diff options
Diffstat (limited to 'tests')
| -rwxr-xr-x | tests/qemu-iotests/245 | 47 | ||||
| -rw-r--r-- | tests/qemu-iotests/245.out | 4 |
2 files changed, 49 insertions, 2 deletions
diff --git a/tests/qemu-iotests/245 b/tests/qemu-iotests/245 index ca08955..8bc8101 100755 --- a/tests/qemu-iotests/245 +++ b/tests/qemu-iotests/245 @@ -649,6 +649,53 @@ class TestBlockdevReopen(iotests.QMPTestCase): '-c', 'read -P 0x40 0x40008 1', '-c', 'read -P 0x80 0x40010 1', hd_path[0]) + # Swap the disk images of two active block devices + def test_swap_files(self): + # Add hd0 and hd2 (none of them with backing files) + opts0 = hd_opts(0) + result = self.vm.qmp('blockdev-add', conv_keys = False, **opts0) + self.assert_qmp(result, 'return', {}) + + opts2 = hd_opts(2) + result = self.vm.qmp('blockdev-add', conv_keys = False, **opts2) + self.assert_qmp(result, 'return', {}) + + # Write different data to both block devices + self.run_qemu_io("hd0", "write -P 0xa0 0 1k") + self.run_qemu_io("hd2", "write -P 0xa2 0 1k") + + # Check that the data reads correctly + self.run_qemu_io("hd0", "read -P 0xa0 0 1k") + self.run_qemu_io("hd2", "read -P 0xa2 0 1k") + + # It's not possible to make a block device use an image that + # is already being used by the other device. + self.reopen(opts0, {'file': 'hd2-file'}, + "Permission conflict on node 'hd2-file': permissions " + "'write, resize' are both required by node 'hd2' (uses " + "node 'hd2-file' as 'file' child) and unshared by node " + "'hd0' (uses node 'hd2-file' as 'file' child).") + self.reopen(opts2, {'file': 'hd0-file'}, + "Permission conflict on node 'hd0-file': permissions " + "'write, resize' are both required by node 'hd0' (uses " + "node 'hd0-file' as 'file' child) and unshared by node " + "'hd2' (uses node 'hd0-file' as 'file' child).") + + # But we can swap the images if we reopen both devices at the + # same time + opts0['file'] = 'hd2-file' + opts2['file'] = 'hd0-file' + self.reopenMultiple([opts0, opts2]) + self.run_qemu_io("hd0", "read -P 0xa2 0 1k") + self.run_qemu_io("hd2", "read -P 0xa0 0 1k") + + # And we can of course come back to the original state + opts0['file'] = 'hd0-file' + opts2['file'] = 'hd2-file' + self.reopenMultiple([opts0, opts2]) + self.run_qemu_io("hd0", "read -P 0xa0 0 1k") + self.run_qemu_io("hd2", "read -P 0xa2 0 1k") + # Misc reopen tests with different block drivers @iotests.skip_if_unsupported(['quorum', 'throttle']) def test_misc_drivers(self): diff --git a/tests/qemu-iotests/245.out b/tests/qemu-iotests/245.out index daf1e51..4eced19 100644 --- a/tests/qemu-iotests/245.out +++ b/tests/qemu-iotests/245.out @@ -17,8 +17,8 @@ read 1/1 bytes at offset 262152 read 1/1 bytes at offset 262160 1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) -.............. +............... ---------------------------------------------------------------------- -Ran 24 tests +Ran 25 tests OK |