rootfs: overlays: blktests: add blktests script

Add blktests test script.

Signed-off-by: Vignesh Raman <[email protected]>

Author: vigneshraman

config/core/rootfs-configs.yaml

@@ -86,6 +86,7 @@ rootfs_configs:
       - misc_packages
       - package_management
       - misc_directories
+    test_overlay: "overlays/blktests"
 
 
   bookworm-cros-ec:

config/rootfs/debos/overlays/blktests/usr/bin/run-blktests.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -euo pipefail
+set -x
+
+TEST_GROUP="${1:-}"
+TEST_DEV="${2:-}"
+
+if [ -z "$TEST_GROUP" ] || [ -z "$TEST_DEV" ]; then
+    echo "Usage: $0 <TEST_GROUP> <TEST_DEV|loop>"
+    exit 1
+fi
+
+LOOPBACK_REQUIRED=false
+LOOPDEV=""
+LOOPFILE=""
+
+if [ "$TEST_DEV" = "loop" ]; then
+    LOOPBACK_REQUIRED=true
+fi
+
+cleanup() {
+    if [ "$LOOPBACK_REQUIRED" = true ] && [ -n "${LOOPDEV:-}" ]; then
+        losetup -d "$LOOPDEV" || true
+    fi
+    [ -n "${LOOPFILE:-}" ] && rm -f "$LOOPFILE"
+}
+trap cleanup EXIT
+
+if [ "$LOOPBACK_REQUIRED" = true ]; then
+    LOOPFILE=$(mktemp /tmp/loopdisk.XXXX.img)
+    truncate -s 1G "$LOOPFILE"
+    LOOPDEV=$(losetup -f --show "$LOOPFILE")
+    echo "Created loop device: $LOOPDEV"
+
+    mkfs.ext4 -F "$LOOPDEV" > /dev/null
+    TEST_DEV="$LOOPDEV"
+fi
+
+mkdir -p /tmp/blktests-results
+cd /usr/local/blktests/
+echo "TEST_DEVS=('$TEST_DEV')" > config
+./check -c config "$TEST_GROUP" --output /tmp/blktests-results