[PATCH v5 3/3] oe-selftest: add wic.Wic.test_grub_install_pcbios

[Vincent Davis Jr <vince@underview.tech>]

wic.Wic.test_grub_install_pcbios test

Test updates to the bootimg_pcbios plugin that
enables support for installing grub directly
to the resulting wic image.

The test checks to see if the wics plugin
generates a wic image. Then see's if normal.mod
and grub.cfg are located in the boot partition.

Signed-off-by: Vincent Davis Jr <vince@underview.tech>
---
 meta/lib/oeqa/selftest/cases/wic.py | 41 +++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
index 680f99d381..44442e402d 100644
--- a/meta/lib/oeqa/selftest/cases/wic.py
+++ b/meta/lib/oeqa/selftest/cases/wic.py
@@ -215,6 +215,47 @@ class Wic(WicTestCase):
                     found, "The kernel image '{}' was not found in the boot partition".format(kimgtype)
                 )
 
+    @skipIfNotArch(['x86_64'])
+    def test_grub_install_pcbios(self):
+        """
+        Test the installation of the grub modules + config
+        into the boot directory in the resulting wic image.
+        """
+
+        # create a temporary file for the WKS content
+        with NamedTemporaryFile("w", suffix=".wks") as wks:
+            wks.write(
+                'part --source bootimg_pcbios --sourceparams="loader-bios=grub" '
+                '--offset 1024 --fixed-size 78M --label boot --active\n'
+                'bootloader --ptable msdos --source bootimg_pcbios\n'
+            )
+            wks.flush()
+            # create a temporary directory to extract the disk image to
+            with TemporaryDirectory() as tmpdir:
+                img = "core-image-minimal"
+                config = 'DEPENDS:pn-%s += "grub-native grub"' % (img)
+
+                self.append_config(config)
+                bitbake(img)
+                self.remove_config(config)
+
+                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))
+
+                sysroot = get_bb_var('RECIPE_SYSROOT_NATIVE', 'wic-tools')
+
+                # Check if grub.cfg is installed
+                result = runCmd("wic ls %s:1/boot/grub -n %s" % (out[0], sysroot))
+                self.assertIn('grub', result.output)
+
+                # Check if normal.mod is installed
+                result = runCmd("wic ls %s:1/boot/grub/i386-pc -n %s" % (out[0], sysroot))
+                self.assertIn('normal', result.output)
+
     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
-- 
2.43.0