iotests: Make 157 actually format-agnostic

iotest 157 pretends not to care about the image format used, but in fact
it does due to the format name not being filtered in its output. This
patch adds filtering and changes the reference output accordingly.
Signed-off-by: NMax Reitz <mreitz@redhat.com>
Message-id: 20160711132246.3152-1-mreitz@redhat.com
Reviewed-by: NJohn Snow <jsnow@redhat.com>
Signed-off-by: NMax Reitz <mreitz@redhat.com>

tests/qemu-iotests/157

@@ -57,7 +57,8 @@ function do_run_qemu()
 
 function run_qemu()
 {
-    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_generated_node_ids
+    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_imgfmt \
+                          | _filter_qemu | _filter_generated_node_ids
 }
 
 

tests/qemu-iotests/157.out

@@ -3,20 +3,20 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
 
 === Setting WCE with qdev and with manually created BB ===
 
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writeback -device virtio-blk,drive=none0
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writeback -device virtio-blk,drive=none0
     Cache mode:       writeback
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writeback -device virtio-blk,drive=none0,write-cache=auto
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writeback -device virtio-blk,drive=none0,write-cache=auto
     Cache mode:       writeback
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writeback -device virtio-blk,drive=none0,write-cache=on
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writeback -device virtio-blk,drive=none0,write-cache=on
     Cache mode:       writeback
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writeback -device virtio-blk,drive=none0,write-cache=off
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writeback -device virtio-blk,drive=none0,write-cache=off
     Cache mode:       writethrough
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writethrough -device virtio-blk,drive=none0
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writethrough -device virtio-blk,drive=none0
     Cache mode:       writethrough
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writethrough -device virtio-blk,drive=none0,write-cache=auto
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writethrough -device virtio-blk,drive=none0,write-cache=auto
     Cache mode:       writethrough
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writethrough -device virtio-blk,drive=none0,write-cache=on
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writethrough -device virtio-blk,drive=none0,write-cache=on
     Cache mode:       writeback
-Testing: -drive if=none,file=TEST_DIR/t.qcow2,driver=qcow2,cache=writethrough -device virtio-blk,drive=none0,write-cache=off
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,driver=IMGFMT,cache=writethrough -device virtio-blk,drive=none0,write-cache=off
     Cache mode:       writethrough
 *** done