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oeqa/bblayers.py: add tests for adding new built-in fragments

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Add discussed in [1], our best option for customizing built-in fragments
is to pass them from a layer configuration. In short, the reason is that
our statement must be parsed before the addfragments call is parsed.We
also have to use the :append override as using += would override the
original definition of OE_FRAGMENTS_BUILTIN (since it uses a ?=
assignment).

Provide a test case for customizing built-in fragments with
meta-selftest.

[1]: https://lore.kernel.org/yocto-docs/20250925-fragments-v1-0-c9f747361fb2@bootlin.com/T/#m9f7c9f110c084eba17e0f64d8b2ac7a88af3f38e

Cc: Alexander Kanavin <alex.kanavin@gmail.com>
(From OE-Core rev: 38cbf4c0ce5173dc3080fa0fbb3ec3e7926c8137)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Antonin Godard
2025-09-26 11:46:53 +02:00
committed by Richard Purdie
parent 1c4fae5732
commit fb086f85b7
2 changed files with 31 additions and 0 deletions
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2
meta-selftest/conf/layer.conf
View File

@@ -12,3 +12,5 @@ BBFILE_PRIORITY_selftest = "5"
addpylib ${LAYERDIR}/lib oeqa
LAYERSERIES_COMPAT_selftest = "whinlatter"
OE_FRAGMENTS_BUILTIN:append = " selftest-fragment:SELFTEST_BUILTIN_FRAGMENT_VARIABLE"

29
meta/lib/oeqa/selftest/cases/bblayers.py
View File

@@ -272,6 +272,35 @@ class BitbakeConfigBuild(OESelftestTestCase):
self.assertEqual(get_bb_var('SELFTEST_FRAGMENT_VARIABLE'), None)
self.assertEqual(get_bb_var('SELFTEST_FRAGMENT_ANOTHER_VARIABLE'), None)
def test_enable_disable_builtin_fragments(self):
"""
Tests that the meta-selftest properly adds a new built-in fragment from
its layer.conf configuration file.
The test sequence goes as follows:
1. Verify that SELFTEST_BUILTIN_FRAGMENT_VARIABLE is not set yet.
2. Verify that SELFTEST_BUILTIN_FRAGMENT_VARIABLE is set after setting
the fragment.
3. Verify that SELFTEST_BUILTIN_FRAGMENT_VARIABLE is set after setting
the fragment with another value that overrides the first one.
4. Verify that SELFTEST_BUILTIN_FRAGMENT_VARIABLE is set to the previous
value after removing the second assignment (from step 3).
5. Verify that SELFTEST_BUILTIN_FRAGMENT_VARIABLE is not set after
removing the original assignment.
"""
self.assertEqual(get_bb_var('SELFTEST_BUILTIN_FRAGMENT_VARIABLE'), None)
runCmd('bitbake-config-build enable-fragment selftest-fragment/somevalue')
self.assertEqual(get_bb_var('SELFTEST_BUILTIN_FRAGMENT_VARIABLE'), 'somevalue')
runCmd('bitbake-config-build enable-fragment selftest-fragment/someothervalue')
self.assertEqual(get_bb_var('SELFTEST_BUILTIN_FRAGMENT_VARIABLE'), 'someothervalue')
runCmd('bitbake-config-build disable-fragment selftest-fragment/someothervalue')
self.assertEqual(get_bb_var('SELFTEST_BUILTIN_FRAGMENT_VARIABLE'), 'somevalue')
runCmd('bitbake-config-build disable-fragment selftest-fragment/somevalue')
self.assertEqual(get_bb_var('SELFTEST_BUILTIN_FRAGMENT_VARIABLE'), None)
def test_show_fragment(self):
"""
Test that bitbake-config-build show-fragment returns the expected