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test: fit: add test case for invalid default configuration reference

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Recent changes to mkimage introduced a validation step to ensure that
the 'default' property under the /configurations node in a FIT image
references a valid configuration subnode. If the referenced node is
missing, mkimage will now return an error.

This patch adds a Python test case to verify that mkimage correctly
fails when the 'default' configuration does not exist. The test creates
a minimal ITS with an invalid default reference and checks that mkimage
produces the expected error message.

Signed-off-by: Aristo Chen <aristo.chen@canonical.com>
This commit is contained in:
Aristo Chen 2025-07-15 13:03:07 +00:00 committed by Tom Rini
parent edb4bf3868
commit 93d09d3bd8
1 changed files with 45 additions and 0 deletions
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45
test/py/tests/test_fit_mkimage_validate.py
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@ -7,6 +7,7 @@ import os
import subprocess
import pytest
import fit_util
import re
@pytest.mark.boardspec('sandbox')
@pytest.mark.requiredtool('dtc')
@ -56,3 +57,47 @@ def test_fit_invalid_image_reference(ubman):
assert result.returncode != 0, "mkimage should fail due to missing image reference"
assert "references undefined image 'notexist'" in result.stderr
def test_fit_invalid_default_config(ubman):
"""Test that mkimage fails when default config is missing"""
its_fname = fit_util.make_fname(ubman, "invalid.its")
itb_fname = fit_util.make_fname(ubman, "invalid.itb")
kernel = fit_util.make_kernel(ubman, 'kernel.bin', 'kernel')
# Write ITS with an invalid reference to a nonexistent default config
its_text = '''
/dts-v1/;
/ {
images {
kernel@1 {
description = "Test Kernel";
data = /incbin/("kernel.bin");
type = "kernel";
arch = "sandbox";
os = "linux";
compression = "none";
load = <0x40000>;
entry = <0x40000>;
};
};
configurations {
default = "conf@1";
conf@2 {
kernel = "kernel@1";
};
};
};
'''
with open(its_fname, 'w') as f:
f.write(its_text)
mkimage = os.path.join(ubman.config.build_dir, 'tools/mkimage')
cmd = [mkimage, '-f', its_fname, itb_fname]
result = subprocess.run(cmd, capture_output=True, text=True)
assert result.returncode != 0, "mkimage should fail due to missing default config"
assert re.search(r"Default configuration '.*' not found under /configurations", result.stderr)