[PULL,08/15] tests/qemu-iotests: introduce filter for qemu-nbd export list

Commit Message

Eric Blake March 8, 2022, 1:44 a.m. UTC

From: Daniel P. Berrangé <[e-mail]>

Introduce a filter for the output of qemu-nbd export list so it can be
reused in multiple tests.

The filter is a bit more permissive that what test 241 currently uses,
as its allows printing of the export count, along with any possible
error messages that might be emitted.

Reviewed-by: Eric Blake <[e-mail]>
Signed-off-by: Daniel P. Berrangé <[e-mail]>
Message-Id: <[e-mail]>
Tested-by: Eric Blake <[e-mail]>
Signed-off-by: Eric Blake <[e-mail]>
---
 tests/qemu-iotests/common.filter | 5 +++++
 tests/qemu-iotests/241           | 6 +++---
 tests/qemu-iotests/241.out       | 6 ++++++
 3 files changed, 14 insertions(+), 3 deletions(-)

Patch

diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter
index f53d8cbb9daa..9790411bf0e4 100644
--- a/tests/qemu-iotests/common.filter
+++ b/tests/qemu-iotests/common.filter
@@ -309,6 +309,11 @@  _filter_nbd()
         -e 's#\(foo\|PORT/\?\|.sock\): Failed to .*$#\1#'
 }

+_filter_qemu_nbd_exports()
+{
+    grep '\(exports available\|export\|size\|min block\|qemu-nbd\):'
+}
+
 _filter_qmp_empty_return()
 {
     grep -v '{"return": {}}'
diff --git a/tests/qemu-iotests/241 b/tests/qemu-iotests/241
index c962c8b6075d..f196650afad0 100755
--- a/tests/qemu-iotests/241
+++ b/tests/qemu-iotests/241
@@ -58,7 +58,7 @@  echo

 nbd_server_start_unix_socket -f $IMGFMT "$TEST_IMG_FILE"

-$QEMU_NBD_PROG --list -k $nbd_unix_socket | grep '\(size\|min\)'
+$QEMU_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
 $QEMU_IMG map -f raw --output=json "$TEST_IMG" | _filter_qemu_img_map
 $QEMU_IO -f raw -c map "$TEST_IMG"
 nbd_server_stop
@@ -71,7 +71,7 @@  echo
 # sector alignment, here at the server.
 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_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
 $QEMU_IMG map -f raw --output=json "$TEST_IMG" | _filter_qemu_img_map
 $QEMU_IO -f raw -c map "$TEST_IMG"
 nbd_server_stop
@@ -84,7 +84,7 @@  echo
 # Now force sector alignment at the client.
 nbd_server_start_unix_socket -f $IMGFMT "$TEST_IMG_FILE"

-$QEMU_NBD_PROG --list -k $nbd_unix_socket | grep '\(size\|min\)'
+$QEMU_NBD_PROG --list -k $nbd_unix_socket | _filter_qemu_nbd_exports
 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 $QEMU_IO -c map "$TEST_IMG"
 nbd_server_stop
diff --git a/tests/qemu-iotests/241.out b/tests/qemu-iotests/241.out
index 56e95b599a3d..88e8cfcd7e25 100644
--- a/tests/qemu-iotests/241.out
+++ b/tests/qemu-iotests/241.out
@@ -2,6 +2,8 @@  QA output created by 241

 === Exporting unaligned raw image, natural alignment ===

+exports available: 1
+ export: ''
   size:  1024
   min block: 1
 [{ "start": 0, "length": 1000, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
@@ -10,6 +12,8 @@  QA output created by 241

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

+exports available: 1
+ export: ''
   size:  1024
   min block: 512
 [{ "start": 0, "length": 1024, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET}]
@@ -20,6 +24,8 @@  WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed

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

+exports available: 1
+ export: ''
   size:  1024
   min block: 1
 [{ "start": 0, "length": 1000, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},