lorax/tests/pylorax/test_creator.py
Brian C. Lane bab4b20d0d Add tests to test_creator.py
Add a /.in-container file to the container root so that tests requiring root
and loop device support will be skipped when running in a container.
2018-11-12 11:13:37 -08:00

146 lines
7.5 KiB
Python

#
# Copyright (C) 2018 Red Hat, 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 2 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 os
import tempfile
import unittest
import xml.etree.ElementTree as ET
from ..lib import get_file_magic
from pylorax import find_templates
from pylorax.base import DataHolder
from pylorax.creator import FakeDNF, create_pxe_config, make_appliance, make_squashfs, squashfs_args
from pylorax.creator import get_arch, find_ostree_root
from pylorax.executils import runcmd
from pylorax.imgutils import mksparse
from pylorax.sysutils import joinpaths
class CreatorTest(unittest.TestCase):
def fakednf_test(self):
"""Test FakeDNF class"""
fake_dbo = FakeDNF(conf=DataHolder(installroot="/a/fake/install/root/"))
self.assertEqual(fake_dbo.conf.installroot, "/a/fake/install/root/")
def squashfs_args_test(self):
"""Test squashfs_args results"""
test_arches = {"x86_64": ("xz", ["-Xbcj", "x86"]),
"ppc64": ("xz", ["-Xbcj", "powerpc"]),
"ppc64le": ("xz", ["-Xbcj", "powerpc"]),
"s390x": ("xz", []),
"ia64": ("xz", []),
"aarch64": ("xz", [])
}
for arch in test_arches:
opts = DataHolder(compression=None, arch=arch)
self.assertEqual(squashfs_args(opts), test_arches[arch], (opts, squashfs_args(opts)))
opts = DataHolder(compression="lzma", arch="x86_64")
self.assertEqual(squashfs_args(opts), ("lzma", []), (opts, squashfs_args(opts)))
def make_appliance_test(self):
"""Test creating the appliance description XML file"""
lorax_templates = find_templates("./share/")
appliance_template = joinpaths(lorax_templates, "appliance/libvirt.tmpl")
self.assertTrue(os.path.exists(appliance_template))
# A fake disk image
with tempfile.NamedTemporaryFile(prefix="lorax.test.disk.") as disk_img:
open(disk_img.name, "wb").write(b"THIS IS A FAKE DISK IMAGE FILE")
with tempfile.NamedTemporaryFile(prefix="lorax.test.appliance.") as output_xml:
make_appliance(disk_img.name, "test-appliance", appliance_template, output_xml.name,
["eth0", "eth1"], ram=4096, vcpus=8, arch="x86_64",
title="Lorax Test", project="Fedora", releasever="30")
print(open(output_xml.name).read())
# Parse the XML and check for known fields
tree = ET.parse(output_xml.name)
image = tree.getroot()
self.assertEqual(image.find("name").text, "test-appliance")
boot = image.find("./domain/boot")
self.assertEqual(boot.get("type"), "hvm")
self.assertEqual(boot.find("./guest/arch").text, "x86_64")
self.assertEqual(boot.find("./os/loader").get("dev"), "hd")
self.assertTrue(boot.find("drive").get("disk").startswith("lorax.test.disk."))
self.assertEqual(boot.find("drive").get("target"), "hda")
devices = image.find("./domain/devices")
self.assertEqual(devices.find("vcpu").text, "8")
self.assertEqual(devices.find("memory").text, "4096")
self.assertTrue(len(devices.findall("interface")), 2)
storage = image.find("storage")
self.assertTrue(storage.find("disk").get("file").startswith("lorax.test.disk."))
self.assertEqual(storage.find("./disk/checksum").get("type"), "sha256")
self.assertEqual(storage.find("./disk/checksum").text, "90611458b33009998f73e25ccc3766b31a8b548cc6c2d84f78ae0e84d64e10a5")
def pxe_config_test(self):
"""Test creation of a PXE config file"""
with tempfile.TemporaryDirectory(prefix="lorax.test.") as work_dir:
live_image_name = "live-rootfs.squashfs.img"
add_pxe_args = ["ostree=/mnt/sysimage/"]
lorax_templates = find_templates("./share/")
template = joinpaths(lorax_templates, "pxe-live/pxe-config.tmpl")
# Make a fake kernel and initrd
open(joinpaths(work_dir, "vmlinuz-4.18.13-200.fc28.x86_64"), "w").write("I AM A FAKE KERNEL")
open(joinpaths(work_dir, "initramfs-4.18.13-200.fc28.x86_64.img"), "w").write("I AM A FAKE INITRD")
# Create the PXE_CONFIG in work_dir
create_pxe_config(template, work_dir, live_image_name, add_pxe_args)
print(open(joinpaths(work_dir, "PXE_CONFIG")).read())
pxe_config = open(joinpaths(work_dir, "PXE_CONFIG")).read()
self.assertTrue("vmlinuz-4.18.13-200.fc28.x86_64" in pxe_config)
self.assertTrue("initramfs-4.18.13-200.fc28.x86_64.img" in pxe_config)
self.assertTrue("/live-rootfs.squashfs.img ostree=/mnt/sysimage/" in pxe_config)
def make_squashfs_test(self):
"""Test making a squashfs image"""
with tempfile.TemporaryDirectory(prefix="lorax.test.") as work_dir:
with tempfile.NamedTemporaryFile(prefix="lorax.test.disk.") as disk_img:
# Make a small ext4 disk image
mksparse(disk_img.name, 42 * 1024**2)
runcmd(["mkfs.ext4", "-L", "Anaconda", "-b", "4096", "-m", "0", disk_img.name])
opts = DataHolder(compression="xz", arch="x86_64")
make_squashfs(opts, disk_img.name, work_dir)
# Make sure it made an install.img
self.assertTrue(os.path.exists(joinpaths(work_dir, "images/install.img")))
# Make sure it looks like a squashfs filesystem
file_details = get_file_magic(joinpaths(work_dir, "images/install.img"))
self.assertTrue("Squashfs" in file_details)
def get_arch_test(self):
"""Test getting the arch of the installed kernel"""
with tempfile.TemporaryDirectory(prefix="lorax.test.") as work_dir:
# Make a fake kernel and initrd
os.makedirs(joinpaths(work_dir, "boot"))
open(joinpaths(work_dir, "boot", "vmlinuz-4.18.13-200.fc28.x86_64"), "w").write("I AM A FAKE KERNEL")
open(joinpaths(work_dir, "boot", "initramfs-4.18.13-200.fc28.x86_64.img"), "w").write("I AM A FAKE INITRD")
arch = get_arch(work_dir)
self.assertTrue(arch == "x86_64")
def find_ostree_root_test(self):
with tempfile.TemporaryDirectory(prefix="lorax.test.") as work_dir:
ostree_path = "ostree/boot.1/apu/c8f294c479fc948375a001f06bc524d02900d32c6a1a72061a1dc281e9e93e41/0"
os.makedirs(joinpaths(work_dir, ostree_path))
self.assertEqual(find_ostree_root(work_dir), ostree_path)
@unittest.skipUnless(os.geteuid() == 0 and not os.path.exists("/.in-container"), "requires root privileges, and no containers")
def boot_over_root_test(self):
"""Test the mount_boot_part_over_root ostree function"""
# Make a fake disk image with a / and a /boot/loader.0
# Mount the / partition