diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
index 98c2416200..5196a36d85 100644
--- a/tests/qemublocktest.c
+++ b/tests/qemublocktest.c
@@ -1396,6 +1396,21 @@ 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..0015b9ceb3
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-2
@@ -0,0 +1,49 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-2-format",
+      "name": "d"
+    }
+  }
+]
+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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-2-format",
+      "target": "d",
+      "bitmaps": [
+        {
+          "node": "libvirt-1-format",
+          "name": "d"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
new file mode 100644
index 0000000000..5691b408aa
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-3
@@ -0,0 +1,76 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "c"
+    }
+  }
+]
+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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
new file mode 100644
index 0000000000..454001531a
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-4
@@ -0,0 +1,126 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
new file mode 100644
index 0000000000..2fd43d7917
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-1-5
@@ -0,0 +1,130 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "d",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
new file mode 100644
index 0000000000..d719a90bd7
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-3
@@ -0,0 +1,49 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-3-format",
+      "name": "c"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-3-format",
+      "target": "c",
+      "bitmaps": [
+        {
+          "node": "libvirt-2-format",
+          "name": "c"
+        }
+      ]
+    }
+  },
+  {
+    "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
new file mode 100644
index 0000000000..9e37962344
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-4
@@ -0,0 +1,99 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  },
+  {
+    "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
new file mode 100644
index 0000000000..d6b20a5d05
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-2-5
@@ -0,0 +1,103 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "c",
+      "persistent": true,
+      "disabled": true,
+      "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"
+        }
+      ]
+    }
+  },
+  {
+    "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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
new file mode 100644
index 0000000000..b96e8910d7
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-4
@@ -0,0 +1,72 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-4-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-3-format",
+          "name": "a"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-4-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
new file mode 100644
index 0000000000..9570c34c40
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-3-5
@@ -0,0 +1,76 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "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"
+        }
+      ]
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-add",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "b",
+      "persistent": true,
+      "disabled": true,
+      "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-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"
+        }
+      ]
+    }
+  }
+]
diff --git a/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5 b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
new file mode 100644
index 0000000000..7e1020d96e
--- /dev/null
+++ b/tests/qemublocktestdata/bitmapblockcommit/snapshots-4-5
@@ -0,0 +1,33 @@
+pre job bitmap disable:
+[
+  {
+    "type": "block-dirty-bitmap-disable",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "a"
+    }
+  }
+]
+merge bitmpas:
+[
+  {
+    "type": "block-dirty-bitmap-enable",
+    "data": {
+      "node": "libvirt-5-format",
+      "name": "a"
+    }
+  },
+  {
+    "type": "block-dirty-bitmap-merge",
+    "data": {
+      "node": "libvirt-5-format",
+      "target": "a",
+      "bitmaps": [
+        {
+          "node": "libvirt-4-format",
+          "name": "a"
+        }
+      ]
+    }
+  }
+]