Started implementing chain to create pool

Signed-off-by: chandr-andr (Kiselev Aleksandr) <chandr@chandr.net>

Author: chandr-andr

python/tests/test_connection_pool_builder.py

@@ -0,0 +1,57 @@
+import pytest
+
+from psqlpy import (
+    ConnectionPoolBuilder,
+    ConnRecyclingMethod,
+    LoadBalanceHosts,
+    SslMode,
+    TargetSessionAttrs,
+)
+
+pytestmark = pytest.mark.anyio
+
+
+async def test_connection_pool_builder(
+    postgres_host: str,
+    postgres_user: str,
+    postgres_password: str,
+    postgres_port: int,
+    postgres_dbname: str,
+    table_name: str,
+) -> None:
+    """Test connection pool builder functionality."""
+    builder = (
+        ConnectionPoolBuilder()
+        .max_pool_size(10)
+        .host(postgres_host)
+        .port(postgres_port)
+        .user(postgres_user)
+        .password(postgres_password)
+        .dbname(postgres_dbname)
+        .conn_recycling_method(
+            ConnRecyclingMethod.Verified,
+        )
+        .options("")
+        .application_name("testing")
+        .ssl_mode(SslMode.Disable)
+        .connect_timeout(10)
+        .tcp_user_timeout(100)
+        .target_session_attrs(
+            TargetSessionAttrs.ReadWrite,
+        )
+        .load_balance_hosts(
+            LoadBalanceHosts.Disable,
+        )
+        .keepalives(True)
+        .keepalives_idle(10)
+        .keepalives_interval(10)
+        .keepalives_retries(10)
+    )
+
+    pool = builder.build()
+
+    results = await pool.execute(
+        querystring=f"SELECT * FROM {table_name}",
+    )
+
+    assert results.result()