qemu-iotests: 060: Filter the real disk size

The real on-disk size of an image depends on things like the host
filesystem. _img_info already filters it out, use the function in 060.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>

tests/qemu-iotests/060

@@ -77,7 +77,7 @@ $QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io
 $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features
 
 # This information should be available through qemu-img info
-$QEMU_IMG info "$TEST_IMG" | _filter_testdir
+_img_info --format-specific
 
 # Try to open the image R/W (which should fail)
 $QEMU_IO -c "$OPEN_RW" -c "read 0 512" 2>&1 | _filter_qemu_io \

tests/qemu-iotests/060.out

@@ -11,10 +11,9 @@ incompatible_features     0x0
 qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with active L1 table); further corruption events will be suppressed
 write failed: Input/output error
 incompatible_features     0x2
-image: TEST_DIR/t.qcow2
-file format: qcow2
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
 virtual size: 64M (67108864 bytes)
-disk size: 196K
 cluster_size: 65536
 Format specific information:
     compat: 1.1

tests/qemu-iotests/common.rc

@@ -213,6 +213,13 @@ _check_test_img()
 
 _img_info()
 {
+    if [[ "$1" == "--format-specific" ]]; then
+        local format_specific=1
+        shift
+    else
+        local format_specific=0
+    fi
+
     discard=0
     regex_json_spec_start='^ *"format-specific": \{'
     $QEMU_IMG info "$@" "$TEST_IMG" 2>&1 | \
@@ -222,7 +229,9 @@ _img_info()
             -e "/^disk size:/ D" \
             -e "/actual-size/ D" | \
         while IFS='' read line; do
-            if [[ $line == "Format specific information:" ]]; then
+            if [[ $format_specific == 1 ]]; then
+                discard=0
+            elif [[ $line == "Format specific information:" ]]; then
                 discard=1
             elif [[ $line =~ $regex_json_spec_start ]]; then
                 discard=2