Commit Graph

3 Commits

Author SHA1 Message Date
Peter Krempa
0b27b655b1 tests: qemublock: Add test case for detecting bitmaps as we create snapshots
Add test data gathered from a run of qemu after creating bitmaps and
snapshots together in various combinations.

The following sequence of commands was used to achieve the
configuration:

virsh checkpoint-create-as VM --name a
virsh snapshot-create-as VM --disk-only
virsh snapshot-create-as VM --disk-only
virsh checkpoint-create-as VM --name b
virsh checkpoint-create-as VM --name c
virsh snapshot-create-as VM --disk-only
virsh checkpoint-create-as VM --name d
virsh snapshot-create-as VM --disk-only
virsh checkpoint-create-as VM --name current

Note that VM was restarted after these operations to allow renumbering
of the bitmaps in a more human-readable way.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-12-13 13:22:55 +01:00
Peter Krempa
1326fd1ce6 tests: qemublocktest: Add a synthetic test case for bitmap detection
The real data gathered for the 'basic' test case don't exercise some
fields. Add a copy with a few values modified manually.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-12-13 13:22:55 +01:00
Peter Krempa
9aac9d5bda tests: qemublock: Add test for bitmap detection
Test the extraction of data about changed block tracking bitmaps. The
first test case adds a simple scenario of multiple bitmaps in one layer.

The test data will be also later reused for testing the code that
determines which bitmaps to merge for an incremental backup.

The sequence of bitmaps was created by the libvirt checkpoint API with
the following sequence of commands:

virsh checkpoint-create-as VM --name a
virsh checkpoint-create-as VM --name b
virsh checkpoint-create-as VM --name c
virsh checkpoint-create-as VM --name d
virsh checkpoint-create-as VM --name current

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-12-13 13:22:55 +01:00