meta/lib/oeqa/selftest/cases/wic: Add tests for configuring kernel image install into boot partition.

- test_skip_kernel_install: This test verifies that the kernel is not
installed in the boot partition when the 'install-kernel-into-boot-dir'
parameter is set to false.
- test_kernel_install: This test verifies that the kernel is installed
in the boot partition when the 'install-kernel-into-boot-dir' parameter
is set to true .
Both tests use a WKS (Kickstart) file to specify the desired
configuration, build a disk image using WIC, and extract the disk image
to a temporary directory to verify the results.

Signed-off-by: Kareem Zarka <kareem.zarka@huawei.com>
---
 meta/lib/oeqa/selftest/cases/wic.py | 70 +++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

Hello Kareem,

are you planning to continue withis this review? If not i would try to 
get this merged.

On 08.03.2023 11:34, Kareem Zarka wrote:
> - test_skip_kernel_install: This test verifies that the kernel is not
> installed in the boot partition when the 'install-kernel-into-boot-dir'
> parameter is set to false.
> - test_kernel_install: This test verifies that the kernel is installed
> in the boot partition when the 'install-kernel-into-boot-dir' parameter
> is set to true .
> Both tests use a WKS (Kickstart) file to specify the desired
> configuration, build a disk image using WIC, and extract the disk image
> to a temporary directory to verify the results.
> 
> Signed-off-by: Kareem Zarka <kareem.zarka@huawei.com>
> ---
>   meta/lib/oeqa/selftest/cases/wic.py | 70 +++++++++++++++++++++++++++++
>   1 file changed, 70 insertions(+)
> 
> diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
> index b9430cdb3b..7f5db1dc73 100644
> --- a/meta/lib/oeqa/selftest/cases/wic.py
> +++ b/meta/lib/oeqa/selftest/cases/wic.py
> @@ -16,6 +16,7 @@ import hashlib
>   from glob import glob
>   from shutil import rmtree, copy
>   from tempfile import NamedTemporaryFile
> +from tempfile import TemporaryDirectory
>   
>   from oeqa.selftest.case import OESelftestTestCase
>   from oeqa.core.decorator import OETestTag
> @@ -146,6 +147,75 @@ class CLITests(OESelftestTestCase):
>           self.assertEqual(1, runCmd('wic', ignore_status=True).status)
>   
>   class Wic(WicTestCase):
> +    def test_skip_kernel_install(self):
> +        """Test the functionality of not installing the kernel in the boot directory using the wic plugin"""
> +        # Build the mtools package to support FAT filesystem handling
> +        bitbake("mtools")

I believe this should be 'bitbake("mtools-native")'. This should fix the 
error on the build server.

> +        # create a temporary file for the WKS content
> +        with NamedTemporaryFile("w", suffix=".wks") as wks:
> +            wks.write(
> +                'part --source bootimg-efi '
> +                '--sourceparams="loader=grub-efi,install-kernel-into-boot-dir=false" '
> +                '--label boot --active\n'
> +            )
> +            wks.flush()
> +            # create a temporary directory to extract the disk image to
> +            with TemporaryDirectory() as tmpdir:
> +                img = 'core-image-minimal'
> +                # build the image using the WKS file
> +                cmd = "wic create %s -e %s -o %s" % (
> +                    wks.name, img, self.resultdir)
> +                runCmd(cmd)
> +                wksname = os.path.splitext(os.path.basename(wks.name))[0]
> +                out = glob(os.path.join(
> +                    self.resultdir, "%s-*.direct" % wksname))
> +                self.assertEqual(1, len(out))
> +                # extract the content of the disk image to the temporary directory
> +                cmd = "wic cp %s:1 %s" % (out[0], tmpdir)
> +                runCmd(cmd)
> +                # check if the kernel is installed or not
> +                kimgtype = get_bb_var('KERNEL_IMAGETYPE', img)
> +                for file in os.listdir(tmpdir):
> +                    if file == kimgtype:
> +                        raise AssertionError(
> +                            "The kernel image '{}' was found in the partition".format(kimgtype)
> +                        )
> +
> +    def test_kernel_install(self):
> +        """Test the installation of the kernel to the boot directory in the wic plugin"""
> +        # Build the mtools package to support FAT filesystem handling
> +        bitbake("mtools")

Probably 'bitbake("mtools-native")'

> +        # create a temporary file for the WKS content
> +        with NamedTemporaryFile("w", suffix=".wks") as wks:
> +            wks.write(
> +                'part --source bootimg-efi '
> +                '--sourceparams="loader=grub-efi,install-kernel-into-boot-dir=true" '
> +                '--label boot --active\n'
> +            )
> +            wks.flush()
> +            # create a temporary directory to extract the disk image to
> +            with TemporaryDirectory() as tmpdir:
> +                img = 'core-image-minimal'
> +                # build the image using the WKS file
> +                cmd = "wic create %s -e %s -o %s" % (wks.name, img, self.resultdir)
> +                runCmd(cmd)
> +                wksname = os.path.splitext(os.path.basename(wks.name))[0]
> +                out = glob(os.path.join(self.resultdir, "%s-*.direct" % wksname))
> +                self.assertEqual(1, len(out))
> +                # extract the content of the disk image to the temporary directory
> +                cmd = "wic cp %s:1 %s" % (out[0], tmpdir)
> +                runCmd(cmd)
> +                # check if the kernel is installed or not
> +                kimgtype = get_bb_var('KERNEL_IMAGETYPE', img)
> +                found = False
> +                for file in os.listdir(tmpdir):
> +                    if file == kimgtype:
> +                        found = True
> +                        break
> +                self.assertTrue(
> +                    found, "The kernel image '{}' was not found in the boot partition".format(kimgtype)
> +                )
> +
>       def test_build_image_name(self):
>           """Test wic create wictestdisk --image-name=core-image-minimal"""
>           cmd = "wic create wictestdisk --image-name=core-image-minimal -o %s" % self.resultdir

Regards,
Christian