qubes-installer-qubes-os/anaconda/tests/dracut_tests/test_driver_updates.py
M. Vefa Bicakci 38f3e28d77
anaconda: Update to 23.19.10
Use the output of

  git diff --full-index --binary anaconda-22.20.13-1..anaconda-23.19.10-1

from anaconda's git repository and fix-up merge conflicts.
2016-04-10 00:00:00 -04:00

634 lines
26 KiB
Python

# test_driver_updates.py - unittests for driver_updates.py
# Ignore any interruptible calls
# pylint: disable=interruptible-system-call
import unittest
try:
import unittest.mock as mock
except ImportError:
import mock
import os
import tempfile
import shutil
import sys
sys.path.append(os.path.normpath(os.path.dirname(__file__)+'/../../dracut'))
from driver_updates import copy_files, move_files, iter_files, ensure_dir
from driver_updates import append_line, mkdir_seq
def touch(path):
try:
open(path, 'a')
except IOError as e:
if e.errno != 17: raise
def makedir(path):
ensure_dir(path)
return path
def makefile(path):
makedir(os.path.dirname(path))
touch(path)
return path
def makefiles(*paths):
return [makefile(p) for p in paths]
class FileTestCaseBase(unittest.TestCase):
def setUp(self):
self.tmpdir = tempfile.mkdtemp(prefix="test_driver_updates.")
self.srcdir = self.tmpdir+'/src/'
self.destdir = self.tmpdir+'/dest/'
def tearDown(self):
shutil.rmtree(self.tmpdir, ignore_errors=True)
def makefiles(self, *paths):
return [makefile(os.path.normpath(self.tmpdir+'/'+p)) for p in paths]
class SelfTestCase(FileTestCaseBase):
def test_makefiles(self):
"""check test helpers"""
filepaths = ["sub/dir/test.file", "testfile"]
self.makefiles(*filepaths)
for f in filepaths:
self.assertTrue(os.path.exists(self.tmpdir+'/'+f))
class TestCopyFiles(FileTestCaseBase):
def test_basic(self):
"""copy_file: copy files into destdir, leaving existing contents"""
files = self.makefiles("src/file1", "src/subdir/file2")
self.makefiles("dest/file3")
copy_files(files, self.destdir)
result = set(os.listdir(self.destdir))
self.assertEqual(result, set(["file1", "file2", "file3"]))
def test_overwrite(self):
"""copy_file: overwrite files in destdir if they have the same name"""
src, dest = self.makefiles("src/file1", "dest/file1")
with open(src, 'w') as outf:
outf.write("srcfile")
with open(dest, 'w') as outf:
outf.write("destfile")
copy_files([src], self.destdir)
self.assertEqual(os.listdir(self.destdir), ["file1"])
self.assertEqual(open(dest).read(), "srcfile")
def test_samefile(self):
"""copy_file: skip files already in destdir"""
(dest,) = self.makefiles("dest/file1")
with open(dest, 'w') as outf:
outf.write("destfile")
copy_files([dest], self.destdir)
self.assertEqual(os.listdir(self.destdir), ["file1"])
self.assertEqual(open(dest).read(), "destfile")
def test_copy_to_parent(self):
"""copy_file: skip files in subdirs of destdir"""
files = self.makefiles("dest/subdir/file1")
copy_files(files, self.destdir)
self.assertEqual(list(iter_files(self.destdir)), files)
class TestIterFiles(FileTestCaseBase):
def test_basic(self):
"""iter_files: iterates over full paths to files under topdir"""
files = set(self.makefiles("src/file1", "dest/file2", "src/sub/file3"))
makedir(self.tmpdir+'/empty/dir')
result = set(iter_files(self.tmpdir))
self.assertEqual(files, result)
def test_pattern(self):
"""iter_files: match filename against glob pattern"""
self.makefiles("src/file1.so", "src/sub.ko/file2")
goodfiles = set(self.makefiles("src/sub/file1.ko", "src/file2.ko.xz"))
result = set(iter_files(self.tmpdir, pattern="*.ko*"))
self.assertEqual(result, goodfiles)
class TestMoveFiles(FileTestCaseBase):
def test_basic(self):
"""move_files: move files to destdir"""
files = self.makefiles("src/file1", "src/subdir/file2")
move_files(files, self.destdir)
self.assertEqual(set(os.listdir(self.destdir)), set(["file1", "file2"]))
self.assertEqual(list(iter_files(self.srcdir)), [])
def test_overwrite(self):
"""move_files: overwrite files with the same name"""
src, dest = self.makefiles("src/file1", "dest/file1")
with open(src, 'w') as outf:
outf.write("srcfile")
with open(dest, 'w') as outf:
outf.write("destfile")
move_files([src], self.destdir)
self.assertEqual(os.listdir(self.destdir), ["file1"])
self.assertEqual(open(dest).read(), "srcfile")
self.assertEqual(list(iter_files(self.srcdir)), [])
def test_samefile(self):
"""move_files: leave files alone if they're already in destdir"""
(dest,) = self.makefiles("dest/file1")
with open(dest, 'w') as outf:
outf.write("destfile")
move_files([dest], self.destdir)
self.assertEqual(os.listdir(self.destdir), ["file1"])
self.assertEqual(open(dest).read(), "destfile")
def test_move_to_parent(self):
"""move_files: leave files alone if they're in a subdir of destdir"""
files = set(self.makefiles("dest/subdir/file1", "dest/file2"))
move_files(files, self.destdir)
self.assertEqual(set(iter_files(self.destdir)), files)
class TestAppendLine(FileTestCaseBase):
def test_empty(self):
"""append_line: create file + append \\n when needed"""
line = "this is a line of text with no newline"
outfile = self.tmpdir+'/outfile'
append_line(outfile, line)
self.assertEqual(open(outfile).read(), line+'\n')
def test_append(self):
"""append_line: adds a line to the end of an existing file"""
oldlines = ["line one", "line two", "and I'm line three"]
outfile = self.tmpdir+'/outfile'
with open(outfile, 'w') as outf:
for line in oldlines:
outf.write(line+'\n')
line = "this line contains a newline already\n"
append_line(outfile, line)
self.assertEqual(open(outfile).read(), '\n'.join(oldlines+[line]))
from driver_updates import read_lines
class TestReadLine(FileTestCaseBase):
def test_empty(self):
"""read_lines: return [] for empty file"""
[empty] = self.makefiles("emptyfile")
self.assertEqual(read_lines(empty), [])
def test_missing(self):
"""read_lines: return [] for missing file"""
self.assertEqual(read_lines(self.tmpdir+'/no-such-file'),[])
def test_readlines(self):
"""read_lines: returns a list of lines without trailing newlines"""
filedata = 'line one\nline two\n\nline four\n'
outfile = self.tmpdir+'/outfile'
with open(outfile, 'w') as outf:
outf.write(filedata)
lines = read_lines(outfile)
self.assertEqual(lines, ['line one', 'line two','','line four'])
def test_readline_and_append_line(self):
"""read_lines: returns items as passed to append_line"""
filename = self.tmpdir+'/outfile'
items = ["one", "two", "five"]
for i in items:
append_line(filename, i)
self.assertEqual(items, read_lines(filename))
class TestMkdirSeq(FileTestCaseBase):
def test_basic(self):
"""mkdir_seq: first dir ends with 1"""
newdir = mkdir_seq(self.srcdir+'/DD-')
self.assertEqual(newdir, self.srcdir+'/DD-1')
self.assertTrue(os.path.isdir(newdir))
def test_one_exists(self):
"""mkdir_seq: increment number if file exists"""
firstdir = mkdir_seq(self.srcdir+'/DD-')
newdir = mkdir_seq(self.srcdir+'/DD-')
self.assertEqual(newdir, self.srcdir+'/DD-2')
self.assertTrue(os.path.isdir(newdir))
self.assertTrue(os.path.isdir(firstdir))
from driver_updates import find_repos, save_repo, ARCH
# As far as we know, this is what makes a valid repo: rhdd3 + rpms/`uname -m`/
def makerepo(topdir, desc=None):
descfile = makefile(topdir+'/rhdd3')
if not desc:
desc = os.path.basename(topdir)
with open(descfile, "w") as outf:
outf.write(desc+"\n")
makedir(topdir+'/rpms/'+ARCH)
class TestFindRepos(FileTestCaseBase):
def test_basic(self):
"""find_repos: return RPM dir if a valid repo is found"""
makerepo(self.tmpdir)
repos = find_repos(self.tmpdir)
self.assertEqual(repos, [self.tmpdir+'/rpms/'+ARCH])
self.assertTrue(os.path.isdir(repos[0]))
def test_multiple_subdirs(self):
"""find_repos: descend multiple subdirs if needed"""
makerepo(self.tmpdir+'/driver1')
makerepo(self.tmpdir+'/sub/driver1')
makerepo(self.tmpdir+'/sub/driver2')
repos = find_repos(self.tmpdir)
self.assertEqual(len(repos),3)
class TestSaveRepo(FileTestCaseBase):
def test_basic(self):
"""save_repo: copies a directory to /run/install/DD-X"""
makerepo(self.srcdir)
repo = find_repos(self.srcdir)[0]
makefile(repo+'/fake-something.rpm')
saved = save_repo(repo, target=self.destdir)
self.assertEqual(set(os.listdir(saved)), set(["fake-something.rpm"]))
self.assertEqual(saved, os.path.join(self.destdir, "DD-1"))
from driver_updates import mount, umount, mounted
class MountTestCase(unittest.TestCase):
@mock.patch('driver_updates.mkdir_seq')
@mock.patch('driver_updates.subprocess.check_call')
def test_mkdir(self, check_call, mkdir):
"""mount: makes mountpoint if needed"""
dev, mnt = '/dev/fake', '/media/DD-1'
mkdir.return_value = mnt
mountpoint = mount(dev)
mkdir.assert_called_once_with('/media/DD-')
check_call.assert_called_once_with(["mount", dev, mnt])
self.assertEqual(mnt, mountpoint)
@mock.patch('driver_updates.mkdir_seq')
@mock.patch('driver_updates.subprocess.check_call')
def test_basic(self, check_call, mkdir):
"""mount: calls mount(8) to mount a device/image"""
dev, mnt = '/dev/fake', '/media/fake'
mount(dev, mnt)
check_call.assert_called_once_with(["mount", dev, mnt])
self.assertFalse(mkdir.called)
@mock.patch('driver_updates.subprocess.call')
def test_umount(self, call):
"""umount: calls umount(8)"""
mnt = '/mnt/fake'
umount(mnt)
call.assert_called_once_with(["umount", mnt])
@mock.patch('driver_updates.mount')
@mock.patch('driver_updates.umount')
def test_mount_manager(self, mock_umount, mock_mount):
"""mounted: context manager mounts/umounts as expected"""
dev, mnt = '/dev/fake', '/media/fake'
mock_mount.return_value = mnt
with mounted(dev, mnt) as mountpoint:
mock_mount.assert_called_once_with(dev, mnt)
self.assertFalse(mock_umount.called)
self.assertEqual(mountpoint, mnt)
mock_umount.assert_called_once_with(mnt)
# NOTE: dd_list and dd_extract get tested pretty thoroughly in tests/dd_tests,
# so this is a slightly higher-level test case
from driver_updates import dd_list, dd_extract, Driver
fake_module = Driver(
source='/repo/path/to/fake-driver-1.0-1.rpm',
name='fake-driver',
flags='modules firmwares',
description='Wow this is totally a fake driver.\nHooray for this',
repo='/repo/path/to'
)
fake_enhancement = Driver(
source='/repo/path/to/fake-enhancement-1.0-1.rpm',
name='fake-enhancement',
flags='binaries libraries',
description='This is enhancing the crap out of the installer.\n\nYeah.',
repo=fake_module.repo
)
def dd_list_output(driver):
out='{0.source}\n{0.name}\n{0.flags}\n{0.description}\n---\n'.format(driver)
return out.encode('utf-8')
class DDUtilsTestCase(unittest.TestCase):
@mock.patch("driver_updates.subprocess.check_output")
def test_dd_list(self, check_output):
"""dd_list: returns a list of Driver objects parsed from output"""
output = dd_list_output(fake_module)+dd_list_output(fake_enhancement)
check_output.return_value = output
anaconda, kernel = '19.0', os.uname()[2]
result = dd_list(fake_module.repo)
cmd = check_output.call_args[0][0]
self.assertIn(kernel, cmd)
self.assertIn(anaconda, cmd)
self.assertIn(fake_module.repo, cmd)
self.assertTrue(cmd[0].endswith("dd_list"))
self.assertEqual(len(result), 2)
mod, enh = sorted(result, key=lambda d: d.name)
self.assertEqual(mod.__dict__, fake_module.__dict__)
self.assertEqual(enh.__dict__, fake_enhancement.__dict__)
@mock.patch("driver_updates.subprocess.check_output")
def test_dd_extract(self, check_output):
"""dd_extract: call binary with expected arguments"""
rpm = "/some/kind/of/path.rpm"
outdir = "/output/dir"
dd_extract(rpm, outdir)
cmd = check_output.call_args[0][0]
self.assertIn(os.uname()[2], cmd)
self.assertIn(rpm, cmd)
self.assertIn(outdir, cmd)
self.assertIn("-blmf", cmd)
self.assertTrue(cmd[0].endswith("dd_extract"))
from driver_updates import extract_drivers, grab_driver_files, load_drivers
@mock.patch("driver_updates.ensure_dir")
@mock.patch("driver_updates.save_repo")
@mock.patch("driver_updates.append_line")
@mock.patch("driver_updates.dd_extract")
class ExtractDriversTestCase(unittest.TestCase):
def test_drivers(self, mock_extract, mock_append, mock_save, *args):
"""extract_drivers: save repo, write pkglist"""
extract_drivers(drivers=[fake_enhancement, fake_module])
# extracts all listed modules
mock_extract.assert_has_calls([
mock.call(fake_enhancement.source, "/updates"),
mock.call(fake_module.source, "/updates")
], any_order=True)
pkglist = "/run/install/dd_packages"
mock_append.assert_called_once_with(pkglist, fake_module.name)
mock_save.assert_called_once_with(fake_module.repo)
def test_enhancements(self, mock_extract, mock_append, mock_save, *args):
"""extract_drivers: extract selected drivers, don't save enhancements"""
extract_drivers(drivers=[fake_enhancement])
mock_extract.assert_called_once_with(
fake_enhancement.source, "/updates"
)
self.assertFalse(mock_append.called)
self.assertFalse(mock_save.called)
def test_repo(self, mock_extract, mock_append, mock_save, *args):
"""extract_drivers(repos=[...]) extracts all drivers from named repos"""
with mock.patch("driver_updates.dd_list", side_effect=[
[fake_enhancement],
[fake_enhancement, fake_module]]):
extract_drivers(repos=['enh_repo', 'mod_repo'])
mock_extract.assert_has_calls([
mock.call(fake_enhancement.source, "/updates"),
mock.call(fake_enhancement.source, "/updates"),
mock.call(fake_module.source, "/updates")
])
pkglist = "/run/install/dd_packages"
mock_append.assert_called_once_with(pkglist, fake_module.name)
mock_save.assert_called_once_with(fake_module.repo)
class GrabDriverFilesTestCase(FileTestCaseBase):
def test_basic(self):
"""grab_driver_files: copy drivers into place, return module list"""
# create a bunch of fake extracted files
outdir = self.tmpdir + '/extract-outdir'
moddir = outdir + "/lib/modules/%s/kernel/" % os.uname()[2]
fwdir = outdir + "/lib/firmware/"
modules = makefiles(moddir+"net/funk.ko", moddir+"fs/lolfs.ko.xz")
firmware = makefiles(fwdir+"funk.fw")
makefiles(outdir+"/usr/bin/monkey", outdir+"/other/dir/blah.ko")
mod_upd_dir = self.tmpdir+'/module-updates'
fw_upd_dir = self.tmpdir+'/fw-updates'
# use our updates dirs instead of the default updates dirs
with mock.patch.multiple("driver_updates",
MODULE_UPDATES_DIR=mod_upd_dir,
FIRMWARE_UPDATES_DIR=fw_upd_dir):
modnames = grab_driver_files(outdir)
self.assertEqual(set(modnames), set(["funk", "lolfs"]))
modfiles = set(['funk.ko', 'lolfs.ko.xz'])
fwfiles = set(['funk.fw'])
# modules/firmware are *not* in their old locations
self.assertEqual([f for f in modules+firmware if os.path.exists(f)], [])
# modules are in the system's updates dir
self.assertEqual(set(os.listdir(mod_upd_dir)), modfiles)
# modules are also in outdir's updates dir
self.assertEqual(set(os.listdir(outdir+'/'+mod_upd_dir)), modfiles)
# repeat for firmware
self.assertEqual(set(os.listdir(fw_upd_dir)), fwfiles)
self.assertEqual(set(os.listdir(outdir+'/'+fw_upd_dir)), fwfiles)
class LoadDriversTestCase(unittest.TestCase):
@mock.patch("driver_updates.subprocess.call")
def test_basic(self, call):
"""load_drivers: runs depmod and modprobes all named modules"""
modnames = ['mod1', 'mod2']
load_drivers(modnames)
call.assert_has_calls([
mock.call(["depmod", "-a"]),
mock.call(["modprobe", "-a"] + modnames)
])
from driver_updates import process_driver_disk
class ProcessDriverDiskTestCase(unittest.TestCase):
def setUp(self):
# an iterable that returns fake mountpoints, for mocking mount()
self.fakemount = ["/mnt/DD-%i" % n for n in range(1,10)]
# an iterable that returns fake repos, for mocking find_repos()
self.frepo = {
'/mnt/DD-1': ['/mnt/DD-1/repo1'],
'/mnt/DD-2': ['/mnt/DD-2/repo1', '/mnt/DD-2/repo2'],
}
# fake iso listings for iso_dir
self.fiso = {
'/mnt/DD-1': [],
'/mnt/DD-2': [],
'/mnt/DD-3': [],
}
# a context-manager object to be returned by the mock mounted()
mounted_ctx = mock.MagicMock(
__enter__=mock.MagicMock(side_effect=self.fakemount), # mount
__exit__=mock.MagicMock(return_value=None), # umount
)
self.modlist = []
# set up our patches
patches = (
mock.patch("driver_updates.mounted", return_value=mounted_ctx),
mock.patch("driver_updates.find_repos", side_effect=self.frepo.get),
mock.patch("driver_updates.find_isos", side_effect=self.fiso.get),
mock.patch("driver_updates.extract_drivers", return_value=True),
mock.patch("driver_updates.load_drivers"),
mock.patch('driver_updates.grab_driver_files',
side_effect=lambda: self.modlist),
)
self.mocks = {p.attribute:p.start() for p in patches}
for p in patches: self.addCleanup(p.stop)
def test_basic(self):
"""process_driver_disk: mount disk, extract RPMs, grab + load drivers"""
dev = '/dev/fake'
process_driver_disk(dev)
# did we mount the initial device, and then the .iso we find therein?
self.mocks['mounted'].assert_called_once_with(dev)
self.mocks['extract_drivers'].assert_called_once_with(repos=self.frepo['/mnt/DD-1'])
self.mocks['grab_driver_files'].assert_called_once_with()
self.mocks['load_drivers'].assert_called_once_with(self.modlist)
def test_recursive(self):
"""process_driver_disk: recursively process .isos at toplevel"""
dev = '/dev/fake'
# first mount has no repos, but an iso
self.frepo['/mnt/DD-1'] = []
self.fiso['/mnt/DD-1'].append('magic.iso')
self.fiso['/mnt/DD-2'].append('ignored.iso')
process_driver_disk(dev)
# did we mount the initial device, and the iso therein?
# also: we ignore ignored.iso because magic.iso is a proper DD
self.mocks['mounted'].assert_has_calls([
mock.call(dev), mock.call('magic.iso')
])
# we extracted drivers from the repo(s) in magic.iso
self.mocks['extract_drivers'].assert_called_once_with(repos=self.frepo['/mnt/DD-2'])
self.mocks['grab_driver_files'].assert_called_once_with()
self.mocks['load_drivers'].assert_called_once_with(self.modlist)
def test_no_drivers(self):
"""process_driver_disk: don't run depmod etc. if no new drivers"""
dev = '/dev/fake'
self.mocks['extract_drivers'].return_value = False
process_driver_disk(dev)
self.assertFalse(self.mocks['grab_driver_files'].called)
self.assertFalse(self.mocks['load_drivers'].called)
from driver_updates import finish, mark_finished, all_finished
class FinishedTestCase(FileTestCaseBase):
def test_mark_finished(self):
"""mark_finished: appends a line to /tmp/dd_finished"""
requeststr = "WOW SOMETHING OR OTHER"
mark_finished(requeststr, topdir=self.tmpdir)
finished = self.tmpdir+'/dd_finished'
self.assertTrue(os.path.exists(finished))
self.assertEqual(read_lines(finished), [requeststr])
def test_all_finished(self):
"""all_finished: True if all lines from dd_todo are in dd_finished"""
todo = self.tmpdir+'/dd_todo'
requests = ['one', 'two', 'final thingy']
with open(todo, 'w') as outf:
outf.write(''.join(r+'\n' for r in requests))
self.assertEqual(set(read_lines(todo)), set(requests))
for r in reversed(requests):
self.assertFalse(all_finished(topdir=self.tmpdir))
mark_finished(r, topdir=self.tmpdir)
self.assertTrue(all_finished(topdir=self.tmpdir))
def test_extra_finished(self):
"""all_finished: True if dd_finished has more items than dd_todo"""
self.test_all_finished()
mark_finished("BONUS", topdir=self.tmpdir)
self.assertTrue(all_finished(topdir=self.tmpdir))
def test_finish(self):
"""finish: mark request finished, and write dd.done if all complete"""
todo = self.tmpdir+'/dd_todo'
done = self.tmpdir+'/dd.done'
requests = ['one', 'two', 'final thingy']
with open(todo, 'w') as outf:
outf.write(''.join(r+'\n' for r in requests))
for r in reversed(requests):
print("marking %s" % r)
self.assertFalse(os.path.exists(done))
finish(r, topdir=self.tmpdir)
self.assertTrue(os.path.exists(done))
from driver_updates import get_deviceinfo, DeviceInfo
blkid_out = b'''\
DEVNAME=/dev/sda2
UUID=0f21a3d1-dcd3-4ab4-a292-c5556850d561
TYPE=ext4
DEVNAME=/dev/sda1
UUID=C53C-EE46
TYPE=vfat
DEVNAME=/dev/sda3
UUID=4126dbb6-c7d3-47b4-b1fc-9bb461df0067
TYPE=btrfs
DEVNAME=/dev/loop0
UUID=6f16967e-0388-4276-bd8d-b88e5b217a55
TYPE=ext4
'''
disk_labels = {
'/dev/sdb1': 'metroid_srv',
'/dev/loop0': 'I\\x20\u262d\\x20COMMUNISM',
'/dev/sda3': 'metroid_root'
}
devicelist = [
DeviceInfo(DEVNAME='/dev/sda2', TYPE='ext4',
UUID='0f21a3d1-dcd3-4ab4-a292-c5556850d561'),
DeviceInfo(DEVNAME='/dev/sda1', TYPE='vfat',
UUID='C53C-EE46'),
DeviceInfo(DEVNAME='/dev/sda3', TYPE='btrfs', LABEL='metroid_root',
UUID='4126dbb6-c7d3-47b4-b1fc-9bb461df0067'),
DeviceInfo(DEVNAME='/dev/loop0', TYPE='ext4',
LABEL='I\\x20\u262d\\x20COMMUNISM',
UUID='6f16967e-0388-4276-bd8d-b88e5b217a55'),
]
# also covers blkid, get_disk_labels, DeviceInfo
class DeviceInfoTestCase(unittest.TestCase):
@mock.patch('driver_updates.subprocess.check_output',return_value=blkid_out)
@mock.patch('driver_updates.get_disk_labels',return_value=disk_labels)
def test_basic(self, get_disk_labels, check_output):
"""get_deviceinfo: parses DeviceInfo from blkid etc."""
disks = get_deviceinfo()
self.assertEqual(len(disks), 4)
disks.sort(key=lambda d: d.device)
loop, efi, boot, root = disks
self.assertEqual(vars(boot), vars(devicelist[0]))
self.assertEqual(vars(efi), vars(devicelist[1]))
self.assertEqual(vars(root), vars(devicelist[2]))
self.assertEqual(vars(loop), vars(devicelist[3]))
def test_shortdev(self):
d = DeviceInfo(DEVNAME="/dev/disk/by-label/OEMDRV")
with mock.patch("os.path.realpath", return_value="/dev/i2o/hdb"):
self.assertEqual(d.shortdev, "i2o/hdb")
# TODO: test TextMenu itself
# py2/3 compat
if sys.version_info.major == 3:
from io import StringIO
else:
from io import BytesIO as StringIO
from driver_updates import device_menu
class DeviceMenuTestCase(unittest.TestCase):
def setUp(self):
patches = (
mock.patch('driver_updates.get_deviceinfo',return_value=devicelist),
)
self.mocks = {p.attribute:p.start() for p in patches}
for p in patches: self.addCleanup(p.stop)
def test_device_menu_exit(self):
"""device_menu: 'c' exits the menu"""
with mock.patch('driver_updates._input', side_effect=['c']):
dev = device_menu()
self.assertEqual(dev, [])
self.assertEqual(self.mocks['get_deviceinfo'].call_count, 1)
def test_device_menu_refresh(self):
"""device_menu: 'r' makes the menu refresh"""
with mock.patch('driver_updates._input', side_effect=['r','c']):
device_menu()
self.assertEqual(self.mocks['get_deviceinfo'].call_count, 2)
@mock.patch("sys.stdout", new_callable=StringIO)
def test_device_menu(self, stdout):
"""device_menu: choosing a number returns that Device"""
choose_num='2'
with mock.patch('driver_updates._input', return_value=choose_num):
result = device_menu()
# if you hit '2' you should get the corresponding device from the list
self.assertEqual(len(result), 1)
dev = result[0]
self.assertEqual(vars(dev), vars(devicelist[int(choose_num)-1]))
# find the corresponding line on-screen
screen = [l.strip() for l in stdout.getvalue().splitlines()]
match = [l for l in screen if l.startswith(choose_num+')')]
self.assertEqual(len(match), 1)
line = match.pop(0)
# the device name (at least) should be on this line
self.assertIn(os.path.basename(dev.device), line)