fix: four real defects the fourteen failing tests were pointing at

Closes netork#115.

The suite had been red long enough that it stopped being read. Four of the
fourteen failures were the tests being right.

`interfaces_mixin.py` used `re.match` without importing `re`, so
`get_mac_address_table` raised NameError against any node with a Linux bridge.
The tests never reached that line: they mocked the API call underneath
`_exec_ssh_command`, which takes two positional arguments where the doubles
accepted one, and which base64-wraps the command — so a fixture keyed on
"bridge fdb" appearing in the text matched nothing and the helper returned "".
They mock `_exec_ssh_command` itself now, which is the driver's own seam.

`is_alive` called `_resolve_node()`, which returns early without touching the
API whenever a node was configured through optional_args. A dead connection
reported itself alive. It probes `GET /version` now.

The documented `realm` optional_arg was read into `self._realm` in `__init__`
and then never used. Proxmox authenticates against "<user>@<realm>" and rejects
a bare username, so the option had no effect and callers had to know to type the
realm themselves.

`get_vlans` filtered out entries with no member ports on one return path while
the OVS path returned them, so a configured SDN VNet was visible or invisible
depending on which branch ran. A VNet exists on the node whether or not anything
is attached to it, and netOrk's VLAN discovery reads this.

`get_ipv6_neighbors_table` was simply missing and fell through to NAPALM's stub;
it is implemented against `ip -6 neigh show`, dropping FAILED entries.

The rest were stale tests. The DNS fixture put an FQDN where a search domain
belongs, which made `get_facts` build "pve1.pve1.example.com" and look like a
driver bug. The LLDP fixture was a simplified shape that real `lldpcli show
neighbors summary` does not produce — the parser matches on the ", via: LLDP"
that follows the interface name. And `test_bridge_vlan_show_parsing` covered a
fallback that was replaced by VM-config scanning, asserting an "interfaces" key
this method has never returned; it is now a test of the fallback that exists.

napalm_proxmox/driver.py

@@ -141,9 +141,18 @@ class ProxmoxDriver(
             # The openssh backend tunnels all kwargs through to
             # openssh_wrapper.CommandBaseSession, which does not
             # accept password/verify_ssl/token params.
+            # Proxmox authenticates against "<user>@<realm>" and rejects a bare
+            # username outright. A caller who typed a realm keeps it; one who
+            # did not gets self._realm, which is what the documented `realm`
+            # optional_arg is for -- it was read in __init__ and then never
+            # used, so the option had no effect and a bare username failed.
+            user = self.username or ""
+            if user and "@" not in user:
+                user = f"{user}@{self._realm}"
+
             kwargs: _JsonDict = {
                 "host": self.hostname,
-                "user": self.username,
+                "user": user,
                 "password": self.password,
                 "port": self._port,
                 "verify_ssl": self._verify_ssl,
@@ -210,11 +219,17 @@ class ProxmoxDriver(
             self._ssh_client = None
 
     def is_alive(self) -> _JsonDict:
-        """Return connection liveness."""
+        """Return connection liveness.
+
+        Probes ``GET /version``, the cheapest endpoint that proves the session
+        still authenticates. It used to call ``_resolve_node()``, which returns
+        early without touching the API whenever a node was configured via
+        optional_args — so a dead connection reported itself alive.
+        """
         alive = False
         if self._api:
             try:
-                self._resolve_node()
+                self._api.version.get()
                 alive = True
             except Exception:
                 pass

napalm_proxmox/interfaces_mixin.py

@@ -17,6 +17,7 @@
 from __future__ import annotations
 
 import logging
+import re
 from typing import Any
 
 from napalm_proxmox import utils
@@ -113,6 +114,47 @@ class ProxmoxInterfaceMixin:
             }
         return result
 
+    def get_ipv6_neighbors_table(self) -> list[_JsonDict]:
+        """Return the IPv6 neighbour table, read via ``ip -6 neigh show``.
+
+        The IPv6 counterpart to :meth:`get_arp_table`. Proxmox exposes no REST
+        endpoint for it, so it goes through the node exec helper like the ARP
+        table does.
+
+        Entries in FAILED state are dropped: they record an address the kernel
+        could not resolve, so there is no neighbour to report.
+        """
+        raw = self._exec_ssh_command("ip -6 neigh show 2>/dev/null || true")
+        if not raw:
+            return []
+
+        entries: list[_JsonDict] = []
+        for line in raw.splitlines():
+            parts = line.split()
+            # "<ip> dev <iface> lladdr <mac> <STATE>" — an entry without lladdr
+            # never resolved and carries no neighbour.
+            if len(parts) < 6 or "lladdr" not in parts:
+                continue
+            state = parts[-1].upper()
+            if state == "FAILED":
+                continue
+            try:
+                iface = parts[parts.index("dev") + 1]
+                mac = parts[parts.index("lladdr") + 1]
+            except (ValueError, IndexError):
+                continue
+            entries.append(
+                {
+                    "interface": iface,
+                    "mac": utils.normalize_mac(mac),
+                    "ip": parts[0],
+                    # `ip neigh` reports no age; NAPALM's shape requires the key.
+                    "age": 0.0,
+                    "state": state,
+                }
+            )
+        return entries
+
     def get_arp_table(self, vrf: str = "") -> list[_JsonDict]:
         """Return ARP table.
 

napalm_proxmox/sdn_mixin.py

@@ -61,7 +61,8 @@ class ProxmoxSDNMixin:
         OVSIntPort (access ports with ovs_tag) → untagged membership, and
         OVSPort / OVSBridge (trunk ports) → tagged membership.
 
-        Falls back to ``bridge vlan show`` for classic Linux-bridge nodes.
+        Without OVS ports, VLAN membership is derived from the ``tag=`` values
+        in each VM's and container's ``netN`` config (:meth:`_get_vm_vlan_tags`).
         """
         result: dict[str, _JsonDict] = {}
         node_network = self._get_node_network()
@@ -113,10 +114,12 @@ class ProxmoxSDNMixin:
                 if bridge not in entry["untagged"]:
                     entry["untagged"].append(bridge)
 
-        return {
+        # Deliberately unfiltered. This used to drop entries with no member
-            vid: entry for vid, entry in result.items()
+        # ports, which hid every configured SDN VNet that no VM happened to be
-            if entry.get("tagged") or entry.get("untagged")
+        # attached to — and contradicted the OVS branch above, which returns
-        }
+        # empty-membership VLANs. A VNet exists on the node whether or not
+        # anything currently uses it, and netOrk's VLAN discovery reads this.
+        return result
 
     def _get_vm_vlan_tags(self) -> dict[str, set[str]]:
         """Return ``{vlan_tag: {bridge_names}}`` derived from VM/container net configs.

tests/conftest.py

@@ -91,7 +91,10 @@ SDN_SUBNETS_VNET1 = [
 
 SDN_SUBNETS_VNET2: list = []
 
-DNS_INFO = {"search": "pve1.example.com", "dns1": "8.8.8.8"}
+# A DNS *search domain*, not an FQDN. It used to read "pve1.example.com",
+# which made get_facts build "pve1.pve1.example.com" and looked like a
+# driver bug rather than bad test data.
+DNS_INFO = {"search": "example.com", "dns1": "8.8.8.8"}
 
 NTP_INFO = {"server": "pool.ntp.org,time.cloudflare.com"}
 

tests/test_connection.py

@@ -34,7 +34,10 @@ class TestOpen:
         with patch("napalm_proxmox.driver.ProxmoxAPI", return_value=mock_api) as mock_cls:
             drv.open()
         call_kwargs = mock_cls.call_args.kwargs
-        assert call_kwargs["user"] == "napalm@pam!mytoken"
+        # proxmoxer wants the two halves separately, not the combined
+        # "<user>!<tokenid>" string that Proxmox's UI displays.
+        assert call_kwargs["user"] == "napalm@pam"
+        assert call_kwargs["token_name"] == "mytoken"
         assert call_kwargs["token_value"] == "super-secret"
 
     def test_open_connection_error(self):

tests/test_misc.py

@@ -263,17 +263,28 @@ class TestGetRouteTo:
 
 
 class TestLLDPNeighbors:
+    # Real `lldpcli show neighbors summary` output. The interface line carries
+    # ", via: LLDP, ..." after the name, which is what the parser matches on —
+    # the previous fixture stopped at the name and matched nothing.
     LLDP_SUMMARY = (
-        "  Interface: eth0\n"
+        "LLDP neighbors:\n"
+        "-------------------------------------------------------------------------------\n"
+        "Interface:    eth0, via: LLDP, RID: 1, Time: 0 day, 00:11:22\n"
+        "  Chassis:\n"
         "    SysName:      sw01.example.com\n"
+        "  Port:\n"
         "    PortID:       ifname GigabitEthernet1/0/1\n"
-        "  Interface: eth1\n"
+        "-------------------------------------------------------------------------------\n"
+        "Interface:    eth1, via: LLDP, RID: 2, Time: 0 day, 00:11:22\n"
+        "  Chassis:\n"
         "    SysName:      sw02.example.com\n"
+        "  Port:\n"
         "    PortID:       ifname GigabitEthernet1/0/2\n"
+        "-------------------------------------------------------------------------------\n"
     )
 
     def test_neighbors_found(self, driver):
-        driver._node_api().execute.post.return_value = {"data": self.LLDP_SUMMARY}
+        with patch.object(driver, "_exec_ssh_command", return_value=self.LLDP_SUMMARY):
             result = driver.get_lldp_neighbors()
         assert "eth0" in result
         assert result["eth0"][0]["hostname"] == "sw01.example.com"

tests/test_ovs_and_arp.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import pytest
+from unittest.mock import patch
 
 from napalm_proxmox import utils
 
@@ -126,6 +127,11 @@ class TestGetARPTable:
 
 
 class TestGetMACAddressTable:
+    # Mocked at _exec_ssh_command, the driver's own seam. Mocking the API call
+    # underneath it broke twice over: that helper passes two positional
+    # arguments where these doubles accepted one, and it base64-wraps the
+    # command, so a fixture keyed on "bridge fdb" appearing in the text never
+    # matched.
     BRIDGE_FDB = (
         "aa:bb:cc:dd:ee:01 dev eth0 vlan 10 master vmbr0 permanent\n"
         "cc:dd:ee:ff:00:11 dev eth0 vlan 20 master vmbr0\n"
@@ -142,9 +148,7 @@ class TestGetMACAddressTable:
                 return self.BRIDGE_FDB
             return ""
 
-        driver._node_api().execute.post.side_effect = lambda command: {
+        with patch.object(driver, "_exec_ssh_command", side_effect=_exec):
-            "data": _exec(command)
-        }
             result = driver.get_mac_address_table()
         macs = {e["mac"] for e in result}
         assert "aa:bb:cc:dd:ee:01" in macs
@@ -155,9 +159,7 @@ class TestGetMACAddressTable:
                 return self.BRIDGE_FDB
             return ""
 
-        driver._node_api().execute.post.side_effect = lambda command: {
+        with patch.object(driver, "_exec_ssh_command", side_effect=_exec):
-            "data": _exec(command)
-        }
             result = driver.get_mac_address_table()
         static_entries = [e for e in result if e["mac"] == "aa:bb:cc:dd:ee:01"]
         assert static_entries[0]["static"] is True

tests/test_sdn.py

@@ -22,19 +22,33 @@ class TestGetVlans:
         result = driver.get_vlans()
         assert "100000" in result
 
-    def test_bridge_vlan_show_parsing(self, driver):
+    def test_membership_derived_from_vm_configs(self, driver):
-        # Simulate bridge vlan output
+        """Without OVS ports, VLAN membership comes from each VM's netN config.
-        bridge_output = (
+
-            "vmbr0   1\n"
+        This replaces a test for a `bridge vlan show` fallback that no longer
-            "        10\n"
+        exists — it also asserted an "interfaces" key this method has never
-            "        20\n"
+        produced, so it could not have passed against any version of the code.
-            "eth0    1\n"
+        """
-        )
+        node = driver._node_api()
-        driver._node_api().execute.post.return_value = {"data": bridge_output}
+        node.qemu.get.return_value = [{"vmid": 100}]
+        node.lxc.get.return_value = []
+        node.qemu.return_value.config.get.return_value = {
+            "net0": "virtio=AA:BB:CC:DD:EE:FF,bridge=vmbr0,tag=10",
+        }
+
         result = driver.get_vlans()
-        # Interface vmbr0 should appear in vlan 1
+        assert "vmbr0" in result["10"]["untagged"]
-        entry = result.get("1", {})
+
-        assert "vmbr0" in entry.get("interfaces", [])
+    def test_configured_vnets_appear_even_without_members(self, driver):
+        """An SDN VNet exists on the node whether or not anything is attached.
+
+        Entries with no member ports used to be filtered out of this one return
+        path while the OVS path returned them, so a configured VLAN was visible
+        or invisible depending on which branch ran.
+        """
+        result = driver.get_vlans()
+        assert result["20"]["name"] == "vnet1"
+        assert result["20"]["untagged"] == []
 
     def test_empty_sdn_returns_dict(self):
         from unittest.mock import patch