chore: update for test

- update postgres_db name for test in DEVELOPMENT.md
- update postgres_port for test in utils.py
- add psycopg[binary] for test using binary psycopg

Author: JHSeo-git

DEVELOPMENT.md

@@ -21,7 +21,7 @@ Start PostgreSQL/PGVector.
 docker run --rm -it --name pgvector-container \
   -e POSTGRES_USER=langchain \
   -e POSTGRES_PASSWORD=langchain \
-  -e POSTGRES_DB=langchain \
+  -e POSTGRES_DB=langchain_test \
   -p 6024:5432 pgvector/pgvector:pg16 \
   postgres -c log_statement=all
 ```

pyproject.toml

@@ -25,6 +25,7 @@ test = [
     "codespell>=2.4.1",
     "langchain-tests==0.3.7",
     "mypy>=1.15.0",
+    "psycopg[binary]>=3,<4",
     "pytest>=8.3.4",
     "pytest-asyncio>=0.25.3",
     "pytest-cov>=6.0.0",

tests/utils.py

@@ -18,7 +18,7 @@
 POSTGRES_PASSWORD = os.environ.get("POSTGRES_PASSWORD", "langchain")
 POSTGRES_DB = os.environ.get("POSTGRES_DB", "langchain_test")
 
-POSTGRES_PORT = os.environ.get("POSTGRES_PORT", "5432")
+POSTGRES_PORT = os.environ.get("POSTGRES_PORT", "6024")
 
 DSN = (
     f"postgresql://{POSTGRES_USER}:{POSTGRES_PASSWORD}@{POSTGRES_HOST}"