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gns3-server/tests/controller/test_link.py
2021-04-17 23:34:28 +09:30

382 lines
12 KiB
Python

#!/usr/bin/env python
#
# Copyright (C) 2020 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import pytest
from unittest.mock import MagicMock
from gns3server.controller.link import Link
from gns3server.controller.node import Node
from gns3server.controller.ports.ethernet_port import EthernetPort
from gns3server.controller.ports.serial_port import SerialPort
from gns3server.controller.controller_error import ControllerError
from tests.utils import AsyncioBytesIO, AsyncioMagicMock
@pytest.fixture
@pytest.mark.asyncio
async def link(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 1, 3)]
link = Link(project)
link.create = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
await link.add_node(node2, 1, 3)
return link
def test_eq(project, link):
assert link == Link(project, link_id=link.id)
assert link != "a"
assert link != Link(project)
@pytest.mark.asyncio
async def test_add_node(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
project.dump = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
assert link._nodes == [
{
"node": node1,
"port": node1._ports[0],
"adapter_number": 0,
"port_number": 4,
'label': {
'text': '0/4',
'style': 'font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;'
}
}
]
assert project.dump.called
assert not link._project.emit_notification.called
assert not link.create.called
# We call link.created only when both side are created
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
await link.add_node(node2, 0, 4)
assert link.create.called
link._project.emit_notification.assert_called_with("link.created", link.asdict())
assert link in node2.links
@pytest.mark.asyncio
async def test_add_node_already_connected(project, compute):
"""
Raise an error if we try to use an already connected port
"""
project.dump = AsyncioMagicMock()
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
await link.add_node(node1, 0, 4)
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
await link.add_node(node2, 0, 4)
assert link.create.called
link2 = Link(project)
link2.create = AsyncioMagicMock()
with pytest.raises(ControllerError):
await link2.add_node(node1, 0, 4)
@pytest.mark.asyncio
async def test_add_node_cloud(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="cloud")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
await link.add_node(node1, 0, 4)
await link.add_node(node2, 0, 4)
@pytest.mark.asyncio
async def test_add_node_cloud_to_cloud(project, compute):
"""
Cloud to cloud connection is not allowed
"""
node1 = Node(project, compute, "node1", node_type="cloud")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="cloud")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
await link.add_node(node1, 0, 4)
with pytest.raises(ControllerError):
await link.add_node(node2, 0, 4)
@pytest.mark.asyncio
async def test_add_node_same_node(project, compute):
"""
Connection to the same node is not allowed
"""
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4), EthernetPort("E1", 0, 0, 5)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
await link.add_node(node1, 0, 4)
with pytest.raises(ControllerError):
await link.add_node(node1, 0, 5)
@pytest.mark.asyncio
async def test_add_node_serial_to_ethernet(project, compute):
"""
Serial to ethernet connection is not allowed
"""
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [SerialPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
await link.add_node(node1, 0, 4)
with pytest.raises(ControllerError):
await link.add_node(node2, 0, 4)
@pytest.mark.asyncio
async def test_json(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 1, 3)]
link = Link(project)
link.create = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
await link.add_node(node2, 1, 3)
assert link.asdict() == {
"link_id": link.id,
"project_id": project.id,
"nodes": [
{
"node_id": node1.id,
"adapter_number": 0,
"port_number": 4,
'label': {
'text': '0/4',
'style': 'font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;'
}
},
{
"node_id": node2.id,
"adapter_number": 1,
"port_number": 3,
'label': {
'text': '1/3',
'style': 'font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;'
}
}
],
"filters": {},
"suspend": False,
"link_type": "ethernet",
"capturing": False,
"capture_file_name": None,
"capture_file_path": None,
"capture_compute_id": None
}
assert link.asdict(topology_dump=True) == {
"link_id": link.id,
"nodes": [
{
"node_id": node1.id,
"adapter_number": 0,
"port_number": 4,
'label': {
'text': '0/4',
'style': 'font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;'
}
},
{
"node_id": node2.id,
"adapter_number": 1,
"port_number": 3,
'label': {
'text': '1/3',
'style': 'font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;'
}
}
],
"filters": {},
"suspend": False
}
@pytest.mark.asyncio
async def test_json_serial_link(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [SerialPort("S0", 0, 0, 4)]
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [SerialPort("S0", 0, 1, 3)]
link = Link(project)
link.create = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
await link.add_node(node2, 1, 3)
assert link.asdict()["link_type"] == "serial"
@pytest.mark.asyncio
async def test_default_capture_file_name(project, compute):
node1 = Node(project, compute, "Hello@", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute, "w0.rld", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 1, 3)]
link = Link(project)
link.create = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
await link.add_node(node2, 1, 3)
assert link.default_capture_file_name() == "Hello_0-4_to_w0rld_1-3.pcap"
@pytest.mark.asyncio
async def test_start_capture(link):
async def fake_reader():
return AsyncioBytesIO()
link.read_pcap_from_source = fake_reader
link._project.emit_notification = MagicMock()
await link.start_capture(capture_file_name="test.pcap")
assert link._capturing
assert link._capture_file_name == "test.pcap"
link._project.emit_notification.assert_called_with("link.updated", link.asdict())
@pytest.mark.asyncio
async def test_stop_capture(link):
link._capturing = True
link._project.emit_notification = MagicMock()
await link.stop_capture()
assert link._capturing is False
link._project.emit_notification.assert_called_with("link.updated", link.asdict())
@pytest.mark.asyncio
async def test_delete(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
project.dump = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
await link.add_node(node2, 0, 4)
assert link in node2.links
await link.delete()
assert link not in node2.links
@pytest.mark.asyncio
async def test_update_filters(project, compute):
node1 = Node(project, compute, "node1", node_type="qemu")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
link._project.emit_notification = MagicMock()
project.dump = AsyncioMagicMock()
await link.add_node(node1, 0, 4)
node2 = Node(project, compute, "node2", node_type="qemu")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
await link.add_node(node2, 0, 4)
link.update = AsyncioMagicMock()
assert link._created
await link.update_filters({
"packet_loss": [10],
"delay": [50, 10],
"frequency_drop": [0],
"bpf": [" \n "]
})
assert link.filters == {
"packet_loss": [10],
"delay": [50, 10]
}
assert link.update.called
@pytest.mark.asyncio
async def test_available_filters(project, compute):
node1 = Node(project, compute, "node1", node_type="ethernet_switch")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
link = Link(project)
link.create = AsyncioMagicMock()
assert link.available_filters() == []
# Ethernet switch is not supported should return 0 filters
await link.add_node(node1, 0, 4)
assert link.available_filters() == []
node2 = Node(project, compute, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 0, 4)]
await link.add_node(node2, 0, 4)
assert len(link.available_filters()) > 0