chore: import upstream snapshot with attribution

tests/tools/test_postgresql_current_queries_tool.py

@@ -0,0 +1,96 @@
+"""Tests for PostgreSQLCurrentQueriesTool (function-based, @tool decorated)."""
+
+from __future__ import annotations
+
+from unittest.mock import patch
+
+from integrations.postgresql.tools.postgresql_current_queries_tool import (
+    get_postgresql_current_queries,
+)
+from tests.tools.conftest import BaseToolContract
+
+
+class TestPostgreSQLCurrentQueriesToolContract(BaseToolContract):
+    def get_tool_under_test(self):
+        return get_postgresql_current_queries.__opensre_registered_tool__
+
+
+def test_metadata() -> None:
+    rt = get_postgresql_current_queries.__opensre_registered_tool__
+    assert rt.name == "get_postgresql_current_queries"
+    assert rt.source == "postgresql"
+
+
+def test_run_happy_path() -> None:
+    fake_result = {
+        "source": "postgresql",
+        "available": True,
+        "threshold_seconds": 2,
+        "total_queries": 3,
+        "queries": [
+            {
+                "pid": 12345,
+                "username": "app_user",
+                "application_name": "myapp",
+                "client_addr": "192.168.1.100",
+                "state": "active",
+                "query_start": "2024-01-15 10:30:00",
+                "duration_seconds": 15,
+                "wait_event_type": "",
+                "wait_event": "",
+                "query_truncated": "SELECT * FROM large_table WHERE id IN (SELECT...",
+            },
+            {
+                "pid": 12346,
+                "username": "analytics",
+                "application_name": "report_generator",
+                "client_addr": "local",
+                "state": "active",
+                "query_start": "2024-01-15 10:29:45",
+                "duration_seconds": 30,
+                "wait_event_type": "IO",
+                "wait_event": "DataFileRead",
+                "query_truncated": "SELECT COUNT(*) FROM events WHERE created_at...",
+            },
+        ],
+    }
+    with patch(
+        "integrations.postgresql.tools.postgresql_current_queries_tool.get_current_queries",
+        return_value=fake_result,
+    ):
+        result = get_postgresql_current_queries(
+            host="localhost", database="testdb", threshold_seconds=2
+        )
+    assert result["threshold_seconds"] == 2
+    assert result["total_queries"] == 3
+    assert len(result["queries"]) == 2
+    assert result["queries"][0]["duration_seconds"] == 15
+
+
+def test_run_error_propagated() -> None:
+    with patch(
+        "integrations.postgresql.tools.postgresql_current_queries_tool.get_current_queries",
+        return_value={"source": "postgresql", "available": False, "error": "permission denied"},
+    ):
+        result = get_postgresql_current_queries(host="invalid", database="testdb")
+    assert "error" in result
+    assert result["available"] is False
+
+
+def test_default_db_warning_present_when_database_omitted() -> None:
+    with patch(
+        "integrations.postgresql.tools.postgresql_current_queries_tool.get_current_queries",
+        return_value={"source": "postgresql", "available": True, "queries": []},
+    ):
+        result = get_postgresql_current_queries(host="localhost")
+    assert "default_db_warning" in result
+    assert "postgres" in result["default_db_warning"]
+
+
+def test_no_default_db_warning_when_database_provided() -> None:
+    with patch(
+        "integrations.postgresql.tools.postgresql_current_queries_tool.get_current_queries",
+        return_value={"source": "postgresql", "available": True, "queries": []},
+    ):
+        result = get_postgresql_current_queries(host="localhost", database="mydb")
+    assert "default_db_warning" not in result