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From 59a754b5c95a4795178d2a117abb7f7145c830a4 Mon Sep 17 00:00:00 2001
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Message-Id: <59a754b5c95a4795178d2a117abb7f7145c830a4@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 23 Jun 2020 12:24:02 +0200
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Subject: [PATCH] qemublocktest: Add 'snapshots' tests for block commit bitmap
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 handling
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Simulate commit between all the combinations of layers in the
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'snapshots' case to see whether the code merges the correct bitmaps with
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the correct depth of temporary bitmaps.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit b5eaabfbf892c8d4a30b2822325959a6ecb93cb6)
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https://bugzilla.redhat.com/show_bug.cgi?id=1804593
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Message-Id: <e2a3ce231bab06d274039daf7cdebd086b2a5691.1592906423.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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 tests/qemublocktest.c                         |  14 ++
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 .../bitmapblockcommit/snapshots-1-2           | 105 +++++++++++
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 .../bitmapblockcommit/snapshots-1-3           | 131 ++++++++++++++
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 .../bitmapblockcommit/snapshots-1-4           | 163 +++++++++++++++++
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 .../bitmapblockcommit/snapshots-1-5           | 167 ++++++++++++++++++
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 .../bitmapblockcommit/snapshots-2-3           |  65 +++++++
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 .../bitmapblockcommit/snapshots-2-4           |  97 ++++++++++
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 .../bitmapblockcommit/snapshots-2-5           | 101 +++++++++++
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 .../bitmapblockcommit/snapshots-3-4           |  62 +++++++
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 .../bitmapblockcommit/snapshots-3-5           |  66 +++++++
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 .../bitmapblockcommit/snapshots-4-5           |  16 ++
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 11 files changed, 987 insertions(+)
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
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 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
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diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
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index 43abc49534..e1468f13fa 100644
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--- a/tests/qemublocktest.c
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+++ b/tests/qemublocktest.c
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@@ -1361,6 +1361,20 @@ mymain(void)
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     TEST_BITMAP_BLOCKCOMMIT("basic-1-3", 1, 3, "basic");
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     TEST_BITMAP_BLOCKCOMMIT("basic-2-3", 2, 3, "basic");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-2", 1, 2, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-3", 1, 3, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-4", 1, 4, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-5", 1, 5, "snapshots");
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+
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-3", 2, 3, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-4", 2, 4, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-5", 2, 5, "snapshots");
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+
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-3-4", 3, 4, "snapshots");
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-3-5", 3, 5, "snapshots");
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+
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+    TEST_BITMAP_BLOCKCOMMIT("snapshots-4-5", 4, 5, "snapshots");
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+
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  cleanup:
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     qemuTestDriverFree(&driver);
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     VIR_FREE(capslatest_x86_64);
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diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
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new file mode 100644
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index 0000000000..7d5b0a4402
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--- /dev/null
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+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
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@@ -0,0 +1,105 @@
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+merge bitmpas:
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+[
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+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "name": "current",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "target": "current",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "current"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "target": "c",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "target": "b",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "b"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "target": "a",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "a"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "target": "d",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "d"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-remove",
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+    "data": {
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+      "node": "libvirt-2-format",
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+      "name": "libvirt-tmp-activewrite"
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+    }
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+  }
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+]
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diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
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new file mode 100644
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index 0000000000..17a020ba20
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--- /dev/null
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+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
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@@ -0,0 +1,131 @@
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+merge bitmpas:
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+[
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+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "name": "current",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "target": "current",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "current"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "target": "c",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "target": "b",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "b"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "b"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "target": "a",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "a"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "a"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "name": "d",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "target": "d",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "d"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "d"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-remove",
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+    "data": {
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+      "node": "libvirt-3-format",
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+      "name": "libvirt-tmp-activewrite"
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+    }
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+  }
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+]
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diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
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new file mode 100644
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index 0000000000..972d30b2e1
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--- /dev/null
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+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
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@@ -0,0 +1,163 @@
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+merge bitmpas:
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+[
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+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "name": "current",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "target": "current",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "current"
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+        },
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+        {
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+          "node": "libvirt-4-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "name": "c",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
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+  },
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+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "target": "c",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-3-format",
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+          "name": "c"
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+        },
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+        {
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+          "node": "libvirt-4-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
a41c76
+    }
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+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "name": "b",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
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+    }
a41c76
+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-4-format",
a41c76
+      "target": "b",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
a41c76
+          "name": "b"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "b"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "b"
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+        },
a41c76
+        {
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+          "node": "libvirt-4-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-4-format",
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+      "target": "a",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
a41c76
+          "name": "a"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "a"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
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+        },
a41c76
+        {
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+          "node": "libvirt-4-format",
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+          "name": "libvirt-tmp-activewrite"
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+        }
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+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "name": "d",
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+      "persistent": true,
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+      "disabled": false,
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+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-4-format",
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+      "target": "d",
a41c76
+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-1-format",
a41c76
+          "name": "d"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "d"
a41c76
+        },
a41c76
+        {
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+          "node": "libvirt-4-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-remove",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "libvirt-tmp-activewrite"
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
a41c76
new file mode 100644
a41c76
index 0000000000..3cda5b4132
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
a41c76
@@ -0,0 +1,167 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "current",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "current",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-1-format",
a41c76
+          "name": "current"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-5-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "name": "c",
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+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-1-format",
a41c76
+          "name": "c"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "c"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "c"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-5-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
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+        }
a41c76
+      ]
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+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
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+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "name": "b",
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+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "b",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-1-format",
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+          "name": "b"
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+        },
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+        {
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+          "node": "libvirt-2-format",
a41c76
+          "name": "b"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
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+          "name": "b"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-5-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "a",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-1-format",
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+          "name": "a"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "a"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-4-format",
a41c76
+          "name": "a"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-5-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "d",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "d",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-1-format",
a41c76
+          "name": "d"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "d"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-5-format",
a41c76
+          "name": "libvirt-tmp-activewrite"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-remove",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "libvirt-tmp-activewrite"
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
a41c76
new file mode 100644
a41c76
index 0000000000..cb952eeb06
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
a41c76
@@ -0,0 +1,65 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-3-format",
a41c76
+      "name": "d",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-3-format",
a41c76
+      "target": "d",
a41c76
+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "d"
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+        }
a41c76
+      ]
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+    }
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+  },
a41c76
+  {
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+    "type": "block-dirty-bitmap-merge",
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+    "data": {
a41c76
+      "node": "libvirt-3-format",
a41c76
+      "target": "a",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-2-format",
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+          "name": "a"
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+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-3-format",
a41c76
+      "target": "b",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "b"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-3-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "c"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
a41c76
new file mode 100644
a41c76
index 0000000000..a540ca42e3
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
a41c76
@@ -0,0 +1,97 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "d",
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+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-4-format",
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+      "target": "d",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "d"
a41c76
+        }
a41c76
+      ]
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+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-4-format",
a41c76
+      "target": "a",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "a"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
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+        }
a41c76
+      ]
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+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "b",
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+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-4-format",
a41c76
+      "target": "b",
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+      "bitmaps": [
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+        {
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+          "node": "libvirt-2-format",
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+          "name": "b"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "b"
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+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "c",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "c"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "c"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
a41c76
new file mode 100644
a41c76
index 0000000000..8ea6036a33
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
a41c76
@@ -0,0 +1,101 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "d",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "d",
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+      "bitmaps": [
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+        {
a41c76
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+          "name": "d"
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+        }
a41c76
+      ]
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+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
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+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "a",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "a"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-4-format",
a41c76
+          "name": "a"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "b",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "target": "b",
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+      "bitmaps": [
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+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "b"
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+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "b"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "c",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-2-format",
a41c76
+          "name": "c"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "c"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
a41c76
new file mode 100644
a41c76
index 0000000000..736d4fd9df
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
a41c76
@@ -0,0 +1,62 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "c",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "c"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "name": "b",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "target": "b",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "b"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-4-format",
a41c76
+      "target": "a",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
a41c76
new file mode 100644
a41c76
index 0000000000..207d82e6b6
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
a41c76
@@ -0,0 +1,66 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
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+      "node": "libvirt-5-format",
a41c76
+      "name": "c",
a41c76
+      "persistent": true,
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+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "c",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "c"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-add",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "name": "b",
a41c76
+      "persistent": true,
a41c76
+      "disabled": false,
a41c76
+      "granularity": 65536
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "b",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "b"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  },
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "a",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-3-format",
a41c76
+          "name": "a"
a41c76
+        },
a41c76
+        {
a41c76
+          "node": "libvirt-4-format",
a41c76
+          "name": "a"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
a41c76
new file mode 100644
a41c76
index 0000000000..4a8e6c5cff
a41c76
--- /dev/null
a41c76
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
a41c76
@@ -0,0 +1,16 @@
a41c76
+merge bitmpas:
a41c76
+[
a41c76
+  {
a41c76
+    "type": "block-dirty-bitmap-merge",
a41c76
+    "data": {
a41c76
+      "node": "libvirt-5-format",
a41c76
+      "target": "a",
a41c76
+      "bitmaps": [
a41c76
+        {
a41c76
+          "node": "libvirt-4-format",
a41c76
+          "name": "a"
a41c76
+        }
a41c76
+      ]
a41c76
+    }
a41c76
+  }
a41c76
+]
a41c76
-- 
a41c76
2.27.0
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