test: print error in case root partition count mismatch

The dmsquash test case can fail by not creating an overlay partition. In
this case the test fails with exit code 1 without printing an error.
This is hard to debug.

So print an error message in case the root partition count mismatches.

diff --git a/test/TEST-30-DMSQUASH/test.sh b/test/TEST-30-DMSQUASH/test.sh
index 02c9f0bdc8530fb56ca0f1c85dfe81b250c1c539..5da1d8238d9f79ab054f648141152dbca0f6c452 100755 (executable)
--- a/test/TEST-30-DMSQUASH/test.sh
+++ b/test/TEST-30-DMSQUASH/test.sh
@@ -43,7 +43,10 @@ client_run() {
 check_autooverlay_marker() {
     local rootPartitions part2_info part2_start part2_size
     rootPartitions=$(sfdisk -d "$TESTDIR"/root.img | grep -c 'root\.img[0-9]')
-    [ "$rootPartitions" -eq 2 ]
+    if [ "$rootPartitions" -ne 2 ]; then
+        echo >&2 "E: Expected two partitions on root.img, but got $rootPartitions."
+        return 1
+    fi
     part2_info=$(sfdisk -d "$TESTDIR"/root.img | grep 'root\.img2')
     part2_start=$(echo "$part2_info" | sed -n 's/.*start= *\([0-9]*\).*/\1/p')
     part2_size=$(echo "$part2_info" | sed -n 's/.*size= *\([0-9]*\).*/\1/p')