added test

tests/test_client.py

@@ -108,4 +108,19 @@ async def test_multiple_read_and_write_value(server, client):
     with pytest.raises(ua.uaerrors.BadUserAccessDenied):
         await client.write_values([v1, v2, v_ro], [4, 5, 6])
 
-
+async def test_browse_nodes(server, client):
+    nodes = [
+        client.get_node("ns=0;i=2267"),
+        client.get_node("ns=0;i=2259"),
+    ]
+    results = await client.browse_nodes(nodes)
+    assert len(results) == 2
+    assert isinstance(results, list)
+    assert results[0][0] == nodes[0]
+    assert results[1][0] == nodes[1]
+    assert isinstance(results[0][0], Node)
+    assert isinstance(results[1][0], Node)
+    assert isinstance(results[0][1], ua.BrowseResult)
+    assert isinstance(results[1][1], ua.BrowseResult)
+    
+