diff mbox series

[v3,3/3] qemu-iotests: 300: Add test case for modifying persistence of bitmap

Message ID d9c8e9827e9b6001b2dd1b92e64aab858e6d2a86.1613150869.git.pkrempa@redhat.com (mailing list archive)
State New, archived
Headers show
Series migration: dirty-bitmap: Allow control of bitmap persistence | expand

Commit Message

Peter Krempa Feb. 12, 2021, 5:34 p.m. UTC
Verify that the modification of the bitmap persistence over migration
which is controlled via BitmapMigrationBitmapAliasTransform works
properly.

Based on TestCrossAliasMigration

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
---
 tests/qemu-iotests/300     | 91 ++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/300.out |  4 +-
 2 files changed, 93 insertions(+), 2 deletions(-)

v3: new in series

Comments

Eric Blake Feb. 12, 2021, 7:15 p.m. UTC | #1
On 2/12/21 11:34 AM, Peter Krempa wrote:
> Verify that the modification of the bitmap persistence over migration
> which is controlled via BitmapMigrationBitmapAliasTransform works
> properly.
> 
> Based on TestCrossAliasMigration
> 
> Signed-off-by: Peter Krempa <pkrempa@redhat.com>
> ---
>  tests/qemu-iotests/300     | 91 ++++++++++++++++++++++++++++++++++++++
>  tests/qemu-iotests/300.out |  4 +-
>  2 files changed, 93 insertions(+), 2 deletions(-)
> 

> +    def setUp(self) -> None:
> +        TestDirtyBitmapMigration.setUp(self)
> +
> +        # Now create another block device and let both have two bitmaps each
> +        result = self.vm_a.qmp('blockdev-add',
> +                               node_name='node-b', driver='null-co')
> +        self.assert_qmp(result, 'return', {})
> +
> +        result = self.vm_b.qmp('blockdev-add',
> +                               node_name='node-a', driver='null-co')

The use of null-co with no mention of the read-zeroes option here is a
(minor) semantic conflict with the proposal by Philippe to flip the
default of that option (minor, because all it impacts would be the
execution speed of the test)
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg04027.html

Not your fault, so I don't mind touching up your additions in the same
manner Philippe proposed (which is safe regardless of whose patch lands
first).

diff --git i/tests/qemu-iotests/300 w/tests/qemu-iotests/300
index 9d4ec6a38195..63036f6a6e13 100755
--- i/tests/qemu-iotests/300
+++ w/tests/qemu-iotests/300
@@ -615,11 +615,13 @@ class
TestAliasTransformMigration(TestDirtyBitmapMigration):

         # Now create another block device and let both have two bitmaps
each
         result = self.vm_a.qmp('blockdev-add',
-                               node_name='node-b', driver='null-co')
+                               node_name='node-b', driver='null-co',
+                               read_zeroes=False)
         self.assert_qmp(result, 'return', {})

         result = self.vm_b.qmp('blockdev-add',
-                               node_name='node-a', driver='null-co')
+                               node_name='node-a', driver='null-co',
+                               read_zeroes=False)
         self.assert_qmp(result, 'return', {})

         bmaps_to_add = (('node-a', 'bmap-b'),
diff mbox series

Patch

diff --git a/tests/qemu-iotests/300 b/tests/qemu-iotests/300
index 43264d883d..9d4ec6a381 100755
--- a/tests/qemu-iotests/300
+++ b/tests/qemu-iotests/300
@@ -600,6 +600,97 @@  class TestCrossAliasMigration(TestDirtyBitmapMigration):
         self.verify_dest_has_all_bitmaps()
         self.verify_dest_error(None)

+class TestAliasTransformMigration(TestDirtyBitmapMigration):
+    """
+    Tests the 'transform' option which modifies bitmap persistence on migration.
+    """
+
+    src_node_name = 'node-a'
+    dst_node_name = 'node-b'
+    src_bmap_name = 'bmap-a'
+    dst_bmap_name = 'bmap-b'
+
+    def setUp(self) -> None:
+        TestDirtyBitmapMigration.setUp(self)
+
+        # Now create another block device and let both have two bitmaps each
+        result = self.vm_a.qmp('blockdev-add',
+                               node_name='node-b', driver='null-co')
+        self.assert_qmp(result, 'return', {})
+
+        result = self.vm_b.qmp('blockdev-add',
+                               node_name='node-a', driver='null-co')
+        self.assert_qmp(result, 'return', {})
+
+        bmaps_to_add = (('node-a', 'bmap-b'),
+                        ('node-b', 'bmap-a'),
+                        ('node-b', 'bmap-b'))
+
+        for (node, bmap) in bmaps_to_add:
+            result = self.vm_a.qmp('block-dirty-bitmap-add',
+                                   node=node, name=bmap)
+            self.assert_qmp(result, 'return', {})
+
+    @staticmethod
+    def transform_mapping() -> BlockBitmapMapping:
+        return [
+            {
+                'node-name': 'node-a',
+                'alias': 'node-a',
+                'bitmaps': [
+                    {
+                        'name': 'bmap-a',
+                        'alias': 'bmap-a',
+                        'transform':
+                            {
+                                'persistent': True
+                            }
+                    },
+                    {
+                        'name': 'bmap-b',
+                        'alias': 'bmap-b'
+                    }
+                ]
+            },
+            {
+                'node-name': 'node-b',
+                'alias': 'node-b',
+                'bitmaps': [
+                    {
+                        'name': 'bmap-a',
+                        'alias': 'bmap-a'
+                    },
+                    {
+                        'name': 'bmap-b',
+                        'alias': 'bmap-b'
+                    }
+                ]
+            }
+        ]
+
+    def verify_dest_bitmap_state(self) -> None:
+        bitmaps = self.vm_b.query_bitmaps()
+
+        for node in bitmaps:
+            bitmaps[node] = sorted(((bmap['name'], bmap['persistent']) for bmap in bitmaps[node]))
+
+        self.assertEqual(bitmaps,
+                         {'node-a': [('bmap-a', True), ('bmap-b', False)],
+                          'node-b': [('bmap-a', False), ('bmap-b', False)]})
+
+    def test_transform_on_src(self) -> None:
+        self.set_mapping(self.vm_a, self.transform_mapping())
+
+        self.migrate()
+        self.verify_dest_bitmap_state()
+        self.verify_dest_error(None)
+
+    def test_transform_on_dst(self) -> None:
+        self.set_mapping(self.vm_b, self.transform_mapping())
+
+        self.migrate()
+        self.verify_dest_bitmap_state()
+        self.verify_dest_error(None)

 if __name__ == '__main__':
     iotests.main(supported_protocols=['file'])
diff --git a/tests/qemu-iotests/300.out b/tests/qemu-iotests/300.out
index cafb8161f7..12e9ab7d57 100644
--- a/tests/qemu-iotests/300.out
+++ b/tests/qemu-iotests/300.out
@@ -1,5 +1,5 @@ 
-.....................................
+.......................................
 ----------------------------------------------------------------------
-Ran 37 tests
+Ran 39 tests

 OK