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gns3-server/tests/compute/iou/test_iou_vm.py
grossmj d3ea67da24 Refactor tests
* Use pytest-aiohttp
* Use the async def / await syntax.
* Fix tests to run with Python 3.8
2020-06-16 13:59:03 +09:30

453 lines
15 KiB
Python

# -*- coding: utf-8 -*-
#
# 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
import asyncio
import os
import stat
import socket
import sys
import uuid
import shutil
from tests.utils import asyncio_patch, AsyncioMagicMock
from unittest.mock import patch, MagicMock
pytestmark = pytest.mark.skipif(sys.platform.startswith("win"), reason="Not supported on Windows")
if not sys.platform.startswith("win"):
from gns3server.compute.iou.iou_vm import IOUVM
from gns3server.compute.iou.iou_error import IOUError
from gns3server.compute.iou import IOU
@pytest.fixture
async def manager(loop, port_manager):
m = IOU.instance()
m.port_manager = port_manager
return m
@pytest.fixture(scope="function")
async def vm(loop, compute_project, manager, tmpdir, fake_iou_bin, iourc_file):
vm = IOUVM("test", str(uuid.uuid4()), compute_project, manager, application_id=1)
config = manager.config.get_section_config("IOU")
config["iourc_path"] = iourc_file
manager.config.set_section_config("IOU", config)
vm.path = "iou.bin"
return vm
@pytest.fixture
def iourc_file(tmpdir):
path = str(tmpdir / "iourc")
with open(path, "w+") as f:
hostname = socket.gethostname()
f.write("[license]\n{} = aaaaaaaaaaaaaaaa;".format(hostname))
return path
@pytest.fixture
def fake_iou_bin(images_dir):
"""Create a fake IOU image on disk"""
path = os.path.join(images_dir, "iou.bin")
with open(path, "w+") as f:
f.write('\x7fELF\x01\x01\x01')
os.chmod(path, stat.S_IREAD | stat.S_IEXEC)
return path
def test_vm(compute_project, manager):
vm = IOUVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
assert vm.name == "test"
assert vm.id == "00010203-0405-0607-0809-0a0b0c0d0e0f"
def test_vm_startup_config_content(compute_project, manager):
vm = IOUVM("test", "00010203-0405-0607-0808-0a0b0c0d0e0f", compute_project, manager, application_id=1)
vm.startup_config_content = "hostname %h"
assert vm.name == "test"
assert vm.startup_config_content == "hostname test"
assert vm.id == "00010203-0405-0607-0808-0a0b0c0d0e0f"
async def test_start(vm):
mock_process = MagicMock()
vm._check_requirements = AsyncioMagicMock(return_value=True)
vm._check_iou_licence = AsyncioMagicMock(return_value=True)
vm._start_ubridge = AsyncioMagicMock(return_value=True)
vm._ubridge_send = AsyncioMagicMock()
with asyncio_patch("asyncio.create_subprocess_exec", return_value=mock_process) as mock_exec:
mock_process.returncode = None
await vm.start()
assert vm.is_running()
assert vm.command_line == ' '.join(mock_exec.call_args[0])
assert vm._check_requirements.called
assert vm._check_iou_licence.called
assert vm._start_ubridge.called
vm._ubridge_send.assert_any_call("iol_bridge delete IOL-BRIDGE-513")
vm._ubridge_send.assert_any_call("iol_bridge create IOL-BRIDGE-513 513")
vm._ubridge_send.assert_any_call("iol_bridge start IOL-BRIDGE-513")
async def test_start_with_iourc(vm, tmpdir):
fake_file = str(tmpdir / "iourc")
with open(fake_file, "w+") as f:
f.write("1")
mock_process = MagicMock()
vm._check_requirements = AsyncioMagicMock(return_value=True)
vm._check_iou_licence = AsyncioMagicMock(return_value=True)
vm._start_ioucon = AsyncioMagicMock(return_value=True)
vm._start_ubridge = AsyncioMagicMock(return_value=True)
vm._ubridge_send = AsyncioMagicMock()
with patch("gns3server.config.Config.get_section_config", return_value={"iourc_path": fake_file}):
with asyncio_patch("asyncio.create_subprocess_exec", return_value=mock_process) as exec_mock:
mock_process.returncode = None
await vm.start()
assert vm.is_running()
arsgs, kwargs = exec_mock.call_args
assert kwargs["env"]["IOURC"] == fake_file
async def test_rename_nvram_file(vm):
"""
It should rename the nvram file to the correct name before launching the VM
"""
with open(os.path.join(vm.working_dir, "nvram_0000{}".format(vm.application_id + 1)), 'w+') as f:
f.write("1")
with open(os.path.join(vm.working_dir, "vlan.dat-0000{}".format(vm.application_id + 1)), 'w+') as f:
f.write("1")
vm._rename_nvram_file()
assert os.path.exists(os.path.join(vm.working_dir, "nvram_0000{}".format(vm.application_id)))
assert os.path.exists(os.path.join(vm.working_dir, "vlan.dat-0000{}".format(vm.application_id)))
async def test_stop(vm):
process = MagicMock()
vm._check_requirements = AsyncioMagicMock(return_value=True)
vm._check_iou_licence = AsyncioMagicMock(return_value=True)
vm._start_ioucon = AsyncioMagicMock(return_value=True)
vm._start_ubridge = AsyncioMagicMock(return_value=True)
vm._ubridge_send = AsyncioMagicMock()
# Wait process kill success
future = asyncio.Future()
future.set_result(True)
process.wait.return_value = future
with asyncio_patch("asyncio.create_subprocess_exec", return_value=process):
with asyncio_patch("gns3server.utils.asyncio.wait_for_process_termination"):
await vm.start()
process.returncode = None
assert vm.is_running()
await vm.stop()
assert vm.is_running() is False
process.terminate.assert_called_with()
async def test_reload(vm, fake_iou_bin):
process = MagicMock()
vm._check_requirements = AsyncioMagicMock(return_value=True)
vm._check_iou_licence = AsyncioMagicMock(return_value=True)
vm._start_ioucon = AsyncioMagicMock(return_value=True)
vm._start_ubridge = AsyncioMagicMock(return_value=True)
vm._ubridge_send = AsyncioMagicMock()
# Wait process kill success
future = asyncio.Future()
future.set_result(True)
process.wait.return_value = future
process.returncode = None
with asyncio_patch("asyncio.create_subprocess_exec", return_value=process):
with asyncio_patch("gns3server.utils.asyncio.wait_for_process_termination"):
await vm.start()
assert vm.is_running()
await vm.reload()
assert vm.is_running() is True
process.terminate.assert_called_with()
async def test_close(vm, port_manager):
vm._start_ubridge = AsyncioMagicMock(return_value=True)
vm._ubridge_send = AsyncioMagicMock()
with asyncio_patch("gns3server.compute.iou.iou_vm.IOUVM._check_requirements", return_value=True):
with asyncio_patch("asyncio.create_subprocess_exec", return_value=MagicMock()):
await vm.start()
port = vm.console
await vm.close()
# Raise an exception if the port is not free
port_manager.reserve_tcp_port(port, vm.project)
assert vm.is_running() is False
def test_path(vm, fake_iou_bin, config):
config.set_section_config("Server", {"local": True})
vm.path = fake_iou_bin
assert vm.path == fake_iou_bin
def test_path_relative(vm, fake_iou_bin):
vm.path = "iou.bin"
assert vm.path == fake_iou_bin
def test_path_invalid_bin(vm, tmpdir, config):
config.set_section_config("Server", {"local": True})
path = str(tmpdir / "test.bin")
with open(path, "w+") as f:
f.write("BUG")
with pytest.raises(IOUError):
vm.path = path
vm._check_requirements()
def test_create_netmap_config(vm):
vm._create_netmap_config()
netmap_path = os.path.join(vm.working_dir, "NETMAP")
with open(netmap_path) as f:
content = f.read()
assert "513:0/0 1:0/0" in content
assert "513:15/3 1:15/3" in content
async def test_build_command(vm):
assert await vm._build_command() == [vm.path, str(vm.application_id)]
def test_get_startup_config(vm):
content = "service timestamps debug datetime msec\nservice timestamps log datetime msec\nno service password-encryption"
vm.startup_config = content
assert vm.startup_config == content
def test_update_startup_config(vm):
content = "service timestamps debug datetime msec\nservice timestamps log datetime msec\nno service password-encryption"
vm.startup_config_content = content
filepath = os.path.join(vm.working_dir, "startup-config.cfg")
assert os.path.exists(filepath)
with open(filepath) as f:
assert f.read() == content
def test_update_startup_config_empty(vm):
content = "service timestamps debug datetime msec\nservice timestamps log datetime msec\nno service password-encryption"
vm.startup_config_content = content
filepath = os.path.join(vm.working_dir, "startup-config.cfg")
assert os.path.exists(filepath)
with open(filepath) as f:
assert f.read() == content
vm.startup_config_content = ""
with open(filepath) as f:
assert f.read() == content
def test_update_startup_config_content_hostname(vm):
content = "hostname %h\n"
vm.name = "pc1"
vm.startup_config_content = content
with open(vm.startup_config_file) as f:
assert f.read() == "hostname pc1\n"
def test_change_name(vm):
path = os.path.join(vm.working_dir, "startup-config.cfg")
vm.name = "world"
with open(path, 'w+') as f:
f.write("hostname world")
vm.name = "hello"
assert vm.name == "hello"
with open(path) as f:
assert f.read() == "hostname hello"
# support hostname not sync
vm.name = "alpha"
with open(path, 'w+') as f:
f.write("no service password-encryption\nhostname beta\nno ip icmp rate-limit unreachable")
vm.name = "charlie"
assert vm.name == "charlie"
with open(path) as f:
assert f.read() == "no service password-encryption\nhostname charlie\nno ip icmp rate-limit unreachable"
async def test_library_check(vm):
with asyncio_patch("gns3server.utils.asyncio.subprocess_check_output", return_value=""):
await vm._library_check()
with asyncio_patch("gns3server.utils.asyncio.subprocess_check_output", return_value="libssl => not found"):
with pytest.raises(IOUError):
await vm._library_check()
async def test_enable_l1_keepalives(vm):
with asyncio_patch("gns3server.utils.asyncio.subprocess_check_output", return_value="***************************************************************\n\n-l Enable Layer 1 keepalive messages\n-u <n> UDP port base for distributed networks\n"):
command = ["test"]
await vm._enable_l1_keepalives(command)
assert command == ["test", "-l"]
with asyncio_patch("gns3server.utils.asyncio.subprocess_check_output", return_value="***************************************************************\n\n-u <n> UDP port base for distributed networks\n"):
command = ["test"]
with pytest.raises(IOUError):
await vm._enable_l1_keepalives(command)
assert command == ["test"]
async def test_start_capture(vm, tmpdir, manager, free_console_port):
output_file = str(tmpdir / "test.pcap")
nio = manager.create_nio({"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"})
await vm.adapter_add_nio_binding(0, 0, nio)
await vm.start_capture(0, 0, output_file)
assert vm._adapters[0].get_nio(0).capturing
async def test_stop_capture(vm, tmpdir, manager, free_console_port):
output_file = str(tmpdir / "test.pcap")
nio = manager.create_nio({"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"})
await vm.adapter_add_nio_binding(0, 0, nio)
await vm.start_capture(0, 0, output_file)
assert vm._adapters[0].get_nio(0).capturing
await vm.stop_capture(0, 0)
assert vm._adapters[0].get_nio(0).capturing is False
def test_get_legacy_vm_workdir():
assert IOU.get_legacy_vm_workdir(42, "bla") == "iou/device-42"
async def test_invalid_iou_file(vm, iourc_file):
hostname = socket.gethostname()
await vm._check_iou_licence()
# Missing ;
with pytest.raises(IOUError):
with open(iourc_file, "w+") as f:
f.write("[license]\n{} = aaaaaaaaaaaaaaaa".format(hostname))
await vm._check_iou_licence()
# Key too short
with pytest.raises(IOUError):
with open(iourc_file, "w+") as f:
f.write("[license]\n{} = aaaaaaaaaaaaaa;".format(hostname))
await vm._check_iou_licence()
# Invalid hostname
with pytest.raises(IOUError):
with open(iourc_file, "w+") as f:
f.write("[license]\nbla = aaaaaaaaaaaaaa;")
await vm._check_iou_licence()
# Missing licence section
with pytest.raises(IOUError):
with open(iourc_file, "w+") as f:
f.write("[licensetest]\n{} = aaaaaaaaaaaaaaaa;")
await vm._check_iou_licence()
# Broken config file
with pytest.raises(IOUError):
with open(iourc_file, "w+") as f:
f.write("[")
await vm._check_iou_licence()
# Missing file
with pytest.raises(IOUError):
os.remove(iourc_file)
await vm._check_iou_licence()
def test_iourc_content(vm):
vm.iourc_content = "test"
with open(os.path.join(vm.temporary_directory, "iourc")) as f:
assert f.read() == "test"
def test_iourc_content_fix_carriage_return(vm):
vm.iourc_content = "test\r\n12"
with open(os.path.join(vm.temporary_directory, "iourc")) as f:
assert f.read() == "test\n12"
def test_extract_configs(vm):
assert vm.extract_configs() == (None, None)
with open(os.path.join(vm.working_dir, "nvram_00001"), "w+") as f:
f.write("CORRUPTED")
assert vm.extract_configs() == (None, None)
with open(os.path.join(vm.working_dir, "nvram_00001"), "w+") as f:
f.write("CORRUPTED")
assert vm.extract_configs() == (None, None)
shutil.copy("tests/resources/nvram_iou", os.path.join(vm.working_dir, "nvram_00001"))
startup_config, private_config = vm.extract_configs()
assert len(startup_config) == 1392
assert len(private_config) == 0
def test_application_id(compute_project, manager):
"""
Checks if uses local manager to get application_id when not set
"""
vm = IOUVM("test", str(uuid.uuid4()), compute_project, manager, application_id=1)
assert vm.application_id == 1
vm.application_id = 3
assert vm.application_id == 3