iotests: Test copy offloading with external data file

This adds a test for 'qemu-img convert' with copy offloading where the
target image has an external data file. If the test hosts supports it,
it tests both the case where copy offloading is supported and the case
where it isn't (otherwise we just test unsupported twice).

More specifically, the case with unsupported copy offloading tests
qcow2_alloc_cluster_abort() with external data files.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200211094900.17315-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/tests/qemu-iotests/244 b/tests/qemu-iotests/244
index 0d1efee6ef166896873a69722de74234da18d4ab..2ec1815e6fe7bac7120ec3ad8c8fc658a839d68c 100755 (executable)
--- a/tests/qemu-iotests/244
+++ b/tests/qemu-iotests/244
@@ -197,6 +197,20 @@ $QEMU_IO -c 'read -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
 $QEMU_IMG map --output=human "$TEST_IMG" | _filter_testdir
 $QEMU_IMG map --output=json "$TEST_IMG"
 
+echo
+echo "=== Copy offloading ==="
+echo
+
+# Make use of copy offloading if the test host can provide it
+_make_test_img -o "data_file=$TEST_IMG.data" 64M
+$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n -C "$TEST_IMG.src" "$TEST_IMG"
+$QEMU_IMG compare -f $IMGFMT -F $IMGFMT "$TEST_IMG.src" "$TEST_IMG"
+
+# blkdebug doesn't support copy offloading, so this tests the error path
+$QEMU_IMG amend -f $IMGFMT -o "data_file=blkdebug::$TEST_IMG.data" "$TEST_IMG"
+$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n -C "$TEST_IMG.src" "$TEST_IMG"
+$QEMU_IMG compare -f $IMGFMT -F $IMGFMT "$TEST_IMG.src" "$TEST_IMG"
+
 # success, all done
 echo "*** done"
 rm -f $seq.full

diff --git a/tests/qemu-iotests/244.out b/tests/qemu-iotests/244.out
index 6a3d0067ccc04e22e72da029d2f26da484f8ad5d..e6f4dc79934bfbbc68ee523f38b7ca723fb7f33c 100644 (file)
--- a/tests/qemu-iotests/244.out
+++ b/tests/qemu-iotests/244.out
@@ -122,4 +122,10 @@ Offset          Length          Mapped to       File
 0               0x100000        0               TEST_DIR/t.qcow2.data
 [{ "start": 0, "length": 1048576, "depth": 0, "zero": false, "data": true, "offset": 0},
 { "start": 1048576, "length": 66060288, "depth": 0, "zero": true, "data": false}]
+
+=== Copy offloading ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data
+Images are identical.
+Images are identical.
 *** done