add pytest-xdist and tests in CI

.github/workflows/ci.yml

@@ -4,6 +4,7 @@ on: [push, pull_request]
 
 jobs:
   lint:
+    name: Run Linter
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -19,3 +20,43 @@ jobs:
           pip install -r lint-requirements.txt
       - name: Run Ruff
         run: ruff check --output-format=github .
+  test:
+    name: Run Tests
+    needs: lint
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:15-alpine
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: postgres
+        ports: ["5432:5432"]
+      redis:
+        image: redis:7.0.12-alpine
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 6379:6379
+    steps:
+      - uses: actions/checkout@v4
+      - run: pipx install poetry
+      - name: Install Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: 3.11
+      - run: |
+          poetry env use "3.11"
+          poetry install
+          poetry run pytest -x -n auto --dist loadfile
+        env:
+          DB_HOST: "localhost"
+          REDIS_HOST: "localhost"
+          REDIS_PORT: "6379"

.pre-commit-config.yaml

@@ -1,18 +1,4 @@
 repos:
-  - repo: https://github.com/pycqa/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-  - repo: https://github.com/psf/black
-    rev: 23.7.0
-    hooks:
-      - id: black
-  - repo: https://github.com/pycqa/flake8
-    rev: 6.0.0
-    hooks:
-      - id: flake8
-        exclude: "src/tests/"
-        additional_dependencies: [Flake8-pyproject]
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
     rev: v0.3.0

Dockerfile

@@ -21,7 +21,7 @@ WORKDIR /opt/chat
 
 COPY poetry.lock pyproject.toml ./
 RUN pip install "poetry==$POETRY_VERSION"
-RUN poetry export --with dev --output requirements.txt
+RUN poetry export --with test,lint --output requirements.txt
 RUN pip install --no-deps -r requirements.txt
 
 COPY . .

Makefile

@@ -22,6 +22,9 @@ down:
 test:
 	docker exec -it chat-backend python -m pytest -svv $(target)
 
+ftest:
+	docker exec -it chat-backend python -m pytest -x -n 2 --dist loadfile
+
 test-integration:
 	docker exec -it chat-backend python -m pytest -m "integration" -svv
 

pyproject.toml

@@ -38,6 +38,7 @@ pytest = "7.4.3"
 pytest-asyncio = "0.23.5"
 pytest-env = "1.1.3"
 pytest-mock = "3.12.0"
+pytest-xdist = "3.5.0"
 
 [tool.poetry.group.lint.dependencies]
 ruff = "0.3.0"

src/config.py

@@ -1,5 +1,6 @@
 import logging
 import os
+from random import randint
 
 import boto3
 from pydantic_settings import BaseSettings, SettingsConfigDict
@@ -58,7 +59,7 @@ class GlobalSettings(BaseSettings):
 
 
 class TestSettings(GlobalSettings):
-    DB_SCHEMA: str = "test"
+    DB_SCHEMA: str = f"test_{randint(1, 100)}"
 
 
 class DevelopmentSettings(GlobalSettings):
@@ -125,6 +126,10 @@ def get_settings():
     },
     "loggers": {
         "": {"handlers": ["default"], "level": settings.LOG_LEVEL, "propagate": False},
-        "uvicorn": {"handlers": ["default"], "level": logging.ERROR, "propagate": False},
+        "uvicorn": {
+            "handlers": ["default"],
+            "level": logging.ERROR,
+            "propagate": False,
+        },
     },
 }

tests/conftest.py

@@ -36,7 +36,7 @@ async def override_get_async_session() -> AsyncGenerator[AsyncSession, None]:
 app.dependency_overrides[get_async_session] = override_get_async_session
 
 
-@pytest.fixture(scope="session")
+@pytest.fixture
 async def db_session():
     async with autocommit_engine.begin() as conn:
         await conn.execute(text(f"CREATE SCHEMA IF NOT EXISTS {settings.DB_SCHEMA}"))
@@ -60,7 +60,7 @@ async def clear_tables(db_session: AsyncSession):
 client = TestClient(app)
 
 
-@pytest.fixture(scope="session", autouse=True)
+@pytest.fixture(scope="session")
 def event_loop(request):
     """Create an instance of the default event loop for each test case."""
     loop = asyncio.get_event_loop_policy().new_event_loop()
@@ -199,12 +199,16 @@ async def bob_emily_chat_messages_history(
 
 @pytest.fixture
 async def bob_read_status(
-    db_session: AsyncSession, bob_user: User, bob_emily_chat_messages_history: list[Message]
+    db_session: AsyncSession,
+    bob_user: User,
+    bob_emily_chat_messages_history: list[Message],
 ) -> ReadStatus:
     # bob read 10 messages
     last_read_message = bob_emily_chat_messages_history[9]
     read_status = ReadStatus(
-        user_id=bob_user.id, chat_id=last_read_message.chat.id, last_read_message_id=last_read_message.id
+        user_id=bob_user.id,
+        chat_id=last_read_message.chat.id,
+        last_read_message_id=last_read_message.id,
     )
     db_session.add(read_status)
     await db_session.commit()
@@ -214,12 +218,16 @@ async def bob_read_status(
 
 @pytest.fixture
 async def emily_read_status(
-    db_session: AsyncSession, emily_user: User, bob_emily_chat_messages_history: list[Message]
+    db_session: AsyncSession,
+    emily_user: User,
+    bob_emily_chat_messages_history: list[Message],
 ) -> ReadStatus:
     # emily read 15 messages
     last_read_message = bob_emily_chat_messages_history[14]
     read_status = ReadStatus(
-        user_id=emily_user.id, chat_id=last_read_message.chat.id, last_read_message_id=last_read_message.id
+        user_id=emily_user.id,
+        chat_id=last_read_message.chat.id,
+        last_read_message_id=last_read_message.id,
     )
     db_session.add(read_status)
     await db_session.commit()