add test config and basic tests for csv_parser

tests/conftest.py

@@ -0,0 +1,60 @@
+import asyncio
+from typing import AsyncGenerator
+import pytest
+from httpx import ASGITransport, AsyncClient
+from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
+from app.core.config import settings
+from app.core.dependencies import get_db
+from app.main import app
+# Use a test database suffix or a separate database for testing
+TEST_DATABASE_URL = settings.DATABASE_URL.replace(settings.POSTGRES_DB, f"test_{settings.POSTGRES_DB}")
+# Create async engine for test db
+test_engine = create_async_engine(
+    TEST_DATABASE_URL,
+    echo=False,
+    future=True,
+)
+
+TestAsyncSessionLocal = async_sessionmaker(
+    bind=test_engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+)
+
+# Global flag to track if test DB is accessible
+_db_offline = False
+
+
+@pytest.fixture(scope="session", autouse=True)
+def initialize_test_db():
+    """Create test tables and clean them up after all tests finish."""
+    global _db_offline
+    import asyncio
+    try:
+        loop = asyncio.get_event_loop_policy().get_event_loop()
+    except RuntimeError:
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+
+    async def setup_db():
+        async with test_engine.begin() as conn:
+            await conn.run_sync(Base.metadata.drop_all)
+            await conn.run_sync(Base.metadata.create_all)
+
+    async def teardown_db():
+        async with test_engine.begin() as conn:
+            await conn.run_sync(Base.metadata.drop_all)
+
+    try:
+        loop.run_until_complete(setup_db())
+    except Exception as e:
+        _db_offline = True
+        print(f"\nSkipping DB initialization (Postgres is likely offline): {e}\n")
+
+    yield
+
+    if not _db_offline:
+        try:
+            loop.run_until_complete(teardown_db())
+        except Exception:
+            pass