test = ["appdirs (==1.4.4)", "covdefaults (>=2.2.2)", "pytest-cov (>=4)", "pytest-mock (>=3.10)", "pytest (>=7.2.1)"]
 
+[[package]]
+name = "pluggy"
+version = "1.0.0"
+description = "plugin and hook calling mechanisms for python"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
+[[package]]
+name = "pytest"
+version = "7.2.2"
+description = "pytest: simple powerful testing with Python"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+attrs = ">=19.2.0"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=0.12,<2.0"
+
+[package.extras]
+testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
+
+[[package]]
+name = "pytest-cov"
+version = "4.0.0"
+description = "Pytest plugin for measuring coverage."
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+coverage = {version = ">=5.2.1", extras = ["toml"]}
+pytest = ">=4.6"
+
+[package.extras]
+testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
+
+[[package]]
+name = "pytest-cover"
+version = "3.0.0"
+description = "Pytest plugin for measuring coverage. Forked from `pytest-cov`."
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+pytest-cov = ">=2.0"
+
+[[package]]
+name = "pytest-coverage"
+version = "0.0"
+description = "Pytest plugin for measuring coverage. Forked from `pytest-cov`."
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+pytest-cover = "*"
+
 [[package]]
 name = "requests"
 version = "2.28.2"
@@ -145,6 +247,30 @@ urllib3 = ">=1.21.1,<1.27"
 socks = ["PySocks (>=1.5.6,!=1.5.7)"]
 use_chardet_on_py3 = ["chardet (>=3.0.2,<6)"]
 
+[[package]]
+name = "requests-mock"
+version = "1.10.0"
+description = "Mock out responses from the requests package"
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+requests = ">=2.3,<3"
+six = "*"
+
+[package.extras]
+fixture = ["fixtures"]
+test = ["fixtures", "mock", "purl", "pytest", "sphinx", "testrepository (>=0.0.18)", "testtools", "requests-futures"]
+
+[[package]]
+name = "six"
+version = "1.16.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
+
 [[package]]
 name = "urllib3"
 version = "1.26.14"
@@ -172,9 +298,10 @@ dev = ["pytest (>=4.6.2)", "black (>=19.3b0)"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.11"
-content-hash = "2cd384690a48bd802789a049147162c975c512098cc42b7716ba54b06f448092"
+content-hash = "c88f613c25a933f82f5abb7053b249fe6bc13d021c655f1da432fca43c5d2fba"
 
 [metadata.files]
+attrs = []
 black = []
 certifi = []
 charset-normalizer = []
@@ -183,13 +310,22 @@ click = [
     {file = "click-8.1.3.tar.gz", hash = "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e"},
 ]
 colorama = []
+coverage = []
 idna = []
+iniconfig = []
 isort = []
 loguru = []
 mypy-extensions = []
 packaging = []
 pathspec = []
 platformdirs = []
+pluggy = []
+pytest = []
+pytest-cov = []
+pytest-cover = []
+pytest-coverage = []
 requests = []
+requests-mock = []
+six = []
 urllib3 = []
 win32-setctime = []

pyproject.toml

@@ -10,6 +10,9 @@ requests = "^2.28.2"
 loguru = "^0.6.0"
 black = "^23.1.0"
 isort = "^5.12.0"
+pytest = "^7.2.2"
+requests-mock = "^1.10.0"
+pytest-coverage = "^0.0"
 
 [tool.poetry.dev-dependencies]