[PATCH 28/32] qemublocktest: Add 'snapshots' tests for block commit bitmap handling

Peter Krempa pkrempa at redhat.com
Mon Jun 15 17:10:15 UTC 2020


Simulate commit between all the combinations of layers in the
'snapshots' case to see whether the code merges the correct bitmaps with
the correct depth of temporary bitmaps.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 tests/qemublocktest.c                         |  14 ++
 .../bitmapblockcommit/snapshots-1-2           | 105 +++++++++++
 .../bitmapblockcommit/snapshots-1-3           | 131 ++++++++++++++
 .../bitmapblockcommit/snapshots-1-4           | 163 +++++++++++++++++
 .../bitmapblockcommit/snapshots-1-5           | 167 ++++++++++++++++++
 .../bitmapblockcommit/snapshots-2-3           |  65 +++++++
 .../bitmapblockcommit/snapshots-2-4           |  97 ++++++++++
 .../bitmapblockcommit/snapshots-2-5           | 101 +++++++++++
 .../bitmapblockcommit/snapshots-3-4           |  62 +++++++
 .../bitmapblockcommit/snapshots-3-5           |  66 +++++++
 .../bitmapblockcommit/snapshots-4-5           |  16 ++
 11 files changed, 987 insertions(+)
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
 create mode 100644 tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5

diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
index 1a8ce3b73d..4a737e19d3 100644
--- a/tests/qemublocktest.c
+++ b/tests/qemublocktest.c
@@ -1362,6 +1362,20 @@ mymain(void)
     TEST_BITMAP_BLOCKCOMMIT("basic-1-3", 1, 3, "basic");
     TEST_BITMAP_BLOCKCOMMIT("basic-2-3", 2, 3, "basic");

+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-2", 1, 2, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-3", 1, 3, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-4", 1, 4, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-1-5", 1, 5, "snapshots");
+
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-3", 2, 3, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-4", 2, 4, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-2-5", 2, 5, "snapshots");
+
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-3-4", 3, 4, "snapshots");
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-3-5", 3, 5, "snapshots");
+
+    TEST_BITMAP_BLOCKCOMMIT("snapshots-4-5", 4, 5, "snapshots");
+
  cleanup:
     qemuTestDriverFree(&driver);
     VIR_FREE(capslatest_x86_64);
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
new file mode 100644
index 0000000000..7d5b0a4402
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
@@ -0,0 +1,105 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-2-format",
+      "name": "current",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "current",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "current"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-remove",
+    "data": {
+      "node": "libvirt-2-format",
+      "name": "libvirt-tmp-activewrite"
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
new file mode 100644
index 0000000000..17a020ba20
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
@@ -0,0 +1,131 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "current",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "current",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "current"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-remove",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "libvirt-tmp-activewrite"
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
new file mode 100644
index 0000000000..972d30b2e1
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
@@ -0,0 +1,163 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "current",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "current",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "current"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-remove",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "libvirt-tmp-activewrite"
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
new file mode 100644
index 0000000000..3cda5b4132
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
@@ -0,0 +1,167 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "current",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "current",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "current"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        },
+        {
+          "node": "libvirt-5-format",
+          "name": "libvirt-tmp-activewrite"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-remove",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "libvirt-tmp-activewrite"
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
new file mode 100644
index 0000000000..cb952eeb06
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
@@ -0,0 +1,65 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
new file mode 100644
index 0000000000..a540ca42e3
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
@@ -0,0 +1,97 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
new file mode 100644
index 0000000000..8ea6036a33
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
@@ -0,0 +1,101 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "d"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "b"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        },
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
new file mode 100644
index 0000000000..736d4fd9df
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
@@ -0,0 +1,62 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
new file mode 100644
index 0000000000..207d82e6b6
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
@@ -0,0 +1,66 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "c"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": false,
+      "granularity": 65536
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "b",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "b"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        },
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
new file mode 100644
index 0000000000..4a8e6c5cff
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
@@ -0,0 +1,16 @@
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        }
+      ]
+    }
+  }
+]
-- 
2.26.2




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