feat(config): add support for separate test database via .env.test

Author: EmiFunes91

.env

@@ -10,7 +10,7 @@ FRONTEND_HOST=http://localhost:5173
 # In staging and production, set this env var to the frontend host, e.g.
 # FRONTEND_HOST=https://dashboard.example.com
 
-# Environment: local, staging, production
+# Environment: local, staging, production, test
 ENVIRONMENT=local
 
 PROJECT_NAME="Full Stack FastAPI Project"

.env.test

@@ -0,0 +1,9 @@
+# Environment used during automated testing
+ENVIRONMENT=test
+
+# Postgres (isolated database for testing)
+POSTGRES_SERVER=localhost
+POSTGRES_PORT=5432
+POSTGRES_DB=app_test
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=changethis

README.md

@@ -140,6 +140,25 @@ You can (and should) pass these as environment variables from secrets.
 
 Read the [deployment.md](./deployment.md) docs for more details.
 
+### Testing Environment
+
+This project supports running in a test environment using a separate `.env.test` file.  
+It allows isolating the testing database from the development one to prevent data collisions.
+
+The test configuration sets:
+
+- `ENVIRONMENT=test`
+- `POSTGRES_DB=app_test`
+
+The application automatically detects this environment and uses a separate database configuration.  
+You can run tests with:
+
+```bash
+ENVIRONMENT=test pytest
+```
+You can also create a dedicated PostgreSQL service or volume for testing if needed.
+See config.py for the environment-specific logic.
+
 ### Generate Secret Keys
 
 Some environment variables in the `.env` file have a default value of `changethis`.

backend/app/core/config.py

@@ -33,10 +33,9 @@ class Settings(BaseSettings):
     )
     API_V1_STR: str = "/api/v1"
     SECRET_KEY: str = secrets.token_urlsafe(32)
-    # 60 minutes * 24 hours * 8 days = 8 days
     ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8
     FRONTEND_HOST: str = "http://localhost:5173"
-    ENVIRONMENT: Literal["local", "staging", "production"] = "local"
+    ENVIRONMENT: Literal["local", "staging", "production", "test"] = "local"
 
     BACKEND_CORS_ORIGINS: Annotated[
         list[AnyUrl] | str, BeforeValidator(parse_cors)
@@ -60,13 +59,17 @@ def all_cors_origins(self) -> list[str]:
     @computed_field  # type: ignore[prop-decorator]
     @property
     def SQLALCHEMY_DATABASE_URI(self) -> PostgresDsn:
+        db_name = self.POSTGRES_DB
+        # Si el entorno es de test, usamos una base separada
+        if self.ENVIRONMENT == "test":
+            db_name = f"{self.POSTGRES_DB}_test"
         return MultiHostUrl.build(
             scheme="postgresql+psycopg",
             username=self.POSTGRES_USER,
             password=self.POSTGRES_PASSWORD,
             host=self.POSTGRES_SERVER,
             port=self.POSTGRES_PORT,
-            path=self.POSTGRES_DB,
+            path=db_name,
         )
 
     SMTP_TLS: bool = True
@@ -113,7 +116,6 @@ def _enforce_non_default_secrets(self) -> Self:
         self._check_default_secret(
             "FIRST_SUPERUSER_PASSWORD", self.FIRST_SUPERUSER_PASSWORD
         )
-
         return self