new: test_multiple_graph_sessions

tests/conftest.py

@@ -1,8 +1,6 @@
 import logging
 import os
-import sys
-from io import StringIO
-from typing import Any
+from typing import Any, Dict
 
 import networkx as nx
 import pytest
@@ -15,6 +13,8 @@
 
 logger.setLevel(logging.INFO)
 
+con: Dict[str, Any]
+client: ArangoClient
 db: StandardDatabase
 run_gpu_tests: bool
 
@@ -30,6 +30,7 @@ def pytest_addoption(parser: Any) -> None:
 
 
 def pytest_configure(config: Any) -> None:
+    global con
     con = {
         "url": config.getoption("url"),
         "username": config.getoption("username"),
@@ -43,10 +44,11 @@ def pytest_configure(config: Any) -> None:
     print("Password: " + con["password"])
     print("Database: " + con["dbName"])
 
+    global client
+    client = ArangoClient(hosts=con["url"])
+
     global db
-    db = ArangoClient(hosts=con["url"]).db(
-        con["dbName"], con["username"], con["password"], verify=True
-    )
+    db = client.db(con["dbName"], con["username"], con["password"], verify=True)
 
     print("Version: " + db.version())
     print("----------------------------------------")
@@ -99,6 +101,12 @@ def load_two_relation_graph() -> None:
     )
 
 
+def get_db(db_name: str) -> StandardDatabase:
+    global con
+    global client
+    return client.db(db_name, con["username"], con["password"], verify=True)
+
+
 def create_line_graph(load_attributes: set[str]) -> nxadb.Graph:
     G = nx.Graph()
     G.add_edge(1, 2, my_custom_weight=1)

tests/test.py

@@ -16,7 +16,7 @@
 from nx_arangodb.classes.dict.graph import GRAPH_FIELD
 from nx_arangodb.classes.dict.node import NodeAttrDict, NodeDict
 
-from .conftest import create_grid_graph, create_line_graph, db, run_gpu_tests
+from .conftest import create_grid_graph, create_line_graph, db, get_db, run_gpu_tests
 
 G_NX: nx.Graph = nx.karate_club_graph()
 G_NX_digraph = nx.DiGraph(G_NX)
@@ -88,6 +88,39 @@ def test_adb_graph_init(graph_cls: type[nxadb.Graph]) -> None:
         G.name = "RenamedTestGraph"
 
 
+def test_multiple_graph_sessions():
+    db_1_name = "test_db_1"
+    db_2_name = "test_db_2"
+
+    db.delete_database(db_1_name, ignore_missing=True)
+    db.delete_database(db_2_name, ignore_missing=True)
+
+    db.create_database(db_1_name)
+    db.create_database(db_2_name)
+
+    db_1 = get_db(db_1_name)
+    db_2 = get_db(db_2_name)
+
+    G_1 = nxadb.Graph(name="TestGraph", db=db_1)
+    G_2 = nxadb.Graph(name="TestGraph", db=db_2)
+
+    G_1.add_node(1, foo="bar")
+    G_1.add_node(2)
+    G_1.add_edge(1, 2)
+
+    G_2.add_node(1)
+    G_2.add_node(2)
+    G_2.add_node(3)
+    G_2.add_edge(1, 2)
+    G_2.add_edge(2, 3)
+
+    res_1 = nx.pagerank(G_1)
+    res_2 = nx.pagerank(G_2)
+
+    assert len(res_1) == 2
+    assert len(res_2) == 3
+
+
 def test_load_graph_from_nxadb():
     graph_name = "KarateGraph"