testing/mdadm: Add guess test

The test checks that guess only adds mdadm and does not add multipath,
luks, lvm. In the testcase the /sys/../dm/uuid is empty, which previously
broke the logic.

Signed-off-by: Alexey Gladkov <[email protected]>

features/mdadm/tests/ts0001-guess-ignore-multipath/expect

@@ -0,0 +1,30 @@
+mi-bug-report: WARNING: There are no modules in the directory: /lib/modules/6.6.41-un-def-alt0.p11.1/kernel
+RUN: guess/root/action
+TRACE function: source=features/mdadm/guess/device: main guess_variable: MDADM_EXTRA_PROGS mdmon
+TRACE function: source=features/mdadm/guess/device: main guess_modalias: md-raid0
+TRACE function: source=features/mdadm/guess/device: main guess_modalias: efivarfs
+TRACE function: source=features/mdadm/guess/device: main guess_feature: mdadm
+TRACE function: source=features/mdadm/guess/device: main guess_variable: GENERATE_UDEV_RULES_FOR_MD_DEVICE 9:126
+TRACE function: source=features/devmapper/guess/device: main guess_feature: devmapper
+TRACE function: source=features/rootfs/guess/fstype: main guess_modalias: fs-ext4
+RUN: guess-config
+GENERATE_UDEV_RULES_FOR_MD_DEVICE = \
+	9:126
+MDADM_EXTRA_PROGS = \
+	mdmon
+MOUNTPOINTS = \
+	/
+
+MODULES_ADD += \
+	efivarfs fs-ext4 md-raid0 \
+	pci:v00002646d00005017sv00002646sd00005017bc01sc08i02 \
+	pci:v00002646d0000501Dsv00002646sd0000501Dbc01sc08i02 \
+	pci:v00008086d0000464Dsv00000000sd00000000bc06sc04i00 \
+	pci:v00008086d0000467Fsv00008086sd00000000bc01sc04i00 \
+	pci:v00008086d00007AC4sv00000000sd00000000bc06sc04i00 \
+	pci:v00008086d00007AC8sv00000000sd00000000bc06sc04i00
+
+FEATURES += \
+	add-modules add-udev-rules devmapper mdadm rootfs
+
+rc=0

features/mdadm/tests/ts0001-guess-ignore-multipath/run

@@ -0,0 +1,21 @@
+#!/bin/bash -eu
+
+[ -z "${IGNORE_UNPRIV_USERNS_TESTS-}" ] ||
+	exit 127
+
+cwd="${0%/*}"
+
+export GUESS_SUFFIX=add:guess-root
+export TEST_GUESS_ACTIONS="guess/root/action guess-config"
+
+export RESOLVE_MODALIAS=
+export KERNEL_CONFIG=/dev/null
+
+export MAKE_INITRD_TRACE=1
+export MAKE_INITRD_TRACE_PIDS=
+export MAKE_INITRD_TRACE_EXECUTE_PATTERNS='guess/root/action'
+export MAKE_INITRD_TRACE_SRC_PATTERNS='features/*/guess/* features/rootfs/guess/fstype'
+export MAKE_INITRD_TRACE_RUN_PATTERNS='*'
+
+utils/mi-bug-report "$cwd/rootfs.tar.xz" -- \
+	.build/dest/usr/sbin/make-initrd --no-depmod  -k '6.6.41-un-def-alt0.p11.1' test-guess