debian-forge/test/mod/test_util_bls.py
Michael Vogt d38665a2af util: tweak bls.options_append() support no/multiple options
The BLS specification [0] says the `options` field is optional and
can also appear multiple times. This commit tweaks the code to
deal with these corner cases and also adds tests that ensure that
this works correctly.

It also tweaks the file handling to be atomic.

[0] https://uapi-group.org/specifications/specs/boot_loader_specification/
2024-02-28 10:37:01 +01:00

56 lines
1.8 KiB
Python

#
# Test for the util/bls.py
#
import textwrap
from osbuild.util import bls
def make_fake_bls_file(rootdir, kernel_opts):
if kernel_opts:
options = f"options {kernel_opts}"
else:
options = ""
bls_path = rootdir / "loader/entries/test.conf"
bls_path.parent.mkdir(exist_ok=True, parents=True)
bls_path.write_text(textwrap.dedent(f"""\
title Fedora 19 (Rawhide)
sort-key fedora
machine-id 6a9857a393724b7a981ebb5b8495b9ea
version 3.8.0-2.fc19.x86_64
{options}
architecture x64
linux /6a9857a393724b7a981ebb5b8495b9ea/3.8.0-2.fc19.x86_64/linux
initrd /6a9857a393724b7a981ebb5b8495b9ea/3.8.0-2.fc19.x86_64/initrd
"""), encoding="utf8")
return bls_path
def test_options_append_one(tmp_path):
bls_path = make_fake_bls_file(tmp_path, "root=/dev/sda1 quiet")
bls.options_append(tmp_path, ["splash", "console=ttyS0"])
new_content = bls_path.read_text(encoding="utf8")
assert "\noptions root=/dev/sda1 quiet splash console=ttyS0\n" in new_content
def test_options_append_none(tmp_path):
bls_path = make_fake_bls_file(tmp_path, "")
bls.options_append(tmp_path, ["splash", "console=ttyS0"])
new_content = bls_path.read_text(encoding="utf8")
assert "\noptions splash console=ttyS0\n" in new_content
def test_options_append_multiple(tmp_path):
bls_path = make_fake_bls_file(tmp_path, "root=/dev/sda1")
with bls_path.open("a") as fp:
fp.write("options quiet")
bls.options_append(tmp_path, ["splash", "console=ttyS0"])
new_content = bls_path.read_text(encoding="utf8")
options = [line for line in new_content.split("\n")
if line.startswith("options ")]
# note that the new options only got added once
assert options == [
"options root=/dev/sda1 splash console=ttyS0",
"options quiet",
]