[Qemu-devel] [PATCH for-4.0?] iotest: Fix 241 to run in generic directory

[Eric Blake <eblake@redhat.com>]

Filter the qemu-nbd server output to get rid of a direct reference
to my build directory.

Fixes: e9dce9cb
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
---

Not worth -rc4 on its own, but if something else pops up that requires
another spin, I plan on a pull request for this one. Otherwise it
slips to 4.1, and 4.0 just has a broken iotest.

 tests/qemu-iotests/241     | 4 +++-
 tests/qemu-iotests/241.out | 6 +++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tests/qemu-iotests/241 b/tests/qemu-iotests/241
index 4b196857387..017a736aaba 100755
--- a/tests/qemu-iotests/241
+++ b/tests/qemu-iotests/241
@@ -28,6 +28,7 @@ nbd_unix_socket=$TEST_DIR/test_qemu_nbd_socket
 _cleanup()
 {
     _cleanup_test_img
+    rm -f "$TEST_DIR/server.log"
     nbd_server_stop
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15
@@ -69,12 +70,13 @@ echo

 # Intentionally omit '-f' to force image probing, which in turn forces
 # sector alignment, here at the server.
-nbd_server_start_unix_socket "$TEST_IMG_FILE"
+nbd_server_start_unix_socket "$TEST_IMG_FILE" 2> "$TEST_DIR/server.log"

 $QEMU_NBD_PROG --list -k $nbd_unix_socket | grep '\(size\|min\)'
 $QEMU_IMG map -f raw --output=json "$TEST_IMG" | _filter_qemu_img_map
 $QEMU_IO -f raw -c map "$TEST_IMG"
 nbd_server_stop
+cat "$TEST_DIR/server.log" | _filter_testdir

 echo
 echo "=== Exporting unaligned raw image, forced client sector alignment ==="
diff --git a/tests/qemu-iotests/241.out b/tests/qemu-iotests/241.out
index f481074a02e..75f9f465e52 100644
--- a/tests/qemu-iotests/241.out
+++ b/tests/qemu-iotests/241.out
@@ -10,13 +10,13 @@ QA output created by 241

 === Exporting unaligned raw image, forced server sector alignment ===

-WARNING: Image format was not specified for '/home/eblake/qemu/tests/qemu-iotests/scratch/t.raw' and probing guessed raw.
-         Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
-         Specify the 'raw' format explicitly to remove the restrictions.
   size:  1024
   min block: 512
 [{ "start": 0, "length": 1024, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
 1 KiB (0x400) bytes     allocated at offset 0 bytes (0x0)
+WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed raw.
+         Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
+         Specify the 'raw' format explicitly to remove the restrictions.

 === Exporting unaligned raw image, forced client sector alignment ===

-- 
2.20.1